THUYẾT MINH BPTC ĐƯỜNG ĐÔ THỊ MỘC BÀI, TÂY NINHENGLISH

Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project DESCRIPTION OF TECHNICAL AND CONSTRUCTING METHOD ************************************* PART I: KNOWLEDGE AND AWARENESS OF THE BIDDER TO THE CONSTRUCTION PROJECT AND SITE I GENERAL 1.1 Information of tender - Name of tender: Construction of Moc Bai Urban Roads - Name of project: Greater Mekong Sub-region Corridor Towns Development Project in Moc Bai – Tay Ninh - Employer: Tay Ninh Greater Mekong Sub-Region Corridor Town Development Project Management Unit (Tay Ninh PMU) - Location: Loi Thuan Commune, Ben Cau District, Tay Ninh Province - The Construction of Moc Bai Urban Roads is approved through Tay Ninh Economic Zones Authority’s Decision No 140/QĐ-BQLKKT issued on the approval of construction project: “Greater Mekong Sub-region Corridor Towns Development Project in Moc Bai – Tay Ninh” dated on July 26, 2012 Moc Bai Urban located in the west of Tay Ninh Province, nearby Cambodia border, 60km from Ho Chi Minh city Moc Bai Urban located on the urban economic corridor town, under axes: Trans-Asia railway, highway HCM City Moc Bai, National road 22, the position facilitate Moc Bai Urban in relation to the national and international on road and railway The aim of this project is to create a good environment to change through invest budget to the prior urban infrastructure and enhance the holding competence in towns and cities This is appropriate with developing strategies of the programs and area cooperation strategies and it will contribute to the implementation of National cooperate strategy of the ADB Country Collaboration at of each participating country Tay Ninh Economic Zones Authority issued Decision No 140/QĐ-BQLKKT on the approval of construction project: “Greater Mekong Sub-region Corridor Towns Development Project in Moc Bai – Tay Ninh” dated on July 26, 2012 1.2 Scale of Bid: The scale of bid is performed as below: Road Đ.N1A: Starting point at Border Guard Post (Dia Xu Bridge) and the ending point crosses road Đ.D11 (on ĐT786, 100m from Dia Xu Bridge) Length of the road L=3.03km Road Đ.N1B: Starting point at the end of D11, 100m heading to Trans-Asia Highway from Dia Xu Bridge, the ending point is about 200m from the intersection with road Đ.D23 Length of the road L = 2.20km Road Đ.D10: Starting point at the centre of Đ.N25 (old name 75A) at Km1+606.13, the ending point crosses road Đ.N1 Length of the road L=2.27km Road Đ.D11: Starting point at the centre of Đ.N25 (old name 75A) at Km1+758.02, the ending point is at right angles to Road Đ.N3 and the horizontal curve to road Đ.D11 Length of road L=1.31km Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project Road 51: Starting point at the intersection with ĐD.7 (old name: road 28) and the ending point at the intersection with ĐD.23 of Moc Bai urban area Length of road L=2.94km Size of roads No Name of road Length of road (km) Width of road (m) Left Carriageway Right sidewalk sidewalk Total Road Đ.N1A 3.03 7.50 15.00 7.50 30.00 Road Đ.N1B 2.20 7.50 15.00 7.50 30.00 Road 51 2.94 5.00 10.50 5.00 20.50 Road Đ.D10 2.27 5.00 7.50 5.00 17.50 Road Đ.D11 1.31(*) 5.00 7.50 5.00 17.50 Total 11.75 Note: (*) length of the road is adjusted as the actual size II CONSTRUCTION SPECIFICATION 2.1 Road: Roadbed : supplement soil with compatible density ratio K>0.95 The thickness of the base is 30cm (or 50cm) K>0.98 Pavement structure : Pavement structure grade A1, demanding minimum tire pressure of pavement ≥173 MPa Asphalt concrete C12.5 thickness: 5cm Tack coat 0.5 L/ m2 Asphalt concrete C19, thickness: cm Prime coat L/m2 4x6 crushed stone with soil thickness… cm (review the structure) Pavement :  Pavement tile Tezzaro thickness: cm  Cement mortar : C8 thickness: 2cm  Concrete layer C8, crushed stone 4x6, thickness: 10 cm  Laterite gravel layber K≥0.95, thickness: 20 cm 2.2 Drainage system: Regarding excavation road base, all longitudinal ditches are stabilized by cement concrete, so water will flow along ditches to drainage locations on the alignment road For embankment road base, the water will flow under the natural terrain Designing the longitudinal drainage, including: Ditch (ditch slab); Sump; Odour control manhole; Manhole; Culvert pipe; Outlet gate 2.3 Lighting system: Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project According to standard TCXDVN 259:2001 2.4 Technical conduit system: In order to provide a favorable conditions for the construction and installation of pipeline infrastructure in the future as underground power lines, telecommunication cables, technical conduit system is proposed to be set at intersections 2.5 Traffic sign system, traffic organizing and traffic safety: Fully invest in every road, ensure of traffic safety and no roadblocks according to QCVN 41:2012/BGTVT “National sign regulations” and current regulations 2.6 Green space: In accordance with National Standards TCVN 362: 2005 “Urban green space”, the standard of project for trees along roads III TERRAIN, GEOLOGY, CLIMATE AND HYDROLOGY FEATURES III.1 Terrain feature Moc Bai urban area lies on flat ground, relatively low (elevation about +0.00m to +4.00m) and steep from North West to South East The highest area is the surrounding of the border gate, with average elevation above +3.0m The lowest area in the South East where there are flooding grass fields, with average elevation +1.0m to -0.3m There are many river, ditches, and channels The North lies Dia Xu channel flowing east-west from Vam Co Dong river to the borderline Vam Co Dong is in the East; in the South there are some small ditches and flooding, low land Around the urban is fields, swamps and bushes In the West urban, the Cambodia border gate area has now developed to a lively residential area The North lies Ben Cau town with low-rise buildings III.2 Geology feature Through area geological survey result, the stratum of the research is described in order from the top to the ending bottom of the survey scope of boreholes, there are layers as below: * Report of geological survey of Construction Road Đ.N1A:: + Layer Đ: is the granular backfill, with clay and sand This layer can be found at most of the boreholes (except HK9) Thickness of the layer at the boreholes varies from 0.6m (HK3) to 1.0m (HK8) + Layer 1: Dark grey clay mud and plants This layer is found in some boreholes in the area Its thickness varies from 0.3m (HK3) to 