›› 2007, Vol. 28 ›› Issue (10): 2149-2154.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on pile-net composite foundation of high-speed railway on soft soils

XU Lin-rong1, NIU Jian-dong1, LÜ Da-wei1, GU Shao-fu2, CHEN Tao3   

  1. 1. School of Civil and Architectural Engineering, Central South Univ., Changsha 410075, China; 2. Monitoring Center of Guangdong Traffic Group, Guangzhou 510800, China; 3. Fourth Survey and Design Institute of China Railway, Wuhan 430063, China
  • Received:2005-10-31 Online:2007-10-10 Published:2013-10-15

PDF (PC)

1361

Abstract: Pile-net composite foundation has been emerged as an effective alternative successfully adopted worldwide to solve many geotechnical problems. It combines the advantages of the horizontal reinforcement layer and the vertical reinforcement. Related to pile-net-soil cooperative function, pile-net composite foundation is so complicated that designed mainly by experiences, which limits its application. It is very difficult for pile-net composite foundation mechanism to be researched by theoretical analysis. General model test and soil centrifuge modeling test can only solve some problems qualitatively; and some important technical questions need in-situ solution. With in-situ test of a certain high-speed railway trial embankment, pile-net composite foundation has been careful studied in settlement and lateral displacement and contact pressure and the stress and strain of geogrid aspects. The change process in pile-soil stress ratio and the bearing properties of geogrid and settlement have been analyzed. Systematic researches on soft embankment settlement laws, the pile-net composite foundation bearing mechanism and stress transmission mechanism have been performed. How net mat made by geogrid and mat impacts settlement control and how it is designed have been discussed.

Key words: high-speed railway, soft soils, pile, geosynthetics, pile-net composite foundation

CLC Number: 

