陶纬,孙树林,李方,胡昭,宗岩

• 1:河海大学地质工程系
• 2:河海大学水文水资源与水利工程科学国家重点实验室
• 3:江苏省南京工程高等职业学校

摘要(Abstract)：

为了对带有垂直裂隙的岩质边坡进行稳定性分析,基于极限分析上限法,引入广义Hoek-brown准则对最危险滑移面上的旋转破坏机制和稳定性进行分析,利用拟静力法等手段计算地震力、水压力和均布荷载等不同条件下岩质边坡稳定性的变化,并将外荷载与在滑动面上耗散的能量的比值作为稳定系数,推导出了带有垂直裂隙的岩质边坡的稳定性分析上限解。案例的计算结果表明:基于广义Hoek-Brown强度准则的上限法计算出的结果较极限分析上限法保守,安全系数差距在10%左右;本方法对于有多条裂隙影响的边坡可以分别分析不同裂隙的前部所形成的潜在滑坡体的稳定性并进行对比以选取最危险的滑动块体进行分析。

关键词(KeyWords)： 岩质边坡;垂直裂隙;稳定分析;极限分析上限法

Abstract:

Keywords:

基金项目(Foundation): 河海大学水文水资源与水利工程科学国家重点实验室开放研究基金资助项目(2005408911)

作者(Author): 陶纬,孙树林,李方,胡昭,宗岩

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