double wall pipe pile in sand
Behavior of Pipe Piles in Sand : Plugging and Pore-Water Pressure Generation During Installation and Loading pptx
Ngày tải lên :
31/03/2014, 16:20
... plug length increased with increasing relative density of insitu sands during driving and decreased with increasing relative density during jacking Also, during installation, the jacked piles exhibited ... place during pile driving 3.3.2 Excess Pore Pressures in Sands The soils surrounding piles driven in sand are subject to cyclic strain and an increase in total stress, like piles driven in clay ... M.W.: Skin Friction Distribution on Piles in Sand In: Proc Civil Engineering in The Oceans V, pp 783–797 ASCE (1992) Kishida, H.: The Ultimate Bearing Capacity of Pipe Piles in Sand In: Proc...
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Behavior of Pipe Piles in Sand potx
Ngày tải lên :
28/06/2014, 22:20
... plug length increased with increasing relative density of insitu sands during driving and decreased with increasing relative density during jacking Also, during installation, the jacked piles exhibited ... place during pile driving 3.3.2 Excess Pore Pressures in Sands The soils surrounding piles driven in sand are subject to cyclic strain and an increase in total stress, like piles driven in clay ... M.W.: Skin Friction Distribution on Piles in Sand In: Proc Civil Engineering in The Oceans V, pp 783–797 ASCE (1992) Kishida, H.: The Ultimate Bearing Capacity of Pipe Piles in Sand In: Proc...
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Base Capacity of OpenEnded Steel Pipe Piles in Sand
Ngày tải lên :
13/08/2015, 10:37
... concrete pipe piles installed by jacking and driving (Qin 2008) In this connection, the in uence of the installation method on plug capacity can preliminarily be accounted for through the index PLR in ... pile inner diameter, and the pile embedment The major effects of these factors can be summarized as follows: Piles installed in dense sand tend to plug more than those in loose sand, indicating ... China Construction Industry Press, Beijing (in Chinese) China Ministry of Railways (CMR) (1993) “Technical practice for cone penetration test.” TBJ37, China Ministry of Railways, Beijing (in...
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Comparing CPT and pile base resistance in sand
Ngày tải lên :
13/08/2015, 10:36
... Civil Engineers— Geotechnical Engineering, 1997, 125, No 2, 5–70 LINGS M L Predicting the shaft resistance of driven preformed piles in sand Proceedings of the Institution of Civil Engineers—Geotechnical ... YEN T L, LIN H., CHIN C.-T and WANG R.-F Interpretation of instrumented driven steel pipe piles Proceedings of a Congress on Foundation Engineering: Current Principles and Practice, Illinois, 1989, ... of piles in sand ASCE Journal of Geotechnical Engineering, 1993, 119, No 12, 1952–1973 LEHANE B M., JARDINE R J., BOND A J and FRANK R Mechanisms of shaft friction in sand from instrumented pile...
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Field measurements of CPT and pile base resistance in sand
Ngày tải lên :
13/08/2015, 10:38
... using 98 pile load tests Proc Int Symposium on Penetration Testing, ISOPT-1, Orlando 2:687-697 Briaud J-L, Tucker L.M & Ng E 1989 Axially loaded pile group and a single pile in sand Proc 12th International ... 1990 Computing axial pile capacity in sands for offshore conditions Marine Geotechnology 9:61-72 Lehane B.M 1992 Experimental investigations of pile behaviour using instrumented field piles PhD ... Engineering, Moscow (1):645-650 Winterkorn, A.F & Fang, S.Y 1975 Foundation Engineering Handbook, Van Nostrand Reinhold Co New York Yen T.L, Lin H, Chin C-T & Wang R-F 1989 Interpretation of instrumented...
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Báo cáo hóa học: "Electrochemical properties of double wall carbon nanotube electrodes" pptx
Ngày tải lên :
22/06/2014, 22:20
... the one found in the multiwall carbon nanotubes, however, double wall nanotubes provide much smaller 93 diameter Double wall carbon nanotubes should find a wide range application in area of nanobiosensors ... TEM grid and left to dry in air Results and discussion Double wall carbon nanotubes and their single wall counterparts were characterized by Raman spectroscopy, scanning electron microscopy, ... DWNT and SWNT electrode films Raman spectroscopy The double wall carbon nanotubes and their single wall counterparts were first oxidized by refluxing in nitric acid to produce carboxyl groups at the...
