Part i general introduction about the project and the contract package BOBANG

Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section PART I GENERAL INTRODUCTION ABOUT THE PROJECT AND THE CONTRACT PACKAGE TABLE OF CONTENTS CHAPTER I: GENERAL INTRODUCTION .3 1.1 1.2 CHAPTER II: 2.1 2.2 2.3 2.4 2.5 2.6 2.7 CHAPTER III: 3.1 3.2 3.3 3.4 3.5 3.6 3.7 GENERAL INTRODUCTION General introduction about the project Introduction about Contract NIP/CP-7 LEGAL BASIS FOR DETAILED DESIGN NATURAL CONDITIONS OF THE PROJECTED LOCATION GEOGRAPHY STATION MATERIAL SOURCE Soils, sands, stones Cements and Steels Bitumen Corrugated Iron and Road Signs Oil and Gasoline Electricity Other materials EXISTING NATIONAL HIGHWAY NO.38B CONDITIONS AND DESIGN SOLUTIONS 10 GENERAL EXISTING NH38B 10 LIST OF TECHNICAL SPECIFICATIONS 10 DESIGN SOLUTIONS 11 Road class and cross section 11 Pavement 12 Embankment design 12 Intersection 12 Drainage design 12 Bridge 13 Traffic safety 18 Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section PART I GENERAL INTRODUCTION ABOUT THE PROJECT AND THE CONTRACT PACKAGE Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section CHAPTER I: GENERAL INTRODUCTION GENERAL INTRODUCTION 1.1 General introduction about the project National highway No.38B starts from the intersection in Hai Duong City (Km01+000) and ends at Hung Yen Town (Km49+679); the total length of this road is approximate 50Km National highway No 38B passes through two province: Hai Duong and Hung Yen province, those are main economic areas, therefore National highway No 38B is significant for economic development of those areas Moreover, this highway is in relation to Viet Nam road network; Traffic along National highway No 38B has significantly increased during recent years; specially, with economic development of Hai Duong Province and Hung Yen Province that this highway passes through, in future, traffic demands shall be too much With the current condition of the road, it can not satisfy those traffic demands Thus, the need of the rehabilitation of National highway No 38B has been recognized The rehabilitation of National highway No 38B (from Hai Duong City, Km01+000 to Hung Yen Town, Km49+679) is of Road Network improvement Project, Network Improvement Program (IDA Credit No 3845-VN) 1.2 Introduction about Contract NIP/CP-7 National Highway 38B section which is under this Contract begins at the intersection with NH5 in Hai Duong (Km01+000) and ends at Trang Bridge (Km29+800) on the border of Hung Yen and Hai Duong province The total length of this package is 22,067m (this length excludes bridge construction packages constructed by others as described on bidding document)  The Name of the International competition Bidding is: Road Network Improvement Project Network Improvement Program (IDA Credit No 3843-VN) Package: Rehabilitaiton of NH21-2, NH38B-1 and NH38B-2 Contract: NH38B-1 (NIP/CP-7: Hai Duong – Trang Bridge section     The Borrower is: The Government of the Socialist Republic of Viet Nam The Employer is: Minitry of Transport Excuting Agency: Project Management Unit 18 Location of Construction: Hai Duong province LEGAL BASIS FOR DETAILED DESIGN Decision of the Prime Miniter No 1245/CP-CN dated 16 September, 2003 approving the Implementation of Road Net Works Improvement Program; Decision of the Minister of Transport Ministry No 3056/QD-BGTVT dated 17 October, 2003; Decision of the Minister of Transport Ministry No 579/QD-BGTVT dated 10 March, 2004; MOT-TCQM announcement No.1256/CGD-TD1 dated 29 April, 2004; Decision of the Minister of Transport Ministry No.4746/QD-BGTVT dated 13 September, 2004 Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section CHAPTER II: NATURAL CONDITIONS OF THE PROJECTED LOCATION GEOGRAPHY STATION National Highway 38B section which is under this Contract begins at the intersection with NH5 in Hai Duong (Km01+000) and ends at Trang Bridge (Km29+800) on the border of Hai Duong province; passes through urban area of Hai Duong city and Gia Loc town and Thanh Mien town The total length of this package is 22,067m MATERIAL SOURCE 2.1 Soils, sands, stones The Contractor surveyed contract and three material yard whose reserve are very much and materials on there are guaranteed about quality, were recognized Almost materials are exploited at Kim Mon mine in Hai Duong province; besides, sands are provided at Viet Tri mine in Phu Tho province Materials are transported by waterway on Thai Binh river, Luoc river, to material yards Transport material from material yard to construction areas easily by highway 2.1.1.Bai Neo material yard Location: with from Hai Duong to Hung Yen direction, it is on the left, near Cong Neo bridge (Km22+200 – Km25+500) in Thanh Mien town Exploited conditions: material yard is nearby site; so that transportation is advantage Quality of materials: The Contractor ensures that quality of materials to conform to the Specifications Supply: material yard have area about 10800 