0.8m (HK2); elevation of the layer’s bed varies from 0.98m (HK3) to 0.35m (HK1) + Layer 2: Vicous red-brown fine sand mixed with with clay This layer is found in some boreholes in the area Its thickness varies from 0.8m (HK6, HK7) to 1.1m (HK5); elevation of the layer’s bed varies from 1.06m (HK6) to 0.52m (HK5) + Layer 3A: Clay mixed with with fine sand, red spots, white grey, light yellow State: softly viscous Its thickness varies from 0.9m (HK4) to 1.4m (HK9); elevation of the layer’s bed varies from -1.06m (HK9) to 0.03m (HK8) + Layer 3B: Clay, white grey, light yellow State: hard viscous This layer is found in some boreholes in the area (except HK6) Its thickness varies from 1.6m Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project (HK4, HK5, HK9) đến 5m (HK8); elevation of the layer’s bed varies from -3.72m (HK3) đến 2.83m (HK1) Drill did not reach the layer’s bed at HK8 + Layer 3C: Clay mixed with with little light yellow sand, red-brown State: half hard – hard This layer is found in most boreholes in the area (except HK8) drill did not reach the layer’s bed Summary of main physico-mechanical properties of the main layers Natural water content Wet density Void ratio Plasticity index Consistency Internal friction angle Cohesion force C W% w g/cm3 e0 Ip B o kG/cm2 Layer 83 1.50 1.890 36 1.09 50 09’ 0.044 Layer 19 1.93 0.653 12 0.38 160 23’ 0.090 Layer 3A 28 1.93 0.780 18 0.55 80 52’ 0.181 Layer 3B 24 1.97 0.703 20 0.29 90 22’ 0.223 Layer 3C 20 2.01 0.613 24 0.03 140 34’ 0.402 Soil desciption * Report of geological survey of Construction Road Đ.N1B : + Layer 1: Dark grey clay mud Main elements are clay, dust, and organic substance State: watery This layer is found in some boreholes in the area (except HK6) Its thickness varies from 0.5m (HK2) to 3.5m (HK7) + Layer 2: Silty clay, softly viscous – haft hard Main elements are clay, dust, sand; color blue grey, yellow, red-brown This layer is found in some boreholes in the area (except HK5, HK6); drill did not reach the layer’s bed (except HK8) + Layer 3: Mixed with clay, watery viscous – hard viscous Main elements are clay, dust, sand and sometimes laterite grit; color blue grey, brown-yellow This layer is found in some boreholes in the area (HK5, HK6, HK8); drill did not reach the layer’s bed Summary of main physico-mechanical properties of the main layers Natural water content Wet density Void ratio Plasticity index W% w g/cm3 e0 Layer 85,9 1.45 Layer 30,9 Layer 23,4 Soil desciption Consistency Internal friction angle Cohesion force C Ip B o kG/cm2 2.414 22 1.67 30 26’ 0,084 1.94 0.791 16 0.24 120 16’ 0,395 2.02 0.632 10 0.43 120 42’ 0,299 * Report of geological survey of Construction Road Đ.D10: Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project + Surface layer (only described): Black soft mud layer, at (HK2, HK4) Thickness 0.2 – 0.3m and white fine sand layer at (HK1, HK3) + Layer 2: Clay, clay mix laterite grit; color: yellow red, white grey, red grey, yellow red; state: hard viscous – hard High viscosity Layer lies right under surface layer and even deeper than bottom of the borehole Summary of main physico-mechanical properties of the main layers * Report of geological survey of Construction Road Đ.D11: Soil desciptio n Natura Wet l water density content W% w g/cm3 Void ratio Plasticit y index Consistenc y Internal friction angle Cohesio n force C e0 Ip B o kG/cm2 Layer 19 1.92 0.666 20.5 150 29’ 0,201 + Top layer (only described): Black soft mud layer, at (HK2, HK3, HK4) Thickness 0.3 – 0.6m and white fine sand layer at (HK1) + Layer 2: Clay, clay mix laterite grit; color: yellow red, white grey, red grey, yellow red; state: hard viscous – hard High viscosity Layer lies right under surface layer and even deeper than bottom of the borehole Summary of main physico-mechanical properties of the main layers Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project Soil desciption Layer Natural water content Wet density Void ratio Plasticity index Consistency Internal friction angle B o kG/cm2 150 31’ 0.201 W% w g/cm3 e0 Ip 20.4 1.93 0.670 20.2 Cohesion force C * Report of geological survey of Construction Road Đ.D51: + Top layer: Clay mixed with black humus, sand and white clay This layer is found in some boreholes in the area, lies from the ground surface to the depth of 0.2m (HK1, HK2, HK3, HK4) + Layer 1: Clay – white and yellow mixed with clay State: hard viscous – half hard Low viscosity This layer lies under top layer Thickness of this layer varies from 0.6m (HK1, HK2) to 0.7m (HK3) Elevation of the layer’s bed varies from 0.85m (HK1) to -0.22m (HK4) + Layer 2B: Clay mixed with laterite grit; color: grey mixed with red-brown, white grey mixed with red-brown, yellow with white spots… State: half hard – hard High viscosity This layer is found in some boreholes in the area (HK1, HK2, HK3, HK4) It lies under layer 1; and drill did not reach the layer’s bed According to the result of the supplementary geological survey conducted by Tedi South for the route from Km 1530 to the end of it with boreholes in September 2015, the distribution of the layers is as below: + Layer K: is the top layer Clay mixed with organic substance; dark grey; softly viscous This layer is found in all of the boreholes Its thickness varies from 0,3m (HKBS1) to 0,5m (HK-BS5) The elevation of they layer’s bed varies from 0,10m (HKBS5) to 0,40m (HK-BS1 & HK-BS2) + Layer 1A: Clay with high vicosity (CH), Dark grey, white grey, sometimes mixed with organic substance; state: watery – watery viscous This layer is found in boreholes HK-BS5, HK-BS6 HK-BS7 Its thickness varies from 1,3m (HK-BS5) to 2,6m (HK-BS7) Elevation of the layer’s bed varies from -1,20m (HK-BS5) to -2,30m (HK-BS7) + Layer 1b: Clay with low viscosity (CL); Yellow brown, white grey; sometimes mixed with grit and gravel; state: soft viscous This layer is found in all boreholes Its thickness varies from 0,9m (HK-BS3) to 2,7m (HK-BS5) Elevation of the layer’s bed varies from -0,70m (HK-BS3) to -3,90m (HK-BS5) + Layer 2: Clay with low vicosity; Blue grey, white grey, yellow brown, red brown; sometimes mixed with laterite grit; state: hard viscous – half hard This layer is found in all boreholes However, the drill did not reach the bottom of they layer The thickness of the drilled layer varies from 2,5m (HK-BS5) đến 5,7m (HK-BS3) Summary of main physico-mechanical properties of the main layers Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project