Optimization Model for Determining Safety Factor and Thrust Line in Landslide Assessments
Optimization Model for Determining Safety Factor and Thrust Line in Landslide Assessments
复制标题
滑坡评估中确定安全系数和推力线的优化模型
DOI：
10.1061/(asce)gm.1943-5622.0000785
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发表时间：
2016-08
影响因子：
3.7
通讯作者：
Zheng Hong
中科院分区：
文献类型：
--
作者：
Sun Guanhua;Jiang Wei;Cheng Shengguo;Zheng Hong
摘要 当极限平衡法应用于复杂滑坡的稳定性评价时，采用严格的方法常常会遇到一些奇怪的结果。这些偏心的结果可能归因于不合理地假设的层间力。而且，用这种严格的方法求解出滑坡的安全系数后，工程师还应该验证滑坡中推力线位置的合理性。本文基于层间力的 Morgenstern-Price 假设，提出了一种新的全局分析方法。以全局平衡方程、滑动面正应力和推力线位置为约束条件，构建优化模型。通过对一些典型滑坡的分析，研究了约束条件与安全系数和推力线之间的关系，得到了一些有趣的结果。
AbstractWhen the limit-equilibrium method is employed in the stability assessment of complicated landslides, some eccentric results are often encountered with the use of rigorous methods. These eccentric results may be attributable to irrationally assumed interslice forces. Furthermore, engineers should verify the rationality of the thrust-line position in a landslide after the safety factor of the landslide is solved with the use of such rigorous methods. In this paper, a new global analysis method is proposed based on the Morgenstern–Price assumption for interslice forces. The global equilibrium equations, normal stresses on the sliding surface, and position of the thrust line were employed as constraint conditions to construct an optimization model. The relationships between the constraint conditions and the safety factors and thrust line were investigated through the analysis of some typical landslides with some interesting results.
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DOI：
10.1680/geot.1978.28.2.220
发表时间：
1977-03
期刊：
--
影响因子：
--
作者：
J. Revilla;E. Castillo
通讯作者：
J. Revilla;E. Castillo
影响因子：
5.8
作者：
E. Spencer
通讯作者：
E. Spencer
影响因子：
3.7
作者：
T. Bai;T. Qiu;Xiaoming Huang;Chang Li
通讯作者：
T. Bai;T. Qiu;Xiaoming Huang;Chang Li
影响因子：
5.8
作者：
SARMA, SK
通讯作者：
SARMA, SK
影响因子：
6.7
作者：
Xu, Qianjun;Zhang, Limin
通讯作者：
Zhang, Limin