›› 2011, Vol. 32 ›› Issue (1): 172-178.

• Geotechnical Engineering • Previous Articles     Next Articles

Effects of overburden pressure and drainage conditions on strength of soft dredger fills

YANG Ai-wu 1, 2, 3，YAN Shu-wang2，DU Dong-ju 1, 3，ZHAO Rui-bin1, 3，LU Li-qiang 1, 3，WANG Jiang-hong 1,3   

  1. 1.Department of Civil Engineering, Tianjin Institute of Urban Construction, Tianjin 300384, China; 2. School of Civil Engineering, Tianjin University, Tianjin 300072, China; 3. Key Laboratory of Soft Soil Engineering Character and Engineering Environment of Tianjin, Tianjin 300072, China
  • Received:2009-10-10 Online:2011-01-10 Published:2011-01-19

PDF (Chinese)

2848

Abstract:

Because of different compositions and depositional environments, the natures of dredger fills are different. In this paper, Tianjin marine soft soil is used as material to simulate site environment to study the strength growth in soft dredger fill. Experiments show that the different conditions of pressure and drainage affect the growth of soft dredger fill greatly. When conditions are conducive to the drainage of water in soil, the growth of strength is significant. The effect on soil strength growth by overburden pressure is through some possible drainage; when drainage conditions are bad, and the pressure increased, the strength grows slowly and little; on the contrary, it grows faster and absolute value is large.

Key words: soft dredger fill, yield stress, drainage conditions, overburden pressure, site simulation

CLC Number: 

  • TU 447
[1] 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.
[2] WANG Li-qin, SHAO Sheng-jun, WANG Shuai, ZHAO Cong, SHI Peng-xin, ZHOU Biao, . Compression curve characteristic of undisturbed loess [J]. Rock and Soil Mechanics, 2019, 40(3): 1076-1084.
[3] YANG Ai-wu, PAN Ya-xuan, CAO Yu, SHANG Ying-jie, WU Ke-long, . Laboratory experiment and numerical simulation of soft dredger fill with low vacuum pre-compression [J]. Rock and Soil Mechanics, 2019, 40(2): 539-548.
[4] YANG Ai-wu, YU Jun-dong, QI Jie-jie,. Experimental study on stress relaxation of soft dredger fill under CU triaxial shear [J]. , 2017, 38(11): 3089-3094.
[5] ZHOU Xiao-wen , LIU Pan , HU Li-ming , HE Yong-bin , ZHAO Shi-wei , . An experimental study of shear yield characteristics of structured granite residual soil [J]. , 2015, 36(S2): 157-163.
[6] LIU Wei-zheng , QU Shuai , ZHANG Jun-hui，. In-situ compression law and prediction model of natural sedimentary structured clay [J]. , 2015, 36(S1): 101-108.
[7] CHEN Bo ，SUN De-an ，JIN Pan,. An elastoplastic constitutive model for marine sedimentary soft clays [J]. , 2015, 36(3): 730-738.
[8] ZHOU Bao-chun, ZHANG Yan-jun, TANG Zhi-song, MA Quan-guo, . One-dimensional swelling-compression characteristics of Jingmen weak expansive soil under different compactnesses [J]. , 2014, 35(5): 1275-1283.
[9] YAO Zhi-hua ，HUANG Xue-feng ，CHEN Zheng-han ，FANG Xiang-wei，. New recognition of collapsibility evaluation and remnant collapse of loess [J]. , 2014, 35(4): 998-1006.
[10] YANG Ai-wu ，ZHOU Jin ，KONG Ling-wei . Experimental study of solidification of soft dredger fill in Tianjin Binhai New Area [J]. , 2013, 34(9): 2442-2248.
[11] WU Xiao-peng ，XIONG Zhi-wen ，WANG Xiao-jun ，QU Yao-hui . Study of immersion collapsible characteristics under overburden pressure of Western Henan loess along Zhengzhou-Xi'an high-speed railway [J]. , 2012, 33(6): 1769-1773.
[12] YANG Ai-wu ，YAN Shu-wang ，DU Dong-ju . Study of creep model of structural soft dredger fill [J]. , 2012, 33(11): 3213-3218.
[13] HUANG Ying-hao , ZHU Wei , ZHOU Xuan-zhao , ZHANG Chun-lei . Experimental study of compressibility behavior of solidified dredged material [J]. , 2012, 33(10): 2923-2928.
[14] YIN Jie. Effect of soil structure on compression behavior of natural soft clays [J]. , 2012, 33(1): 48-52.
[15] ZHOU Wan-huan , YIN Jian-hua. Finite element modeling soil nail pullout behavior and effects of overburden pressure and dilation [J]. , 2011, 32(S1): 691-0696.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] XU Jin-ming, QIANG Pei, ZHANG Peng-fei. Texture analysis of photographs of silty clay[J]. , 2009, 30(10): 2903 -2907 .
[2] LIANG Gui-lan, XU Wei-ya, TAN Xiao-long. Application of extension theory based on entropy weight to rock quality evaluation[J]. , 2010, 31(2): 535 -540 .
[3] LI Rong-tao. A coupled chemoplastic-damage constitutive model for plain concrete subjected to high temperature[J]. , 2010, 31(5): 1585 -1591 .
[4] MA Wen-tao. Forecasting slope displacements based on grey least square support vector machines[J]. , 2010, 31(5): 1670 -1674 .
[5] YU Lin-lin，XU Xue-yan，QIU Ming-guo, LI Peng-fei，YAN Zi-li. Influnce of freeze-thaw on shear strength properties of saturated silty clay[J]. , 2010, 31(8): 2448 -2452 .
[6] WANG Wei, LIU Bi-deng, ZHOU Zheng-hua, WANG Yu-shi, ZHAO Ji-sheng. Equivalent linear method considering frequency dependent stiffness and damping[J]. , 2010, 31(12): 3928 -3933 .
[7] WANG Hai-bo，XU Ming，SONG Er-xiang. A small strain constitutive model based on hardening soil model[J]. , 2011, 32(1): 39 -43 .
[8] CAO Guang-xu, SONG Er-xiang, XU Ming. Simplified calculation methods of post-construction settlement of high-fill foundation in mountain airport[J]. , 2011, 32(S1): 1 -5 .
[9] LIU Hua-li , ZHU Da-yong , QIAN Qi-hu , LI Hong-wei. Analysis of three-dimensional end effects of slopes[J]. , 2011, 32(6): 1905 -1909 .
[10] LIU Nian-ping , WANG Hong-tu , YUAN Zhi-gang , LIU Jing-cheng. Fisher discriminant analysis model of sand liquefaction and its application[J]. , 2012, 33(2): 554 -557 .
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