Conclusion: Most of the roadbed lie on weak geological substance with high void ratio, low intensity, high compressibility and settlement Therefore, we would concentrate on the base treatment before constructing of the pavement layer on it III.3 Climate feature The climate in Moc Bai have the features of climate of Tay Ninh province: it is relatively temperate and divided into two season: dry season and wet season Wet season starts from May to November; and dry season starts from December to April Futhermore, the local barely suffer from stormy weather and other unfavorable factors Besides the advantages, some main disadvantages of this place is the variation and specific differentiate of the factor in each season The contrast between dry season and wet season, rainfall regime, wind regime and moisture regime somehow becomes the obstacle to the development of manufacturing and living Properties of the project area’s climate:  Air temperature:  Average temperature in 2004- 2006: 27,40C-27,50C  Highest-average-temperature month is April: 28,50C-29,60C  Lowest-average-temperature month is December: 25,50C-25,70C  Air humidity:  Average humidity in 2004-2006: 76,7% - 79,7%  Highest-average-humidity month is July, August, and September: 80% - 89%  Lowest-average-humidity month is December, January, and February: 67%71%  Rainfall intensity: Natura l water Soil conten description t Wet density Void ratio Plasticit y index Consis tency Internal friction angle Cohesion force C W% w g/cm3 e0 Ip B o kG/cm2 Layer 16.53 1.94 0.629 13.00 0.20 140 57’ 0.241 Layer 2B 21.11 1.98 0.676 26.60 150 04’ 0.471 Layer 1a 69.1 1.56 1.881 39.8 1.02 40 59’ 0.077 Layer 1b 23.6 2.0 0.685 23.6 0.34 70 54’ 0.133 Layer 20.2 2.04 0.601 30.8 0.04 180 18’ 0.40  Rainfall intensity of year 1655 mm Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project  Highest-rainfall-intensity month is October: 334 mm  Lowest-rainfall-intensity month is February: 56 mm  Sunshine duration:  Highest sunshine hour in a day: 8,3 hour  Highest sunshine hour in a day: hour  Wind:  main wind seasons every year:  Dry season: Southwest wind or West – Southwest wind  Wet season: Northeast wind In general, the climate is relatively moderate, barely suffers from storm, flood as well as natural disaster III.4 Hydrological feature As being affected by the rain regime and wind regime, the surface flow is also divided into two season: floody season and dry season Floody season occurs in the area in May to November anually Dry season occurs in December to April of the following year As for hydrologic, the local surface water depends on of Vam Co Dong river Vam Co Dong river start from the high hill with the height of 150m in Cambodia; its flow in direction of Northwest – Southeast with the total length of 220km A part of the river belongs to Moc bai urban area about … km Vam Co Dong river flow to Bau Quy intersection (Can Duoc, Long An province), then merge with Vam Co Tay river and flow into the sea The valley area is 8.500km2, the water flow rate is 96m/s Besides Vam Co Dong, the area also has ditches starting from Vam Co Dong river flow inside the land, which create waterway system; drainage ditches distribute all over the area from the north to the south Hydrological survey result: (According to the supplementary hydrological survey result on road Đ.N1A and 51 of project Construction of Moc Bai urban conducted by TEDI SOUTH dated on October 03, 2015)  Hydrological regime of the area The area’s hydrological regime is the same as the hydrological regime of Vam Co Dong river + In the dry season and when there are small diluvial rains, the water level of the ditches and small rivers dependent on the tide of Vam Co Dong river The level of water is up and down in an irregularly semidiurnal cycle When the tide is up, the flow directs from Vam Co Dong river to the borderline of Vietnam and Cambodia; when the tide is low, the flow directs from the borderline of Vietnam and Cambodia to the Vam Co Dong river + In floody season, especially when there are extreme diluvial rains, the flow only direct to Vam Co Dong river and the period of this flow direction is more than one month + The most extreme dilivial rain in the area occurred in 1978, 1996, 2000, 2001, 2011, and 2013 with the flood in 2000 is the most extreme flood in the past 50 years Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project  Survey’s highest water level + At the border guard post in the starting point of road Đ.N1A (110 06’ 13’’ N, 1060 09’ 15’’ E) is the highest water level in 2000 Hmax 2000 = 2.18m, time of the flood is about month Highest water level in 2013 Hmax2013 = 1.68m (0.5m lower than the highest water level in 2000) (information collected from local citizen frequently go past the post and from the borderline soldiers) + At Dia Xu bridge on ĐT786, the ending of road Đ.N1A (110 06’ 09’’ N, 1060 10’ 54’’ E) is the highest water level in 2000 Hmax 2000 = 2.01m, time of the flood is about month Highest water level in 2013 Hmax2013 = 1.68m (0.33m lower than the highest water level in 2000) (information collected from Mr Nguyen Van Hoa, 47 years old, Thuan Tay hamlet, Ben Cau district) + At the double electric post on the left of the road connecting Trans-Asia highway with Thuan Dong hamlet, near the pontoon bridge (Bailey bridge on Dia Xu ditch 110 05’ 50’’ N, 1060 12’ 30’’ E) is the highest water level in 2013 Hmax 2013 = 1.40m Highest water level in năm 2000 Hmax2000 = 1.90m (0.5m higher than the highest water level in 2013) (information collected from Mr Nguyen Van Non, 55 years old, Thuan Dong hamlet, Loi Thuan commune, Ben Cau district)  Water level at Go Dau Ha hydrological station + TEDI SOUTH has updated statistic of water level to the end of 2014 of Go Dau hydrological station (at the pier of Go Dau bridge) At the station, the years with highest water level is Hmax1978 = 1.43m, Hmax1996 = 1.53m, Hmax2000 = 1.80m, Hmax2001 = 1.33m, Hmax2011 = 1.25m, and Hmax2013 = 1.21m The highest water level ever in Go Dau Ha station within 20 days is 1.45m (from October 03, 2000 to October 22, 2000) and the highest water level since 2001 in Go Dau Ha station within 20 days is 0.85m + At Go Dau Ha station, the average water lever throughout years is Ha = 0.35m + According to series of 53 highest water level each year statistics, and applying Pearson type III distribution, TEDI SOUTH has drawn the highest water