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Summary of doctoral thesis: Improving the efficiency in using double fed induction machine in shaft generator system on shipboards
Ngày tải lên :
02/07/2014, 20:34
... title “Improving the efficiency in using doubly-fed induction machine in shaft generation system on shipboards” to perform the thesis Aims The application of doubly-fed induction machine on power-station ... 1.Working in parallel with the grid of shipboard; 2.Work independently when requiring In the thesis, the authors delve into the ability to work in parallel with the shipboard grid by proposing ... include of: - The doubly-fed induction machine - The control system structure of the doubly-fed induction machine in shaft generator The scope of thesis: Researching the shaft generator working...
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Báo cáo khoa học: "DNA double-strand break induction in Ku80-deficient CHO cells following Boron Neutron Capture Reaction" pot
Ngày tải lên :
09/08/2014, 09:21
... ionizing radiation, and can be repaired by homologous recombination (HR) or non-homologous end joining (NHEJ) in mammalian cells A number of essential proteins, including DNA-dependent protein kinase ... proteins are a component of DNA-dependent protein kinase (DNA-PK), and are involved in the repairing of DNA-DSBs by NHEJ Xrs-5 cells (Ku80 mutant) lack functional Kuprotein, and are defective in ... (Obtained from Dr P Jeggo) were cultured at 37°C in a humidified 5% CO atmosphere in a-minimal essential medium (MEM) supplemented with 10% heat-inactivated calf serum (56°C for 30 min), penicillin...
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báo cáo khoa học: "Nanometric self-assembling peptide layers maintain adult hepatocyte phenotype in sandwich cultures" pot
Ngày tải lên :
11/08/2014, 00:22
... we combined RAD16-I with modified self-assembling peptides containing the integrin-binding sequence RGD, the laminin receptor binding sequence YIG and the heparin binding sequence present in collagen ... Arginine; A = Alanine; D = Aspartic Acid; G = Glycine; Y = Tyrosine; I = Isoleucine; S = Serine) sequence GRGDSP (RGD) from collagen and YIGSR (YIG) from laminin [27,31], which target an integrin ... AcN-GRGDSPGGRADARADARADARADA- Integrin Binding CONH2 YIG AcN-YIGSRGGRADARADARADARADACONH2 Laminin Binding Functional peptide motifs, denoted in bold, are inserted onto the N-terminal of the base sequence...
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a biomedical engineering approach to investigating flow and wall shear stress in contracting lymphatics
Ngày tải lên :
13/11/2014, 11:06
... interstitial fluid driving pressure, now referred to as the extrinsic pump Certainly various factors influencing interstitial pressure play influential roles in the filling of lymphatics to increase flow ... Coté May 2006 Major Subject: Biomedical Engineering iii ABSTRACT A Biomedical Engineering Approach to Investigating Flow and Wall Shear Stress in Contracting Lymphatics (May 2006) James Brandon ... As in the fluorescent technique, you run the risk of the foreign particles you are introducing into the system interfering or altering the flow patterns that occur physiologically by creating...
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FRICTION COEFFICIENTS FOR PILES IN SANDS AND SILTS
Ngày tải lên :
13/08/2015, 10:34
... required into this aspect of interface shear behaviour Pile Design in Sands and Silts The preceding data have the following implications for pile design: The Labenne and Bothkennar instrumented pile ... Buzzard sand (.given by Lemos, 1986), ring-shear interface data for a North Sea glaciomarine sand (Ridley and Jardine, 1992) and the Bothkennar clay-silt ring A predominantly silica sand produced ... but the principal point of interest here is the way in which a~ varied with Trz during pile loading Figure presents a typical plot from one of the Labenne ICP (compression) pile tests, using data...
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ICP design methods for driven piles in sands and clays
Ngày tải lên :
13/08/2015, 10:35
... bearing database in sand .49 5.4.2 Degree of fit for the ICP end bearing method in sand .50 Page 5.5 ICP design methods for driven piles in sands and clays Base resistance in clay ... driven piles in sands and clays Page INTRODUCTION In 1996 the UK Marine Technology Directorate (MTD) published a booklet by Jardine and Chow that summarised a new integrated approach for calculating ... assess pile group and ageing effects in dense sand • Using the above to refine the new approaches for closed-ended piles and extend the design methods to cover open-ended driven piles • Collating...
