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CLC number: TU46

On-line Access: 2013-01-31

Received: 2012-10-06

Revision Accepted: 2013-01-07

Crosschecked: 2013-01-23

Cited: 6

Clicked: 5900

Citations:  Bibtex RefMan EndNote GB/T7714

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Journal of Zhejiang University SCIENCE A 2013 Vol.14 No.2 P.94-100


2D and 3D stability analysis of slurry trench in frictional/cohesive soil*

Author(s):  Chang-yu Han, Jin-jian Chen, Jian-hua Wang, Xiao-he Xia

Affiliation(s):  . Department of Civil Engineering, Shanghai Jiaotong University, Shanghai 200240, China

Corresponding email(s):   wjh417@sjtu.edu.cn

Key Words:  Limit analysis, Stability, Slurry trench, Diaphragm wall

Chang-yu Han, Jin-jian Chen, Jian-hua Wang, Xiao-he Xia. 2D and 3D stability analysis of slurry trench in frictional/cohesive soil[J]. Journal of Zhejiang University Science A, 2013, 14(2): 94-100.

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publisher="Zhejiang University Press & Springer",

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%T 2D and 3D stability analysis of slurry trench in frictional/cohesive soil
%A Chang-yu Han
%A Jin-jian Chen
%A Jian-hua Wang
%A Xiao-he Xia
%J Journal of Zhejiang University SCIENCE A
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%D 2013
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1200257

T1 - 2D and 3D stability analysis of slurry trench in frictional/cohesive soil
A1 - Chang-yu Han
A1 - Jin-jian Chen
A1 - Jian-hua Wang
A1 - Xiao-he Xia
J0 - Journal of Zhejiang University Science A
VL - 14
IS - 2
SP - 94
EP - 100
%@ 1673-565X
Y1 - 2013
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1200257

A 2D and 3D kinematically admissible rotational failure mechanism is presented for homogeneous slurry trenches in frictional/cohesive soils. Analytical approaches are derived to obtain the upper bounds on slurry trench stability in the strict framework of limit analysis. It is shown that the factor of safety from a 3D analysis will be greater than that from a 2D analysis. Compared with the limit equilibrium method, the limit analysis method yields an unconservative estimate on the safety factors. A set of examples are presented in a wide range of parameters for 2D and 3D homogeneous slurry trenches. The factor of safety increases with increasing slurry and soil bulk density ratio, cohesion, friction angle, and with decreasing slurry level depth and trench depth ratio, trench width and depth ratio. It is convenient to assess the safety for the homogeneous slurry trenches in practical applications.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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