level curve and determined at Go Dau Ha station H1% = 2.02m, H4% = 1.59m  Road design water level: + The frequency of highest water level is 4%: The frequency of highest water level 4% is used to determine the height of road shoulder According to the correlation of highest water level between the survey points and Go Dau Ha station: oRoad 1A : The starting point (Border guard post H2000 = 2.18m) has H4% = 1.97m; The ending point (Dia Xu bridge on ĐT786 H2000 = 2.01m) has H4% =1.80m The height of road shoulder design is applied to the road curves all over the road oRoad 51 : The starting point (the natural landform height about 2.7 - 2.9); the ending point (as the pontoon bridge H2000 = 1.90m) has H4% =1.69m The height of road shoulder design is applied to the road curves all over the road + The height of highest water level within 20 days: The height of highest water level within 20 days is used to determine the height of pavement layer bed According to the correlation of highest water level between the survey points and Go Dau Ha station: Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project oRoad 1A : Starting point has H20 = 1.83m (as H20 in 2000) and H20 = 1.23m (as H20 in 2012); Ending point has H20 = 1.66m (as H20 in 2000) and H20 = 1.06m (as H20 in 2012) The height of pavement layer bed design is applied to the road curves all over the road oRoad 51 : Starting point (high natural landform, not affected by the water of Vam Co Dong river); Ending point has H20 = 1.55m (as H20 in 2000) and H20 = 0.95m (as H20 in 2012) The height of pavement layer bed design is applied to the road curves all over the road  Conclusion: As the design process did not mention of the water level frequency within 20 days, to make the height of the road design is harmonious with the other roads in the urban area, the highest height of water level within 20 days of 2012 is chosen to be the design height of water level in order to determine the pavement layer bed and the height of the roads of the project IV SCALE AND SPECIFICATION OF DESIGN The design scale of the routes is in accordance with the Decision No.140/QĐBQLKKT of Tay Ninh Economic Zones Authority issued on the approval of construction project: “Greater Mekong Sub-region Corridor Towns Development Project in Moc Bai – Tay Ninh” dated on July 26, 2012 4.1 Scale of construction of Road Đ.N1A: + Length (include the intersection): L = 3.03km + Starting point: at Border guard post (Dia Xu bridge) + Ending point: intersection with internal road Đ.D11 (on ĐT786, is the starting point of road Đ.N1B) Construction technical standard is defined as below: + Asphalt concrete pavement grade A1, horizontal gradient 2% + Road’s cross section: o Carriageway: 7.5m x = 15.0m o Sidewalk : 7.5m x = 15.0m Total: 30.0m As for the nature of the construction – urban roads which has industrial zones, some technical standards is proposed by TEDI SOUTH as below: + Construction type: Urban road + Construction grade: grade III + Calculated speed: V= 50Km/h + Load capacity of road: single axle 120KN Standards of technical geometry is in accordance with TCXDVN 104-2007: No Name of criteria Design speed Maximum super-elevation isc Unit Value km/h 50 % Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project + Prescribed form of implementation of meeting, namely: implementing daily meeting between the chief of construction with supervise of the investor, staff of technical and group, weekly meeting internally works with supervisors of the investors, monthly meeting between company management and excutive board of the site, between the investor and the company to determine the volume of work completed, addressing the outstanding problems in the process of implementation, review progress and propose preventive measures Machinery and Equipment Management: + All the machinery and equipment related to construction activities are monitored to catalog and organize periodic maintenance to ensure timely service for construction + The management and co-ordination on the construction machine is made by professionals who manage machinery, equipment, operations personnel operating the machine must adhere strictly to the provisions of operation for each type of machinery specific equipment The types of machinery are redundant alternative solution to not affect the construction schedule when the problem Control activities Purchase + All suppliers of materials for the project and now not exclude internal or external partnerships are made in the list on the basis of checking the quality of the balance of the cost of products, supply as well as reputation and service approach to ensure effective economic and technical as well as restrictions to the minimum ability to wait due to materials not supplied in time and in accordance with the construction schedule To repair action and preventive + The company has written specifies the implementation of corrective actions for any mistakes inappropriate arising in the time of construction, not limited merely technical mistakes or mistakes from the document management, schedule and quality supply of raw materials, and specifies how to conduct preventive activities to avoid repeating new or mistakes arise suitable, especially the precautions for work safety Training works Interest and compliance with the regulations on training to ensure that all individuals understand the functions assigned tasks, staffing for the work in accordance with the criteria of titles, ensuring that each work is arranged in line with mission capability For professional activities prior to deployment were carried out training for all staff on the work of occupational safety II QUALITY MANAGEMENT FOR CONSTRUCTION WORK, PROCESS MAKE THE METHOD OF CONSTRUCTION WORK , CHECK AND ACCEPTANCE KCS Work: KCS works is an important task of the contractors in ensuring the quality of works in accordance with the technical requirements of the design and construction process technology Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project KCS parts must be responsible before the Director for the quality of work items as well as the overall work and the right to suspend the production of construction teams to see the construction not conforming to the measures or procedures approved technology KCS work content KCS method statement for the construction, items and constructions The process of construction technology KCS to carry out a