Trench Stability Analysis of Diaphragm Wall in Cohesive Soil Sandwiched Sand

Mingxi OU; Zhifeng DAI; Yinghui CHEN; Yue GUI

doi:10.13409/j.cnki.jdpme.2020.04.007

您当前的位置：

首页 >

文章列表页 >

Trench Stability Analysis of Diaphragm Wall in Cohesive Soil Sandwiched Sand

更新时间：2025-09-25

- Trench Stability Analysis of Diaphragm Wall in Cohesive Soil Sandwiched Sand
- Journal of Disaster Prevention and Mitigation Engineering Vol. 40, Issue 4, Pages: 537-542(2020)
- 作者机构：
  
  1.昆明理工大学建筑工程学院, 云南昆明 650500
  2.云南省土木工程防灾重点实验室, 云南昆明 650500
- 作者简介：
- 基金信息：
- DOI：10.13409/j.cnki.jdpme.2020.04.007
  CLC： TU473
- Received：06 June 2019，
  
  Revised：2019-11-04，
  
  Published：15 August 2020
- 稿件说明：
移动端阅览
欧明喜,戴志峰,陈颖辉等.地下连续墙黏性土夹砂层槽壁稳定性分析[J].防灾减灾工程学报,2020,40(04):537-542.

OU Mingxi,DAI Zhifeng,CHEN Yinghui,et al.Trench Stability Analysis of Diaphragm Wall in Cohesive Soil Sandwiched Sand[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(04):537-542.
欧明喜,戴志峰,陈颖辉等.地下连续墙黏性土夹砂层槽壁稳定性分析[J].防灾减灾工程学报,2020,40(04):537-542. DOI： 10.13409/j.cnki.jdpme.2020.04.007.

OU Mingxi,DAI Zhifeng,CHEN Yinghui,et al.Trench Stability Analysis of Diaphragm Wall in Cohesive Soil Sandwiched Sand[J].Journal of Disaster Prevention and Mitigation Engineering,2020,40(04):537-542. DOI： 10.13409/j.cnki.jdpme.2020.04.007.

摘要

为了探讨地下连续墙黏性土夹砂层泥浆槽壁局部稳定性问题，建立稳定性分析力学模型，对槽壁夹砂层土体单元应力状态进行分析。基于朗肯极限平衡原理，提出泥浆槽壁局部稳定性系数计算方法。通过算例分析可知：（1）开挖将导致槽壁夹砂层土体单元产生负孔隙水压力，局部稳定性系数将会随负孔隙水压力的消散逐渐降低。（2）局部稳定性系数随相关因素的变化规律：地面超载每增大10 kPa，稳定性系数降低7%左右；泥浆重度每增大0.5 kN/m

，稳定性系数提高13%左右；有效内摩擦角每增大3°，稳定性系数提高11.5%左右；局部稳定性系数随地下水位埋深的增大而增大，但增幅逐渐减小；随泥浆液面深度的增大而减小，且降幅逐渐增大。

Abstract

In order to study the local stability of slurry trench of diaphragm wall in cohesive soil sandwiched sand

mechanical model was established to analyze the stress state of the sand layer. Based on Rankine limit equilibrium principle

calculating method for local stability coefficient of slurry trench was proposed. The main conclusions through the analysis of example are as follows: (1) excavation will lead to negative pore water pressure in the soil element with sand layer

and the local stability coefficient will gradually decrease with the dissipation of negative pore water pressure. (2) the variation of local stability coefficient with relevant factors was obtained: the stability coefficient decreases about 7% for each 10 kPa increase of ground overload and increases about 13% for each 0.5 kN/m

increase of mud gravity. It increases about 11.5% for every 3 degree increase of effective internal friction angle. Local stability coefficient increases with the depth of the groundwater level at a decelerated growth rate

while decreases with the increase of slurry liquid level depth at an accelerated growth rate.

关键词

Keywords

references

Tsai J S . Stability of weak sublayers in a slurry supported trench [J]. Canadian Geotechnical Journal , 1997 , 34 ( 2 ): 189 - 196 .

Powrie W , Kantartzi C . Ground response during diaphragm wall installation in clay：centrifuge model test [J]. Géotechnique , 1996 , 46 ( 4 ): 725 - 739 .

Oblozinsky P , Ugai K , Katagiri M , et al . A design method for slurry trench wall stability in sandy ground based on the elastoplastic FEM [J]. Computers and Geotechnics , 2001 , 28 ( 2 ): 145 - 159 .