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The UWA05 method for prediction of axial capacity of driven piles in sand
Ngày tải lên :
13/08/2015, 10:37
... depends on the pile s D/t (diameter to wall thickness) ratio and the FFR value, varying from unity for a pile installed in a fully plugged mode to about 0.08 for a pile installed in coring mode with ... The incremental filling ratio (IFR) is a measure of soil displacement near the tip of a pipe pile and depends on a number of different parameters, including soil layering, pile inner diameter, pile ... piles as the pile length increases The radial effective stress acting on a driven pile increases during pile axial loading and its magnitude (when τf is mobilised and dilation has ceased) increases...
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Some observations of the effects of time on the capacity of piles driven in sand R. J. JARDINE, J. R. STANDING and F. C. CHOW†
Ngày tải lên :
13/08/2015, 10:38
... arching established around the pile shafts during installation.1 Increases in sand shear strength and stiffness with time (ageing) involving the reorientation of sand grains and possible cementing ... du point de vue de la conception des piles et de linterpretation des essais de charge sur le terrain Piles driven in sand can show remarkable increases in their axial shaft capacities in the ... exceeding eight months The single restriking of piles LS and LL (involving 60 mm of incremental penetration) caused less damage than the more comprehensive testing of the short piles, leading to...
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Investigation of the end bearing performance of displacement piles in sand
Ngày tải lên :
13/08/2015, 10:41
... offshore piles worldwide First published in 1969, the code is continually updated to reflect some of the developments in piling engineering However, for piles in sand, it has only undergone some minor ... study into the end bearing performance of displacement piles in sand The research involved careful examination of the existing databases of static load tests in sand, field and centrifuge testing ... (2005) in Figure 2.12 It would inevitably influence the pile performance in both sand and clay Apart from the main theme of this Thesis, the performance of pipe pile in clay was also investigated...
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Punch through of spudcan foundation in sand overlying clay
Ngày tải lên :
13/09/2015, 21:27
... calculating the sand bearing capacity For bearing capacity in sand overlying clay, the review includes existing experimental findings, analytical design models and some recent progresses made in numerical ... bearing capacity in sand Scale effect and progressive failure on bearing capacity in sand 2.1.3 Selection of strength parameter for sand bearing capacity 2.1.4 Summary Bearing capacity in sand ... Spudcan bearing capacity in sand overlying clay 43 45 45 48 2.5 Concluding remarks 51 Chapter 3: Spudcan Bearing Capacity in Sand 3.1 Experimental investigation of spudcan penetration in sand 3.1.1...
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Mechanism and characteristics of photovoltaic responses in sandwiched ferroelectric plzt thin film devices
Ngày tải lên :
14/09/2015, 08:42
... photovoltaics in ferroelectrics, especially in thin films, have still been undergoing investigation, and the underlying physical mechanism of ferroelectric-based photovoltaics is the main focusing point ... value under increasing illumination intensity [56, 57] The properties of illumination intensity dependence of photovoltaic outputs in PLZT thin films are equally consistent with those in bulk ceramics ... formation of an inorganic network containing a liquid phase (gel) Sol-gel process can be used in ceramics manufacturing, as an investment casting material, or as a means of producing thin films of...
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Effects of red blood cell aggregation, hematocrit and tube diameter on wall shear stress in microtubes
Ngày tải lên :
05/10/2015, 18:59
... effective in reducing the WSS in low pseudoshear rates corresponding to venular flows, but insignificant in affecting WSS in high pseudoshear rates corresponding to arteriolar flows However, increased ... pseudoshear rates in microtubes of ID 30 µm (○), 50 µm (∆) and 100 µm (□) in three aggregating mediums (A): in non-aggregating blood suspended in PBS; (B): in normal aggregating blood; (C): in disease ... over pseudoshear rates in microtube of ID 50 µm in three aggregating mediums (A): in nonaggregating medium; (B): in normal aggregating medium; (C): in disease aggregating medium Values are means...
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Overcoming mass transfer barriers in sandwich configuration for primary hepatocytes culture
Ngày tải lên :
27/11/2015, 12:39
... Liver tissue engineering 1.1.1 Overview of tissue engineering The field of tissue engineering, by integrating principles of engineering and life sciences, exploits living cells in a variety of ... of conventional sandwich configuration for primary hepatocytes culture combining principles and technologies from tissue engineering, chemistry and bioreactor engineering Sandwiching hepatocytes ... functions in sandwich culture Albumin accumulation in the intra-sandwich environment resulted in reduced hepatocytes functions in static culture To increase the mass transfer efficacy (indicated...
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