material experiments before bring to site to ensure compliance with requirements (sand, stone, cement, aggregates, steel) KCS for stages of construction work at the site After the construction methods and process categories are monitoring Consulting and Investor approved for inclusion in construction KSC groups implemention of monitor work The team constructed in accordance with the technical requirements mentioned in the methods of construction, process technology as well as the current state standards Quality assurance method Construction standards for acceptance No Standard name Code I SURVEY Standards topographic maps at scale 1:500; 1:1000; 1:2000; 1:5000; 1:10000; 1:25000 (outdoor job) 96 TCN 43 - 90 Surveying in construction – General requirements TCVN 9398:2012 Survey procedure for car roads 22 TCN 263 - 2000 Standards for construction soil test TCVN 4195 ÷ 4202-2012 Geological drill TCVN 9437:2012 Measurement techniques and processing of GPS data in topography TCVN 9401:2012 Traffic way survey standard on soft soil 22 TCN 262 - 2000 Earth work – Construction, check and acceptance TCVN4447-2012 Method of wrapping, transporting and saving sample TCVN 2683:2012 10 Method for correction of soil test results TCVN 9153:2012 11 Mapping symbol norms ratio 1/500, 1/1000, 1/2000, 1/5000 96 TCN 31-91 12 Construction survey - Basic principles TCVN 4419:1987 13 Method to determine Repose angles (Dry & Saturated) for Sand in Laboratory TCVN 8724: 2012 Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project No Standard name Code 14 Method to determine Max and Min Voids Radio for Sand in Laboratory TCVN 8721:2012 15 Construction soil – Soil classification 22TCN 260-2000 16 Flexible pavement – standard test method for determination of elastic modulus of pavement structure using Benkelman beam TCVN 8867:2011 17 Uniaxial compression test method of rock sample at dry and saturate status TCVN 7572:2006 18 Test procedure of Vane test at site 22 TCN 355 - 06 19 Soil for construction – Site test method (CPT) TCVN 9351:2012 20 Technical instruction for geological survey in Castor area (Karst) TCVN 9402:2012 21 Soil for construction – Test method (CPT) TCVN 9352:2012 22 Construction soil – Classification TCVN 5747-1993 23 Mortar for masonry - Test methods TCXDVN 3121-2003 24 Solid bitumen – Technical requirement and test method 22TCN 279-2001 25 Heavy weight concrete – Method for determination of compressive strength by rebound hammer TCVN 9334:2012 26 National technical regulation on establishment of levelling network QCVN 11:2008/BTNMT 27 National technical regulations establishment of Horizontal control network QCVN 04:2009/BTNMT II DESIGN 28 Urban road – Design requirement TCXDVN 104: 2007 29 Road – Design requirement TCVN 4054 - 2005 30 Design procedure for soft road cover 22 TCN 211 – 06 31 Design procedure for survey, design road for soft soil 22 TCN 262 - 2000 32 Route and sidewalk – basic rules of accessible design and construction for people with disabilities TCXDVN 265-2002 33 Reinforced concrete pipes for water draining TCVN 9113:2012 Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project No Standard name Code 34 Bridge design standard 22 TCN 272 – 05 35 Design procedure for culvert, bridge according to critical state 22 TCN 18 – 79 36 Geotextile fabric in soft soil treatment 22 TCN 248 - 98 37 Road signal regulation QCVN 41:2012/BGTVT 38 Drainage and sewerage – External Networks and Facilities – Design Standard TCVN 7957:2008 39 Lighting standard design for roads, street and squares TCXDVN 259: 2001 40 Greenery planning for public utilities in urban areas - Design standards TCVN 9257 : 2012 41 Concrete and reinforced concrete structures TCVN 5574:2012 - Design standard 42 Retro reflective sheeting for traffic control TCVN 7887:2008 43 Guidance for application existing technical specifications to enhance quality management in designing and building asphalt pavement Decision No 858/QĐ-BGTVT dated on 26/3/2014 44 Regulation on method testing tire treads on the asphalt as determined by Wheel tracking equipment Decision No 1617/QĐ-BGTVT dated on 29/4/2014 III BUILDING AND ACCEPTANCE Testing process of determining the compactness of road base and foundation by sand hopper 22 TCN 346 – 06 Standard Test Method for CBR (California Bearing Ratio) of Soils and Unbound Road base in Place TCVN 8821:2011 Specification For Construction And Acceptance Of Water Bound Macadam Layer TCVN 8858:2011 Natural Aggregate for Road Pavement Layers Specification for Material, Construction and Acceptance TCVN 8857:2011 Specification for Construction of Hot Mix Asphalt Concrete Pavement and Acceptance TCVN 8819:2011 Standard Practice for Asphalt Concrete TCVN 8820:2011 Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project No Standard name Code Mix Design Using Marshall Method Standard Test Method for Measuring Pavement Macro-texture Depth using a Volumetric Technique Standard Test Method for Measuring Road pavement Surface Roughness Using a 3.0m TCVN 8864:2011 Straight Edge Culvert and bridge – Building and acceptance 22 TCN 266 – 2000 10 Cement Concrete – testing regulations 22 TCN 60 – 84 11 Standard test method for splitting tensile strength of aggregate material bonded by adhesive binders TCVN 8862:2011 12 Sampling resin materials used for land roads, airfields and yards 22 TCN 231 – 96 13 Traffic paints TCVN 8791:2011 TCVN 8787:2011 TCVN 8786:2011 TCVN 8788:2011 14 Procedures of soil and macadam compaction in laboratory 22 TCN 333-06 15 Testing process for determining CBR index 22 TCN 332-06 of soil and macadam in laboratories 16 Heavyweight concrete compound – testing method TCVN 3106:1993 to TCVN3111:1993 17 Heavyweight concrete – testing method TCVN 3112:1993 to TCVN 3120:1993 18 Heavyweight concrete compound and heavyweight concrete - Sampling, making and curing of test specimens TCVN 3105-1993 19 Concrete - Requirements for natural moist curing TCVN 8828:2011 20 Concrete -Classification by compressive strength TCVN 6025-1995 21 Standard Method of Test for Plastic Fines in Graded Aggregates and Soils by Use of the Sand Equivalent Test AASHTO T176 (1997) 22 Specification for Polymer modified TCVN 8816:2011 TCVN 8866:2011 Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project No Standard name Code Cationic Emulsified Asphalt 23 Cationic Emulsified Asphalt – Specification and test method TCVN 8817-1:2011 to TCVN 8817-15:2011 24 Cut-back