《Journal of Geotechnical and Geoenvironmental Engineering》杂志刊登“斜表泥浆槽的稳定性分析”

作者：Yu-Chao Li, Qian Pan and Yun-Min Chen
刊物：《Journal of Geotechnical and Geoenvironmental Engineering》，130卷第9期，915-921页
关键词：截水墙；安全系数；倾斜面；稳定性；泥浆槽
摘要：本文介绍了利用库伦力平衡方程评估斜表泥浆槽稳定性的方法。通过一个实例槽的参数分析研究了地表倾斜度对泥浆槽稳定性和临界破坏面角度的影响。与预期相同的是安全系数随着地表倾斜度的减小而降低。这表明计算泥浆槽稳定性时忽略地表倾斜度是不安全的。通过这个例子，对于倾斜面上的斜表泥浆槽使用 作为临界破坏面角度所计算出来的最小安全系数没有明显的错误。但同时也发现实际的临界破坏面角度与 有一定差异，因此在补救设计时不应直接选取 ，而应通过计算来获得临界破坏面角度。

Stability of Slurry Trenches with an Inclined Ground Surface

Authors: Yu-Chao Li, Qian Pan and Yun-Min Chen
Journal:《Journal of Geotechnical and Geoenvironmental Engineering》，Volume 130, Number 9,915-921
Key words: cut-off wall; factor of safety; inclined surface; stability; slurry trench
Abstract: A method for assessing stability of slurry trenches within an inclined ground surface is presented using the Coulomb-type force equilibrium method. The influence of ground surface inclination on trench stability and angle of critical failure surface are investigated via parametric studies on an example trench. As expected the factor of safety decreases considerably with an increase in the ground surface inclination. It is shown that it is unconservative to neglect ground surface inclination while analyzing trench stability. According to the example, no significant error in the minimum factor of safety is introduced by using the failure surface inclination angle of 45°+ ø′ /2 for trenches with an inclined ground surface. It is also found that differences between the angle of critical failure surface and 45°+ ø′ /2 may exist, so the angle of the critical failure surface needs to be determined instead of using 45°+ ø′/2 for the design of remedial measures.

原文链接：http://dx.doi.org/10.1061/(ASCE)GT.1943-5606.0000868
翻译：王丽娟；审核：安鹏