›› 2013, Vol. 34 ›› Issue (S2): 1-17.

• Fundamental Theroy and Experimental Research •     Next Articles

Experimental investigation on creep behavior of soft clays: Review and development

YIN Zhen-yu1，ZHU Qi-yin1，ZHU Jun-gao2   

  1. 1. Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China; 2. Geotechnical Research Institute, Hohai University, Nanjing 210098, China
  • Received:2013-04-27 Online:2013-11-11 Published:2013-11-19

PDF (Chinese)

2005

Abstract: Extensive laboratory tests and field observations show that soft clay exhibits long-term deformation. For further understanding of the creep characteristics of soft clay, the mechanism of creep is first discussed from the microscopic physicochemical viewpoint. Then, the evolution of second compression coefficient and its determination under 1D condition, triaxial creep characteristics under drained and undrained conditions, long-term shear strength, and the creep characteristics under complex stress conditions are analyzed. The relevance of creep characteristics to strain-rate and strain relaxation characteristics under both 1D and 3D conditions is discussed. Finally, some new development of the creep characteristics of soft clay are presented in three aspects: the relevance of second compression coefficient to microstructure, accurate description of nonlinear creep, and the stress-dilatancy during drained and undrained creep.

Key words: soft clay, creep, secondary consolidation, stress-dilatancy, microstructure

CLC Number: 

  • TU 443
[1] SONG Yi-min, ZHANG Yue, XU Hai-liang, WANG Ya-fei, HE Zhi-jie. Study on creep-slip and stick-slip deformation evolution of rock based on non-uniform characteristics [J]. Rock and Soil Mechanics, 2020, 41(2): 363-371.
[2] CHEN Wei-zhong, LI Fan-fan, LEI Jiang, YU Hong-dan, MA Yong-shang, . Study on creep characteristics of claystone under thermo-hydro-mechanical coupling [J]. Rock and Soil Mechanics, 2020, 41(2): 379-388.
[3] ZHANG Feng-rui, JIANG An-nan, YANG Xiu-rong, SHEN Fa-yi. Experimental and model research on shear creep of granite under freeze-thaw cycles [J]. Rock and Soil Mechanics, 2020, 41(2): 509-519.
[4] WANG Li-ye, ZHOU Feng-xi, QIN Hu, . Fractional creep model and experimental study of saturated saline soil [J]. Rock and Soil Mechanics, 2020, 41(2): 543-551.
[5] ZHANG Shan-kai, LENG Xian-lun, SHENG Qian, . Study of water swelling and softening characteristics of expansive rock [J]. Rock and Soil Mechanics, 2020, 41(2): 561-570.
[6] SUN Hong, SONG Chun-yu, TENG Mu-wei, GE Xiu-run. Pore evolution characteristics of soft clay under loading [J]. Rock and Soil Mechanics, 2020, 41(1): 141-146.
[7] LEI Hua-yang, HU Yao, LEI Shuang-hua, QI Zi-yang, XU Ying-gang, . Analysis of microstructure characteristics of air-booster vacuum preloading for ultra-soft dredger fills [J]. Rock and Soil Mechanics, 2019, 40(S1): 32-40.
[8] DAI Guo-liang, ZHU Wen-bo, GUO Jing, GONG Wei-ming, ZHAO Xue-liang, . Experiments on vertical uplift bearing capacity of suction caisson foundation in soft clay [J]. Rock and Soil Mechanics, 2019, 40(S1): 119-126.
[9] ZHANG Zhi-guo, LI Sheng-nan, ZHANG Cheng-ping, WANG Zhi-wei, . Analysis of stratum deformation and lining response induced by shield construction considering influences of underground water level rise and fall [J]. Rock and Soil Mechanics, 2019, 40(S1): 281-296.
[10] YE Guan-bao, ZHENG Wen-qiang, ZHANG Zhen, . Investigation on distribution of negative friction of frictional piles in large filling sites [J]. Rock and Soil Mechanics, 2019, 40(S1): 440-448.
[11] ZHAO Bo, ZHANG Guang-qing, TANG Mei-rong, ZHUANG Jian-man, LIN Can-kun, . Mechanism of the effect of long-term water injection on mechanical properties of tight sandstone [J]. Rock and Soil Mechanics, 2019, 40(9): 3344-3350.
[12] LEI Jiang, CHEN Wei-zhong, LI Fan-fan, YU Hong-dan, MA Yong-shang, XIE Hua-dong, WANG Fu-gang, . Mechanical properties of surrounding rock in diversion tunnel of water diversion project from Hongyan River to Shitou River [J]. Rock and Soil Mechanics, 2019, 40(9): 3435-3446.
[13] DENG Hua-feng, ZHI Yong-yan, DUAN Ling-ling, PAN Deng, LI Jian-lin. Mechanical properties of sandstone and damage evolution of microstructure under water-rock interaction [J]. Rock and Soil Mechanics, 2019, 40(9): 3447-3456.
[14] LI Jing-jing, KONG Ling-wei, . Creep properties of expansive soil under unloading stress and its nonlinear constitutive model [J]. Rock and Soil Mechanics, 2019, 40(9): 3465-3475.
[15] DING Yan-hui, ZHANG Bing-yin, QIAN Xiao-xiang, YIN Yin, SUN Xun, . Experimental study of the characteristics of wetting deformation of rockfill materials [J]. Rock and Soil Mechanics, 2019, 40(8): 2975-2981.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] XIAO Yun-hua, WANG Qing, CHEN Jian-ping. Application of method for weight calculation based on optimization technique to evaluate rock mass quality[J]. , 2009, 30(9): 2686 -2690 .
[2] ZHANG Hong-fei, CHENG Xiao-jun, GAO Pan, Zhou Xin-xin. Research on forward simulation of tunnel lining cavity GPR images[J]. , 2009, 30(9): 2810 -2814 .
[3] FAN Qing-lai, LUAN Mao-tian, LIU Zhan-ge. Numerical simulation of penetration resistance of T-bar penetrometer in soft clay[J]. , 2009, 30(9): 2850 -2854 .
[4] YE Xiao-ping，SUN Qiang, WANG Yuan-yuan, LI Hou-en2, XUE Lei. A modified hypoplastic constitutive model for clay[J]. , 2010, 31(4): 1099 -1102 .
[5] WANG Xiao-jun, QU Yao-hui, WEI Yong-liang, YANG Yin-hai, DA Yi-zheng. Settlement observation and prediction research of test embankment in collapsible loess area along Zhengzhou-Xi'an passenger dedicated line[J]. , 2010, 31(S1): 220 -231 .
[6] CHEN Yu，CAO Ping，PU Cheng-zhi，LIU Ye-ke，LI Na. Experimental study of effect of water-rock interaction on micto-topography of rock surface[J]. , 2010, 31(11): 3452 -3458 .
[7] ZHANG Qi-yi, LUAN Mao-tian. Ultimate bearing capacity of strip footings on inhomogeneous soil foundation under combined loading[J]. , 2009, 30(5): 1281 -1286 .
[8] WANG Jun-qing, LI Jing, LI Qi, CHEN Li. Analysis of influence factors of high slope stability of loess： Taking the Baojixia Water Division Project for example[J]. , 2009, 30(7): 2114 -2118 .
[9] GONG Yan-feng，ZHANG Jun-ru. Study of design methodology and application of tunnel single layer lining[J]. , 2011, 32(4): 1062 -1068 .
[10] CAI Guo-qing, ZHAO Cheng-gang, LIU Yan. An indirect method for predicting permeability coefficients of unsaturated soils at different temperatures[J]. , 2011, 32(5): 1405 -1410 .
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