m (120mx90m), it is able to supply 300 – 400 m3/day Some photos about Bai Neo material yard: (Photo 1) Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section (Photo 2) (Photo 3) Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section (Photo 4) 2.1.2.Material yard No.1 on the bank of Thai Binh river Location: Material yard No.1 on the bank of Thai Binh river that is exploited by Nam Cuong company, is located in Hai Duong city, is far from start point about 3.5km Exploited conditions: material yard is nearby site, is far from inhabitant area; so that transportation is advantage Quality of materials: The Contractor ensures that quality of materials to conform to the Specifications Supply: material yard have area about 16000 m (200mx80m), it is able to supply 400 – 550 m3/day Some photos about Thai Binh river material yard: Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section (Photo 5) (Photo 6) Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section (Photo 7) 2.1.3.Material yard No.2 on the bank of Thai Binh river Location: Material yard is on the bank of Thai Binh river and is near Phu Luong bridge ; it is far from start point about 6.5km Exploited conditions: distance between material yard and start point is about 6.5 km, traffic from material yard to site is advantage cause it is placed by National Highway No.5 Quality of materials: The Contractor ensures that quality of materials to conform to the Specifications Supply: material yard is able to provide much quantity 2.2 Cements and Steels Cements will be purchased at big agents in Hanoi City and brought to the Site by trucks; Steels will be purchased at Thai Nguyen Iron Factory in Thai Nguyen province and transported to the Site by trucks; Beside that, cements and steels will be purchased at big agents in Hai Duong what provide accepted quality of materials and have enough quantity for construction 2.3 Bitumen Bitumen will be purchased at Trameco Company in Van Dien town – Hanoi City and will be delivered to the asphalt concrete mixing plant of the Contractor 2.4 Corrugated Iron and Road Signs They will be purchase in Hanoi and conveyed to the Site by trucks 2.5 Oil and Gasoline Oil and gasoline will be supplied by directly signing with Petrolimex agents in towns and Hai Duong city The yard containing oil, gasoline shall be located far from residential areas, lively places of engineers, workers in the Site 2.6 Electricity Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section To provide for all activities of the Site, the Contractor shall ask for the electricity supply from the existing 110 KV high voltage line of the electricity office of Hai Duong province to provide for production For fear of electricity cut-off, the Contractor shall prepare standby generators 2.7 Other materials Other materials will be purchase in towns: Thanh Mien town, Gia Loc town and Hai Duong city or agents of vicinity provinces Other accidental materials will be taken in locations near to the Site The material transportation solution of the Contractor is predominantly implemented through highway All materials prior to using will be tested, due compliance with requirements in the Volume - Specifications of the Bidding Documents as specified by the Engineer and the Employer Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section CHAPTER III: EXISTING NATIONAL HIGHWAY NO.38B CONDITIONS AND DESIGN SOLUTIONS GENERAL EXISTING NH38B Almost, road goes along a river; there are many ponds and inhabitant areas on two sides of road; Almost, existing bridges are placed inhabitant area There are many kinds of culvert on project location, like as: brick culverts, concrete culverts, inlet submerged culverts, outlet submerged culverts, inlet unsubmerged culverts; The existing alignment is flat and straight The pavement width varies between 3.5m – 7.5m wide From Km01+000 to Km04+200, existing pavement has been overlayed with 5cm Asphalt Concrete and is still in good condition Between Km04+200 and Km25+000 and between Km27+500 and Km29+800 pavement is 20 – 30cm bituminous macadam on granular formation These sections are in poor condition Between Km25+000 and Km27+500 a 30cm bituminous macadam layer over a granular foundation exists and is in good condition The existiong alignment crosses short and medium length bridges which generally require repairing or replacement LIST OF TECHNICAL SPECIFICATIONS Specification for design and survey No Specification description Code Specification for terrain map survey Specification for road survey 22 TCN 263 - 2000 Specification for geologic exploratory drilling 22 TCN 259 - 2000 Specification for road-bed on weak soil survey 22 TCN 262 - 2000 Geological investigation for designation and construction pile 20 TCN 160-87 Highway Specification for design TCVN 4054 - 98 Specification for the design of flexible pavements 22 TCN 211 - 93 Specification for road design 22 TCN-273—01 Specification for the design of flexible pavements 