Asphalt - Specification and test method TCVN 8818-1:2011 to TCVN 8818-5:2011 25 Flexible Pavement – Determination of Elastic modulus of soils and pavement components using Static Plate Load Method TCVN 8861:2011 26 Test method for Unconsolidated – Undrained and Consolidated – Drained for cohesive soils on tri-axial compression equipment TCVN 8868:2011 27 Method for measurements of pore pressures in soil TCVN 8869:2011 28 Geo textile – Test method TCVN 8871-1:2011 to TCVN 8871-6:2011 29 Method for measurements and assessement roughness by International Roughness Index (IRI) TCVN 8865:2011 30 Assembled concrete and reinforced concrete structures - Practice for erection and acceptance TCVN 9115:2012 31 Reinforced concrete box culverts TCVN 9116:2012 32 Asphalt concrete – Test method TCVN 8860-1:2011 to TCVN 8860-12:2011 33 Process of testing mineral dust used for asphalt concrete 22TCN 58-1984 34 Methods of testing cement – Part 7: Methods of talking and preparing samples of cement TCVN 4787-2009 35 Portland cements – Specifications TCVN 2682:2009 36 Portland blended cement - Specifications TCVN 6260:2009 37 Aggregates for concrete and mortar Specifications TCVN 7570:2006 Cement - Test method TCVN 4029:1985 to TCVN 4032:1985 TCVN 6016:1995 to 38 Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project No Standard name Code TCVN 6017:1995 39 Mortar for masonry - Specifications TCVN 4314:2003 40 Water for concrete and mortar - Technical specifications TCVN 4506 :2012 41 Hot rolled carbon steel for building Technical requirements TCVN 5709:2009 42 Steel structures - Design standard TCVN 5575-2012 43 Monolithic concrete and reinforced concrete structure – Codes for construction, TCVN 4453:1995 check and acceptance 44 Concrete and reinforced concrete structures Minimum technical conditions for execution and acceptance TCVN 5724:1993 45 Code of practice of construction and acceptance TCXDVN 305:2004 46 Standard Specification for Zinc (Hot Dip Galvanized) Coatings on Iron and Steel Products ASTM A123 47 Paint and coating for metal protection – Method of tests – Exposed to weathering conditions TCVN 8785:2011 48 Welding and allied processes – Vocabulary TCVN 5017-1:2010 (ISO 8571:1998) TCVN 5017-2:2010 (ISO 8572:1998) 49 Steel structures - Fabrication , assembly, check and acceptance -Technical requirements TCXD 170-1989 50 Chemical admixtures for concrete TCVN 8826:2011 51 Code of Practice for building safety technique TCVN 5308:1991 52 Masonry structures - Codes for construction, check and acceptance TCVN4085:1985 53 Cements – List of properties TCVN 4745:2005 54 Masonry cement TCVN 9202:2012 55 Hot-rolled steel sheet of structural quality TCVN 6522:2008 56 Standard Specification for Plain and AASHTO M251 – 06 – UL Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project No Standard name Code Laminated Elastomeric Bridge Bearings ASTM D4014 – 03(2007) 57 Portland cement - Test method for heat of hydration TCVN6070-95 58 Cement-Quick Determination of Pressure Resistance Limit TCVN3736-82 59 Concrete and reinforced concrete structures - Guide on technical measures for TCVN 9345:2012 prevention of cracks occurred under the action of hot humid climate 60 Foundation works - Check and acceptance TCVN 9361:2012 61 Highway embankments and cuttings – Construction and quality control TCVN 9436:2012 Safe working standard TCVN 5308-1991: Technical regulations for safety in construction TCVN 3985-1999: Acoustics – Allowable noise levels at workplace TCVN 4086-1995: Electric safety in construction - Requirements TCVN 3254-1989: Fire Safety - Requirements TCVN 3255-1986: Explode Safety - Requirements QCVN 06:2010/BXD: National technical rules of fire safety for house and work QCVN01:2008/BCT: National technical regulations on electrical safety Enviroment protection standard QCVN26:2010 BTNMT National technical regulations on noise QCVN27:2010 BTNMT National technical regulations on shake 10 TCVN 5937- 2005 Air quality – Around Air Standard 11 TCVN 5938-2005 Air quality - Maximum allowable concentration of hazardous substances in ambient air 12 TCVN 6962-2001 Vibration and shock - Vibration emitted by construction works and factories - Maximum permitted levels in the environment of public and residential areas Standard for quality management  Decree No 46/2015 / ND-CP dated 05/12/2015 on quality management and maintenance of construction Measures to ensure the quality of specific works : a The construction for earthwork  Fill materials are tested and attached together with the samples sent to the GS and CDT before the start of construction for 10 days Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project  Determination of density K: not less than 95%,  Maximum dry density and optimum moisture content determined by Proctor improvements Use sand filling method to determine the density at the site Determination of Soil moisture  Determination of dimension by steel ruler, gradienter,theodolite  In the construction of embankment process ensures compact construction anywhere there, speeding up construction of the embankment during the dry season to avoid the impact of bad weather For filling work, the contractors regularly watered soil route to dustproof, ensuring environmental b Gravel aggregate work: * For gravel transport to dump material :  For 200m3 make test :grading, elastic limit, index of plasticity, CBR, LA, plat piece of aggregate content… * Checking in construction work:  Geometrical dimension: Each kilometer of road test a minimum of sections, on each test section thickness of location (+ 10cm width tolerance, thickness (base) + 0.5cm and (sub base) -2cm to + 1,0cm, tolorence slope of the sidewalk + 5% )  Flatness with a 3m gap between the bottom and the surface aggregate layer must be less than 1cm and 2cm for base for sub-base  Checking for grading : Each 200m3/1 sample or 01 shift for constructed take 01 sample  Compaction K>0,98, Checking by pouring sand method, each 100m test 01 time per 01 lane * Checking after construction work:  Checking for geometrical dimension : sections/1km, each section to carry out measure the depth /01 location  The testing with items: grading, elastic limit, index of plasticity, CBR, LA, plat piece of aggregate content…with pavement has width 7m is testing sample/1km  Density determination for actual at site and compaction K by pouring sand method, pavement has width 7m is testing 03 sample/1km c Costructed 