基于FLAC3D的夏日滑坡稳定性研究分析
Analysis of Stability of Xiari Landslide Based on FLAC3D
摘要: 库岸边坡失稳是水库在修建和运行过程中常见的工程地质灾害,水库边坡一旦失稳将直接对整个工程造成巨大的经济财产损失。本文通过对夏日滑坡现场地质调查及勘探揭示的成果,确定其潜在滑动面,建立基于快速拉格朗日差分法的FLAC3D计算模型,计算其稳定性并分析其破坏模式。结果表明,夏日滑坡存在两组潜在滑动面,并且在天然、蓄水、地震工况下都能满足稳定性要求。
Abstract:
The bank slope instability is a common engineering geological disaster in the process of construc-tion and operation of reservoir. Once the slope of reservoir is unstable, it will cause huge loss of economic property directly. Based on the results of geological survey and exploration of Xiari landslide, the potential sliding surface was determined, and the calculation model of fast Lagrange analysis method based on FLAC3D was established, and the stability and failure mode were calcu-lated. The results show that there are two sets of potential sliding surfaces in Xiari landslides, and they can meet the stability requirements under natural, water storage and earthquake conditions.
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