›› 2011, Vol. 32 ›› Issue (S1): 526-0531.

• Geotechnical Engineering • Previous Articles     Next Articles

Study of wave type asymmetry settlement and its mechanism of soft soil roadbed

SUN Li-qiang1, YAN Shu-wang1, XU Yu2   

  1. 1. School of Civil Engineering, Tianjin University, Tianjin, 300072, China; 2. Tianjin Architecture Design Institute, Tianjin 300384, China
  • Received:2011-01-14 Online:2011-05-15 Published:2011-05-16

PDF (Chinese)

740

Abstract: The deformation is the dominant factor of the quality of the road constructed on the soft soil foundation. Tianjin Dongjiang port is located on the hydraulic filled soil foundation which is improved by using vacuum preloading method. Roads in this area often suffer wave type asymmetry settlement, which seriously affects the usage of the road and causes damage to both vehicles and human being. It is found that the initial wave asymmetry deformation of the road on very soft soil foundation is usually existing and will be developing continuously under the traffic load. The mechanism of the wavy failure of the road is discussed by establishing a mechanical model. The method of using geogrids to reduce the asymmetry deformation is proposed; the reinforcing effect is analyzed using finite element method.

Key words: soft subsoil foundation, nonuniform settlement, wave type deformation, geogrids, soil improvement

CLC Number: 

  • O 319.56
[1] WANG He , YANG Guang-qing , XIONG Bao-lin , WU Lian-hai , LIU Hua-bei，. An experimental study of the structural behavior of reinforced soil retaining wall with concrete-block panel [J]. , 2016, 37(2): 487-498.
[2] JIA Min-cai , QIANG Xiao , YE Jian-zhong,. Comparison study of reinforcement effect of HDPE/PET geogrids in fill embankment [J]. , 2015, 36(S1): 491-495.
[3] QIAN Chun-xiang ，WANG An-hui ，WANG Xin , . Advances of soil improvement with bio-grouting [J]. , 2015, 36(6): 1537-1548.
[4] ZHANG Xiao-ming ，DING Shu-wen ，CAI Chong-fa ，LIU Jian-bo , . Mechanism of effects of wetting-drying on nonuniform settlement and caved wall collapse in slope disintegration erosion area [J]. , 2013, 34(S2): 299-305.
[5] LI Fu-lin，PENG Fang-le，KONGKITKUL W.，TATSUOKA F.. Finite element analyses of creep behaviors of non-reinforced and geogrid-reinforced sands [J]. , 2011, 32(4): 1200-1204.
[6] DAI Hong-jun, LIU Xin-liang, REN Zhi-jun, WEI Hua. Prototype testing study of pile-net composite foundation of circular coal yard [J]. , 2011, 32(2): 487-494.
[7] WEN Shi-qing , LIU Han-long , CHEN Yu-min. Analysis of load transfer characteristics of single grouted gravel pile [J]. , 2011, 32(12): 3637-3641.
[8] XING Shuang ，SUZUKI Teruyuki ，LI Yue-bing ，HAO Dong-xue. Application of replacement method to preventing frost heave damage of geogrids [J]. , 2011, 32(11): 3404-3408.
[9] ZHANG Meng-xi, LIN Qing-song, LIU Fei-yu. Tensile experiments of geogrids under cyclic loading [J]. , 2010, 31(7): 2024-2029.
[10] CHEN Rong，LUAN Mao-tian，ZHAO Wei，XU Xiao-yan，HAO Dong-xue. Research on pull-out test and frictional resistance characteristic of geogrids [J]. , 2009, 30(4): 960-964.
[11] LIU Wen-bai，ZHOU Jian. Experimental research on interface friction of geogrids and soil [J]. , 2009, 30(4): 965-970.
[12] GUO Jun-hui, CHEN Wei-guo, ZHANG Bin. Research on creep property of geogrids at a low temperature [J]. , 2009, 30(10): 3009-3012.
[13] YANG Guang-qing, ZHOU Yi-tao, ZHOU Qiao-yong, XUE Xiao-hui. Experimental research on geogrid reinforced earth retaining wall [J]. , 2009, 30(1): 206-210.
[14] YANG Guang-qing, PANG Wei, Lü Peng, ZHOU Qiao-yong. Experimental study of tensile properties of geogrids [J]. , 2008, 29(9): 2387-2391.
[15] LI Zhi-yong . Study on reinforced mechanism and laid parameters of steep slope of highway embankment reinforced with geogrids [J]. , 2008, 29(4): 925-930.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] XIANG Tian-bing, FENG Xia-ting, CHEN Bing-rui, JIANG Quan, ZHANG Chuan-qing. Rock failure mechanism and true triaxial experimental study of specimens with single structural plane under three-dimensional stress[J]. , 2009, 30(10): 2908 -2916 .
[2] YANG Guang, SUN Xun, YU Yu-zhen, ZHANG Bing-yin. Experimental study of mechanical behavior of a coarse-grained material under various stress paths[J]. , 2010, 31(4): 1118 -1122 .
[3] ZHANG Chang-guang，ZHANG Qing-he，ZHAO Jun-hai. Unified solutions of shear strength and earth pressure for unsaturated soils[J]. , 2010, 31(6): 1871 -1876 .
[4] YANG Tian-hong, CHEN Shi-kuo, ZHU Wan-cheng, LIU Hong-lei. Coupled model of gas-solid in coal seams based on dynamic process of pressure relief and gas drainage[J]. , 2010, 31(7): 2247 -2252 .
[5] HU Xiu-hong，WU Fa-quan. Research on two-parameter negative exponential distribution of discontinuity spacings in rock mass[J]. , 2009, 30(8): 2353 -2358 .
[6] LI Wei-chao, XIONG Ju-hua, YANG Min. Improved method for calculating anti-overturning safety factor of cement-soil retaining wall in layered soil[J]. , 2011, 32(8): 2435 -2440 .
[7] ZHANG Gui-min , LI Yin-ping , SHI Xi-lin , YANG Chun-he , WANG Li-juan. Research on a model material preparation method for alternate layered rock mass and preliminary experiment[J]. , 2011, 32(S2): 284 -289 .
[8] WANG Wei LI Xiao-chun LI Qiang SHI Lu WANG Ying BAI Bing. Small size in-situ transient pulse permeability measurement system and its experimental research[J]. , 2011, 32(10): 3185 -3189 .
[9] HU Cun, LIU Hai-xiao, HUANG Wei. Damage-dependent bounding surface model for cyclic degradation of saturated clay[J]. , 2012, 33(2): 459 -466 .
[10] LI Shu-cai , ZHAO Yan , XU Bang-shu , LI Li-ping , LIU Qin , WANG Yu-kui . Study of determining permeability coefficient in water inrush numerical calculation of subsea tunnel[J]. , 2012, 33(5): 1497 -1504 .
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