10 Freeway/ Expressway – Criteria for design 11 Concrete pavement design 22 TCN-223-95 12 Specification for bridge design 22 TCN 272-01 13 Geotextiles for road-bed on weak soil 22 TCN 248-98 14 Specification for CPT and CPTU test 22 TCN 317-04 15 Road signal regulation 22 TCN 237 - 01 Part I: General Introdution About The Project And The Contract Package 96 TCN 43-90 22 TCN-274-01 TCVN 5729-1997 Page 10 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section 16 Load and impact TCVN 2737-95 17 Pile foundation Specification for design 20 TCN 21 – 86 18 Rubber elastic bearing with steel plate AASHTO M251-92 19 Specification for rubber (elastic) expansion joint AASHTO M297-96 AASHTO M183-96 20 Specification for design man-made light outside civil construction 21 Specification for design light on road, street and square 22 Standard of electricit equipment 23 Specification for calculating properties of flooding flow 24 25 Specification for evaluation the influence of environment when doing feasibility study and design transport construction Specification for design of construction arrangement and construction 20 TCN 95-83 TCXDVN 259:2001 19 TCN 19; 11 TCN 20 TCVN 4756-89 22 TCN 220 - 95 22 TCN 242-98 TCVN 4252-88 DESIGN SOLUTIONS 3.1 Road class and cross section The Project road is designed as a Class III road with a design speed of 60 km/hr The cross section of the roadway is as follows: Normal section Broadbed = 2x0.5 (unsealed shoulder)+ 2x2.0 (sealed shoulder)+ 2x3.5 (traffic lane) = 12m Normal Residential Area Broadbed = 2x3.5 (sealed shoulder) + 2x3.5 (traffic lane) = 14m Bridge width = Normal section + 2x0.5m (parapet) = 13m (except residential areas where cross section matches formation) Scope of Section from Hai Duong City to Trang Bridge Start point (Km01+000) at the intersection in Hai Duong City; End point (Km 29+800) at Trang Bridge The total length of this package is 22.067m (this length excludes bridge construction packages constructed by others as shown in Bidding document) 3.1.1.Alignment The alignment basically follows the existing roas of NH38B and is designed to: Minimise compensation for removal of houses; Minimise disruption to public facilities such as transformers, electric lines and poles, etc; Mitigate adverse affects on the houses on roadsides along residential areas; Not encroach on irrigation canals along the road; and Maximise the use of the existing pavement and culverts along the existing road alignment where feasible The alignment is controlled in other locations by the following constraints: The locations of new and existing bridges; and Urban areas Part I: General Introdution About The Project And The Contract Package Page 11 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section Two bypasses of urban areas are included in the project: Quang Minh Bypass (Km20+500 – Km22+000); Cao Thang Bypass (Km28+700 – Km29+400) Section from Km09+640 – Km10+002.62 (at intersection of Gia Loc town) has been approved by Hai Duong People’s committee to build as the new section according to the Decision No.3636/QD-UBND dated 20 October, 2006 3.1.2.Cross section The dimensions of common cross section are as follow: Travelled way: 2x3.5 = 7.0m; Paved shoulders: 2x2.0 = 4.0m; Unpaved shoulders: 2x0.5 = 1.0m; Total formation width: = 12.0m; Further more details, refer in the Bidding documents 3.2 Pavement Pavement thickness is designed on the basis of the estimated traffic volume, equivalent single axles load and construction materials used for pavement and roadbed The overlay design of the existing pavement is dependent on the design traffic loading and strength of the existing pavement Result of calculations on pavement thicknesses for this package is summarized in the Bidding documents 3.3 Embankment design Project regarding geotechnical engineering study for a roadway embankment is as follows: Minimum factor of safety for the roadway embankment against sliding failure is 1.2 or more during construction stage and 1.4 or more at completion of the roadway embankment using Bishop method; and Allowable post construction settlements are 20cm or less between piled abutments and approach embankments, 30cm or less for culvert, and 40cm or less for roadway and approach embankments, 30cm or less for culvert, and 40cm or less for roadway portions Geo-technical analysis was implemented based on the results of soil investigation The results of soft soil improment analysis are summarized in the following table Table: summary of Soil Treatment Realignment PVD, 1.3m, H = 8m – 15m 2030 M PVD, 1.3m, H = 6m – 8m 2330 M Sand replacement, H = 2m 6797 M Widen Snd replacemet, H = 2.5m 1177 M Bamboo @0.25m, H = 3m 850 M No treatment 8392 M Total 20726 M 3.4 Intersection There are six intersections in total in this section All intersections are designed appropriately to safely requirements and other technical criteria The intersections are located at locations as follows: Km01+000 – Tam Giang – Hai