基于悬臂梁力学模型分析高边坡危岩体的稳定性——以四川省三清村高边坡W_1危岩体为例  

Analysis on the Stability of the Dangerous Rock in High Slope Based on the Mechanics Model of Cantilever——Taking W_1 Dangerous Rock of Sanqing Village High Slope for Example

作　　者：于明明[1] 贾志献[1] 李小雪[1] 

机构地区：[1]中国地质大学工程学院,武汉430074

出　　处：《安全与环境工程》2012年第1期117-119,123,共4页Safety and Environmental Engineering

摘　　要：四川省苍溪县三清村高边坡的稳定性对当地居民的人身安全构成了威胁,需要对高边坡进行稳定性分析和评价。本文针对三清村高边坡自来水厂段W1危岩体,采用悬臂梁力学模型对其稳定性进行了定量计算及分析,结果表明:将计算所得的W1危岩体截面的最大剪切应力与截面允许的最大剪切应力进行对比,可以判断W1危岩体在自然条件下处于稳定状态,在暴雨和地震条件下处于不稳定状态,该结果与野外的宏观判断结论基本一致。The high slope stability of Sanqing Village of Cangxi County in Sichuan Province threatens the safety of the local residents, so it needs to be analyzed and assessed. This paper analyzes the stability of Wa dangerous rock in the waterworks section （1 120- 1 440 m）by using the mechanics model of cantilever. Through the contrast of the maximum shear stress of a section with the largest allowing shear stress of the section, it is judged that the dangerous rock Wl in natural conditions is in the stable state,but in heavy rain and seismic conditions, it is in the unstable state. This result is the same with the field macro judg- ment conclusion.

关 键 词：高边坡 危岩体 稳定性分析 悬臂梁力学模型 剪切应力 

分 类 号：TU457[建筑科学—岩土工程]