大型多层次堆积体破坏模式及其稳定性

doi:10.13722/j.cnki.jrme.2016.0536

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摘要边坡的破坏模式与稳定性评价是相辅相成的，稳定性评价可确定坡体的稳定性状态，而破坏模式则可有效确定坡体的加固方式。滑坡的破坏模式可分为牵引式、推移式和复合式滑坡，而不同破坏模式的滑坡体需采用不同的加固措施。在坡体当前应力状态的基础上，依据点安全系数的定义，获取潜在滑面上安全系数的分布形态，3种典型滑坡的计算结果表明：滑移面上安全系数的分布形态可很好的诠释滑坡的破坏特征及分段稳定性状态，并可据此提出有效的加固措施。最后将该方法应用在我国西部某大型堆积体中，在野外地质调查的基础上，对其工程地质结构、破坏模式及其稳定性进行了深入分析，综合评价了多层次堆积体的稳定性及破坏模式，并给出了有效的加固建议。

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	张俊文1
	邹烨2
	李玉琳1

关键词 ：边坡工程, 多层次堆积体, 破坏模式, 牵引式滑坡, 推移式滑坡, 福利院滑坡

Abstract：There are three failure modes of landslides，that is，retrogressive landslide，thrust-type landslide and complex landslide. Different failure modes need different reinforcement measures. According to the definition of the point safety factor，the point safety factor along the slip surface can be calculated. The failure mode can be quantitatively described based on the distribution of the safety factor along the slip surface and the suitable reinforcement measures can thus be suggested. The calculated results of three classical landslides show that the failure characteristics can be well explained by the point safety factor along the slip surface. Finally，this method is applied in a large deposit located in the west of China. The engineering geological structure and the failure mechanism of the multi-layer deposit and the stability of the slope were preliminary analyzed based on the field survey and the effective reinforcements were suggested.

Key words： slope engineering multi-layer deposit failure model retrogressive landslide thrust-type landslide Fuliyuan landslide

引用本文:

张俊文1，邹烨2，李玉琳1. 大型多层次堆积体破坏模式及其稳定性[J]. 岩石力学与工程学报, 2016, 35(12): 2479-2489.
ZHANG Junwen1，ZOU Ye2，LI Yulin1. Failure mechanism and stability analysis of big multi-layer deposit. , 2016, 35(12): 2479-2489.

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http://rockmech.org/CN/10.13722/j.cnki.jrme.2016.0536 或 http://rockmech.org/CN/Y2016/V35/I12/2479

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