4x6 stone layer insert gravel  Maccadam pavement has only constructed when shoulder done follow design requirement  The tolerance purposes only condescending to small errors in the construction process, so only apply while the acceptance test During the construction process, must comply with all requirements of the design, not based on the tolerance that construction changes, designed tolerated  The tolerance specified as follows: + Regarding the geometry factor:  Tolerance to allow for width pavement  10cm Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project +  Tolerance to allow for thickness pavement  10% not than 20mm  Tolerance to allow for transverse slope and shoulder not than 15mm  Flatness tested by a 3m gap must not exceed 15mm For pavement strength:  Modulus pavement must meet or exceed the design modulus E>=1000Kg/cm2  Method testing: + The width of pavement: Checking 10 sections/1km + The thickness of pavement: Checking 03 sections/1km, each in cross section will check 03 location in centerline and in edge 02 side of road for 1m + Flatness: checking 03 location/1km , each in location put ruler by 3m Measure the clearance between the road surface and the bottom edge of the ruler, how each 50cm / point measured + Strength of pavement: Static compression test, vane shear test  Pavement after construction is complete maintenance until construction next item If sunny days watering, watering 2-3l / m2, depending on how much sun d Constructed in asphalt pavement For geometrical dimension : Dimension The width pavement of asphalt The thickness of asphalt layer: + Bottom layer + Above layer Tolorence Remarks -5cm Total narrowing does not exceed 5% of the length ±10% ±8% ±5% Apply for 95% of all measurement points, the remaining 5% must not exceed 10mm Transverse slope asphalt layer: + Bottom layer + Above layer ±0,005 ±0,0025 Apply for 95% of all measurement points Tolerance does not exceed ±5mm Apply for 95% of all measurement points  For flatness: checking by ruler 3m  For roughness: checking by pouring sand method, requirement the height greater than or equal to 0,4mm  For compaction: Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project  Compaction factor >0,98  Each in 200m road 02 lanes or 1.500m2 asphalt concrete pavement drill taken 01 sample group has diameter 101,6mm to testing compaction factor  For adhesive strength: checking by eye  Joints quality: joint have to linear, flatness, not surface void, have not edge, have not gap  Furthermore, taking asphalt concrete sample to checking physic-mechenical: average density of asphalt concrete ,moisture capacity, swelling value, water stability,ingredient of asphalt concrete , content of bitumen for asphalt concrete mix,… e Culvert pipe work  Culvert have to according to standard TCVN 9113:2012  Culvert has to laying exact according to design drawing After pipe laying checking straightness, flatness, elevation and design slope Tolerance bottom level is 10mm, ensure inlet opening and inlet outlet uniform f Concrete work  Concrete work according to standard TCVN 4453-1995  The samples testing strength of concrete taken a pouring place and curing according to specified TCVN 3105-1993.Testing sample to follow by group each group taking 03 sample according to specified, taking same time location, dimension according to standard 15x15x15cm  Concrete strength in site after testing 28 days by pressing sample at site was satisfactory requirement of design when average value of each of sample group not less than design strength and no sample in less than 85% design strength  If result to meet the requirement according to specify , structure or structure part will be approval III ACCEPTANCE WORK:  In each stage of acceptance the contractor will conduct acceptance work for the stage after the acceptance of the following levels: Internal acceptance:  Parts include officials in charge of construction, the construction team leaders participated in the construction and installation was commissioned The parties will conduct inspection of construction work was timely, fix the errors before organized to a higher level Acceptance at site:  Part include : chief engineer , technical engineer, checking the work done by the teams 3.Internal acceptance of contractor :  The company's technical department will work with chief Engineer, the technical staff in charge of inspecting the construction work has been completed at the construction site, repair to mistake for remand Competent acceptance: Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project  Acceptance work with competent only done after finished repair all before mistake After you have organized to follow the same level on the contractors will investor and construction Supervision consultant conducting test work has been completed  The acceptance documents are kept on as-built and as a basis for the settlement of each stage and the whole works IV DOCUMENTS COMPLETED, PAYMENT, ACCOUNT, QUANTITY OF DONE Payment document: After each phase of construction, the investor will pay quantity to the contractor based on the actual quantity of work completed Payment documents include: + Minutes of acceptance for completed quantity has confirm of investor’s representative or consultant representative (if any) or contractor’s representative (according to minutes of acceptance sample has writing quantity follow current specify) + The minutes of quantity increase or reduce (if any) compare with the contract, certified by the investor or consultant representative (if any) and representatives of the contractor + Payment request of the contractor should display the following contents: the value of completed quantity under contract, the value of the increase of work (if any), deduct the advance, the value of payment requests in the period after offsetting these amounts certified by the investor representatives and representatives of the contractor Account document: Within 60 days after receiving the minutes of acceptance have completed the entire content of the work under the contract, the contractor will submit to the investor account document with detailed documentation in the form that the Employer approved investments, including + Minutes of acceptance complete the entire scope of the work under the contract + The table of calculating of account value in contracts, which specify the part paid and the remand value which the investor is responsible