韩长玉 , 陈锦剑 , 王建华 , 等 . 地下连续墙成槽过程中阳角处槽壁的稳定性分析 [J]. 上海交通大学学报 , 2013 , 47 （ 9 ）: 1 409 - 1 412,1 418 .

Han Ch Y , Chen J J , Wang J H , et al . Convex corne rstability analysis of slurry trench [J]. Journal of Shanghai Jiaotong University , 2013 , 47 （ 9 ）: 1 409 - 1 412,1 418 . (in Chinese)

Tsai J S , Chang J C . Three-dimensional stability analysis for slurry-filled trench wall in cohesionless soil [J]. Canadian Geotechnical Journal , 1996 , 33 ( 5 ): 798 - 808 .

Fox P J . Analytical solutions for stability of slurry trench [J]. Journal of Geotechnical and Geoenvironmental Engineering , ASCE , 2004 , 130 ( 7 ): 749 - 758 .

张厚美 , 夏明耀 . 地下连续墙泥浆槽壁稳定的三维分析 [J]. 土木工程学报 , 2000 , 33 ( 1 ): 73 - 76 .

Zhang H M , Xia M Y . 3-D stability analysis of slurry trenches [J]. China Civil Engineering Journal , 2000 , 33 ( 1 ): 73 - 76 . (in chinese)

夏元友 , 裴尧尧 , 王智德 , 等 . 地下连续墙泥浆槽壁稳定性评价的水平条分法 [J]. 岩土工程学报 , 2013 , 35 ( 6 ): 1 128 - 1 133 .

Xia Y Y , Pei Y Y , Wang Zh D , et al . Horizontal slice method for stability of slurry trench [J]. Chinese Journal of Geotechnical Engineering , 2013 , 35 ( 6 ): 1 128 - 1 133 . (in chinese)

黄锋 . 考虑地下水作用的连续墙开挖稳定分析 [J]. 公路工程 , 2013 , 38 ( 5 ): 230 - 232,242 .

Huang F . Local and overall stability analysis for slurry trench [J]. Highway Engineering , 2013 , 38 ( 5 ): 230 - 232,242 . (in Chinese)

丁勇春 , 李光辉 , 程泽坤 , 等 . 地下连续墙成槽施工槽壁稳定机制分析 [J]. 岩石力学与工程学报 , 2013 , 32 ( 增1 ): 2 704 - 2 709 .

Ding Y Ch , Li G H , Cheng Z K , et al . Analysis of trench face stability of diaphragm wall panel during slurry trenching [J]. Chinese Journal of Rock Mechanics and Engineering , 2013 , 32 ( Sup 1 ): 2 704 - 2 709 . (in Chinese)

Han Ch Y , Wang J H , Xia X H , et al . Limit analysis for local and overall stabilityof a slurry trench in cohesive soil [J]. International Journal of Geomechanics , 2015 , 15 （ 5 ）: 06014026 - 9 .

George M F , Tiffany A , Richard R D . Stability of long trenches in sand supported by bentonite-water slurry [J]. Journal of Geotechnical and Geoenvironmental Engineering , 2004 , 130 ( 9 ): 915 - 921 .

Tsai J S , Chang C C , Jou L D . Lateral extrusion analysis of sandwiched weak soil in slurry trench [J]. Journal of Geotechnical and Geoenvironmental Engineering , 1998 , 124 ( 11 ): 1 082 - 1 090 .

Tsai J S . Stability of weak sublayers in a slurry supported trench [J]. Canadian Geotechnical Journal , 1997 , 34 ( 2 ): 189 - 196 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Fiber Optic Monitoring and Numerical Simulation of Stress and Deformation of Diaphragm Wall

Analysis on the Formation and Apparent⁃dip Lateral Sliding Mechanism of Shanshucao Landslide in the Three Gorges Reservoir Area

Related Author

LIU Tianxiang

ZHU Honghu

CHENG Gang

TAN Daoyuan

WEI Guangqing

SHI Bin

Jian ZHOU

Maolin DENG

Related Institution

School of Earth Sciences and Engineering,Nanjing University

School of Computer Science, North China Institute of Science and Technology (National Safety Training Center of Coal Mines)

Suzhou NanZee Sensing Co. Ltd.

Hubei Geological Disaster Prevention and Control Engineering Technology Research Center,China Three Gorges University

Key Laboratory of Geological Hazards on Three Gorges Reservoir Area of Ministry of Education, China Three Gorges University

⁰