  • TU 413.6+2
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] ZHANG Zhi-guo, ZHANG Rui, HUANG Mao-song, GONG Jian-fei, . Optimization analysis of pile group foundation based on differential settlement control and axial stiffness under vertical loads [J]. Rock and Soil Mechanics, 2019, 40(6): 2354-2368.
[2] SHI Li, WANG Hui-ping, SUN Hong-lei, PAN Xiao-dong, . Approximate analytical solution on vibrations of saturated ground induced by pile foundations [J]. Rock and Soil Mechanics, 2019, 40(5): 1750-1760.
[3] HUANG Sheng-gen, SHEN Jia-hong, LI Meng, . Reliability analysis of bearing capacity of post-grouted bored piles [J]. Rock and Soil Mechanics, 2019, 40(5): 1977-1982.
[4] TANG Xiao-wu, YANG Xiao-qiu, YU Yue. Analytical solutions to drained consolidation of porous pipe pile [J]. Rock and Soil Mechanics, 2019, 40(4): 1248-1254.
[5] YIN Feng, ZHOU Hang, LIU Han-long, CHU Jian, . Experimental investigation on dynamic characteristics of XCC pile-geogrid composite foundation under static and dynamic loads of vehicles [J]. Rock and Soil Mechanics, 2019, 40(4): 1324-1330.
[6] ZHANG Xun, HUANG Mao-song, HU Zhi-ping, . Model tests on cumulative deformation characteristics of a single pile subjected to lateral cyclic loading in sand [J]. Rock and Soil Mechanics, 2019, 40(3): 933-941.
[7] WEI Shao-wei, SUI Yan-yang, YANG Jian-min, . Model tests on anti-sliding mechanism of circular and rectangular cross section anti-sliding piles [J]. Rock and Soil Mechanics, 2019, 40(3): 951-961.
[8] CAI Qi-peng, GAN Gang-lu, NG C. W. W., CHEN Xing-xin, XIAO Zhao-yun, . Study on failure mechanism and setback distance of a pile group in sand subjected to normal faulting [J]. Rock and Soil Mechanics, 2019, 40(3): 1067-1075.
[9] LI Lin, LI Jing-pei, SUN De-an, GONG Wei-bing , . Nonlinear load-settlement analysis of pile groups considering pile installation effects [J]. Rock and Soil Mechanics, 2019, 40(2): 668-677.
[10] FEI Kang, DAI Di, HONG Wei, . A simplified method for working performance analysis of single energy piles [J]. Rock and Soil Mechanics, 2019, 40(1): 70-80.
[11] LEI Da, JIANG Guan-lu, SUN Sheng-jie, QI Zhi-hui, LI An-hong, . Study of bridge foundation on slope reinforced by anti-slide piles on shaking table [J]. Rock and Soil Mechanics, 2019, 40(1): 127-134.
[12] GUO Shuai-jie, SONG Xu-guo, . Jacking resistance evaluation method of prefabricated diaphragm wall based on laboratory experiment [J]. Rock and Soil Mechanics, 2019, 40(1): 269-274.
[13] ZHENG Jun-jie, LÜ Si-qi, CAO Wen-zhao, JING Dan, . Numerical simulation of composite rigid-flexible pile-supported retaining wall under the action of high-filled expansive soil [J]. Rock and Soil Mechanics, 2019, 40(1): 395-402.
[14] YANG Su-chun, ZHANG Ming-yi, WANG Yong-hong, SANG Song-kui, MIAO De-zi. Field test on pile tip resistance of closed-end jacked pipe pile penetrating into layered foundation [J]. Rock and Soil Mechanics, 2018, 39(S2): 91-99.
[15] MA Xian-chun, LUO Gang, DENG Jian-hui, SHANGGUAN Li, . Study of anchorage depth of anti-sliding piles for steep-sliding accumulation landslides [J]. Rock and Soil Mechanics, 2018, 39(S2): 157-168.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] MA Qing，ZHAO Jun-hai，WEI Xue-ying. Investigation of rock resistant coefficient in rocks around tunnel based on unified strength theory[J]. , 2009, 30(11): 3393 -3398 .
[2] CUI Kai, CHEN Wen-wu, ZHANG Jing-ke, HAN Wen-feng, LIANG Shou-yun. Relationships between microstructure parameters and wind erosion rate of multivariate layered soil in slope[J]. , 2009, 30(9): 2741 -2746 .
[3] LI Jia-gui, CHEN Zheng-han, HUANG Xue-feng, LI Jia. In-site test on earth pressure and saturating collapse test for unsaturated loess Q3 on high slope[J]. , 2010, 31(2): 433 -440 .
[4] JIE Ying, TANG Xiao-wei , LUAN Mao-tian. Finite-element free Galerkin coupling method for sand liquefaction-induced deformation[J]. , 2010, 31(8): 2643 -2647 .
[5] ZHANG Jian-xin, LIU Shuang-ju, ZHOU Jia-bin. Analysis of influence of foundation pits excavation unloading by top-down method on engineering structures[J]. , 2010, 31(S2): 218 -223 .
[6] BAI Bing, LI Chun-feng. Elastoplastic dynamic responses of close parallel metro tunnels to vibration loading[J]. , 2009, 30(1): 123 -128 .
[7] XUE Yun-liang, LI Shu-lin, LIN Feng, XU Hong-bin. Study of damage constitutive model of SFRC considering effect of damage threshold[J]. , 2009, 30(7): 1987 -1992 .
[8] LI Guo-yu，YU Wen-bing，MA Wei，QI Ji-lin，JIN Hui-jun，SHENG Yu. Experimental study of characteristics of frost and salt heaves of saline highway foundation soils in seasonally frozen regions in Gansu Province[J]. , 2009, 30(8): 2276 -2280 .
[9] ZHANG Jun-hui. Analysis of deformation behavior of expressway widening engineering under different foundation treatments[J]. , 2011, 32(4): 1216 -1222 .
[10] WANG Liang-qing, P.H.S.W. Kulatilake, TANG Hui-ming, LIANG Ye , WU Qiong ,. Kinematic analyses of sliding and toppling failure of double free face rock mass slopes[J]. , 2011, 32(S1): 72 -77 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd