擎天峰危岩体稳定性研究

摘要

＂5.12＂汶川8.0级地震,诱发了大量滑坡、崩塌等地质灾害。这些地质灾害不仅直接造成当地人员伤亡和财产损失,而且震后产生的不稳定变形体（危岩体）仍威胁着灾区恢复重建安置区、公共基础设施及厂矿企业的安全。结合研究区工程地质概况,对擎天峰危岩体的形成机制及失稳破坏模式做了研究,并以数值模拟对擎天峰危岩体进行了稳定性分析。%＂5.12＂ Wenchuan 8.0 Earthquake induced a large quanuty ol la , r geological disasters which not only directly caused local personal casualty and property loss, but also developed instable deformable body （dangerous rock mass） endangering the resettlement area, public infrastructure and industrial enterprises. Combined with the engineering geological profile in the area studied, the formation mechanism and failure mode of the dangerous rock mass at Qingtian Peak are studied and its stability analysis is conducted by numerical simulation.