Duong; Km03+700 – Hai Duong roundabout; Km20+600 – Start Quang Minh bypass; Km21+900 – End Quang Minh by pass; Km28+800 – Start Cao Thang bypass; Km29+350 – End Cao Thang bypass These intersections are describled in Section of this Report 3.5 Drainage design A total of forty-one culverts are newly constructed in this section, of which ten are box culverts and thirty-one are pipe culverts Locations and sizes of these structures were agreed with local authorities; Part I: General Introdution About The Project And The Contract Package Page 12 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section Ten existing pipe culverts and two box culverts will be extended to accommodate the new cross section In urban sections, kerb and gutter, side entry pits and 75cm piped drainage system has been designed 3.6 Bridge Four bridges are included in this package: Chua So bridge (br), Duc Xuong br, Bong br and Cao Ly br Design of these bridges is summarized below 3.6.1.Chua So bridge Location: Centre of Chua So Bridge at station Km11+725, total width B = 13m Superstructure: Simple span precast RC slab, length 7.50m (f’c = 30MPa), 13no beams of 0.3m height in cross section; cast in place RC deck slab of 0.15m thickness Substructure: RC abutment (f’c = 30MPa) on Reinforced Precast Concrete Piles of 0.3mx0.3m (f’c = 30MPa), consisting of 32no piles, expected length of piles: 40.0m Some photos about Chua So bridge (Photo 8) Part I: General Introdution About The Project And The Contract Package Page 13 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section (Photo 9) 3.6.2.Duc Xuong bridge Location: Centre of Duc Xuong Bridge at station Km19+460, total width B = 13m Superstructure: Simple span precast RC slab, length 6.0m (f’c = 30MPa), 13no beams of 0.3m height in cross section; cast in place RC deck slab of 0.15m thickness Substructure: RC abutment (f’c = 30MPa) on Reinforced Precast Concrete Piles of 0.3mx0.3m (f’c = 30MPa), consisting of 24no piles, expected length of piles: 30.0m Some photos about Duc Xuong bridge - (Photo 10) Part I: General Introdution About The Project And The Contract Package Page 14 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section 3.6.3.Bong bridge Location: Centre of Bong Bridge at station Km11+725, total width B = 2.0+14.0+2.0 = 18m Superstructure: Simple span precast RC slab, span 6.50m (f’c = 30MPa), 18no beams of 0.3m height in cross section; cast in place RC deck slab of 0.15m thickness Substructure: RC abutment (f’c = 30MPa) on Reinforced Precast Concrete Piles of 0.3mx0.3m (f’c = 30MPa), consisting of 40no piles, expected length of piles: 30.0m Some photos about Bong bridge (Photo 11) Part I: General Introdution About The Project And The Contract Package Page 15 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section (Photo 12) (Photo 13) (Photo 14) Part I: General Introdution About The Project And The Contract Package Page 16 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section 3.6.4.Cao Ly bridge Location: Centre of Bong Bridge at station Km28+100, total width B = 13m, pedestrian path has different level with the carriageway level Superstructure: Simple span precast RC slab, length 6.0m (f’c = 30MPa), 13no beams of 0.3m height in cross section; cast in place RC deck slab of 0.15m thickness Substructure: RC abutment (f’c = 30MPa) on Reinforced Precast Concrete Piles of 0.3mx0.3m (f’c = 30MPa), consisting of 24no piles, expected length of piles: 22.0m Some photos about Cao Ly bridge (Photo 15) (Photo 16) Part I: General Introdution About The Project And The Contract Package Page 17 of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section 3.7 Traffic safety The traffic safety design was considered for all sections from Hai Duong city to Trang bridge Traffic signs, pavement marking, guideposts and marker posts and guardrail were designed in accordance with the standard given in Road Traffic Sign 22TCN 237-01 and the findings of the Road Safety Audit; Traffic sign layouts have been designed at all intersections, curves with small radius, schools markets, petrol supply stations Reflective pavement marking is designed for full length of the section and at all intersection Guideposts will be provided at outer side of curves with small radius and high embankment sections Guardrail will be provided at all bridge aproaches Part I: General Introdution About The Project And The Contract Package Page 18 of 18 ...Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section PART I GENERAL INTRODUCTION ABOUT THE PROJECT AND THE CONTRACT PACKAGE Part I: General Introdution... The alignment is controlled in other locations by the following constraints: The locations of new and existing bridges; and Urban areas Part I: General Introdution About The Project And The Contract. .. Electricity Part I: General Introdution About The Project And The Contract Package Page of 18 Rehabilitation of National Highway No 38B IDA Credit No 3843 – VN Hai Duong – Trang Bridge Section