to pay for contractors + As-built document, record work for construction + The result testing and experimental + Other document as agreed in the contract (if any) Time for account document submit of the contract does not exceed 60 days from the date of acceptance of completion of the entire content of the work necessary to perform the contract, including increase works (if any) → Contractors to ensure the right processes, the right time to complete the procedures, account document PART VI– RETURN OF PLAN Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project Contractor Areas rent land to arrange the construction site, the contractor will be refunded in accordance with the request of the owner After completion of the contract, the items such as road, spoil area and other temporary constructions must be lifted Except where otherwise instructed by Supervision Consultant Additionally Contractor will be responsible for repair and return the old road and the site restored under the guidance and approval of the Supervision Consultant After construction is complete the work, the contractor will carry out cleaning up the site and hand over implementation of the project PART VII – FINISHED WORK AND ACCEPTANCE –HAND OVER Inspection, quality of acceptance construction work will be to carry out at site to follow project technical requirement - Finished work and acceptance will be carry out often with each item - This work was conducted when all construction procedures completed - For parts hidden, lies a secret place can not be checked after completion of the project after the construction is complete, the items which the Contractor with supervision consultant engineers conducting test records established before fill in - Construction site cleanup, repair leveling ground by motorbike or construction work to make up In the course of construction, after construction is complete each item needs cleaning, clean up immediately After construction is complete the whole works contractor to conduct clean up again to make sure before putting into use the works not only quality assurance techniques to clean and beautiful landscape - Demolition of the temporary works and moving machinery out of the site, workshops,temporary house Depending on the specific conditions Contractor machinery layout and cleanup workers hygiene items - After finishing and cleaning up the finished items, in taking over and handing over the project - The Contractor shall make as-built drawings of construction parts and construction The work make as-built drawings of compliance with Decree 46/2015 / ND-CP issued on quality management of construction works PART VIII – MAKE AS-BUILT DRAWING Content as built drawing in accordance with state regulations, specifications and as built drawing number of agencies under the guidance of storage and owners When finishing the complete As-built drawing, contractors are responsible for submitting for consultation and monitoring the process confirmed in writing after that new work with the store to the procedure and delivery of records - As-built documents only considered done when writing the official reception of the agency as decentralized storage Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project PART IX – WARRANTY FOR CONSTRUCTION, MAINTENANCE DURING CONSTRUCTION After completion of works will be planned in collaboration with investors and relevanting to conduct acceptance test procedures, handing over the project put into use Warranty work arising contractor since handing over the project to the end of the warranty period specified in the contract terms The warranty work done according to Decree 46/2015 / ND-CP issued on quality management and maintenance of buildings The warranty period and amount covered by the contract provisions Contractors refund warranty work after the end of the warranty period and by the investor confirming completed warranty work *Maintenance items in the construction process are detailed in the methods of construction items in Part IV, Part VI - Technical statement and construction organization * Repairs work in during the warranty period Repairs damaged during the warranty works contractors comply with Article 36: Implementation of construction warranty of Decree No 46/2015 / ND-CP on quality management and maintenance of buildings - Contractors will be held immediately redress for damage incurred during the warranty period and bear all expenses relating to warranty for parts of their work done after receiving the notice investor of the project - After receiving notice of the investors for the detection of damage or defect of the works in the warranty period, the contractor immediately carry out the following : + Engineer to inspect and survey the site, to find out the cause for radical remedial measures + Make method to repair and submit for investor , consultant to check and perform + Have plans for mobilization of equipment, materials and manpower to organize immediate repair damaged positions when investors accepted - In case if the term of the construction contractors not perform repair work, the investor has the right to hire another contractor (third party) the implementation of this work and all expenses for repairs to pay for a third party shall be borne by the contractor and will be deducted from the contractor's warranty money and notify the contractor value, construction contractors must be approved value - Contractors refuse warranty construction and equipment in the following : + Construction and construction equipment damage or defects arising through no fault of the contractor caused or caused by irresistible + Investor infringe the law about construction laws on the competent authorities to be forced to dismantle + Use of equipment, the wrong building construction processes operate - The contractor will pay compensation for damage caused by their faults damaged buildings, construction work incident even after the warranty period Project: Greater Mekong Subregion (GMS) Corridor Towns Development Project Bid: Moc Bai Urban Road Sub-project PART X - CONCLUSION Generally, this is a construction method for Our Package: Urban road project under Project Moc Bai Urban development along the corridor MeKong Tay Ninh If winning our commitment to ensure construction quality, progress, art and handed over on time stipulated Tay ninh Province, July 21st, 2016 REPRESENTATIVE OF THE PARTNERSHIP BIDDER