串马滑坡稳定性的有限元分析

Finite Element Analysis for Stability of Chuanma Landslide

对串马滑坡工程地质条件、滑坡形成机理及影响其稳定性等众多因素的分析,重点就前缘砖厂过度开采对滑坡的影响进行了稳定性数值模拟分析。形象、直观、准确的分析了过度开挖年限对滑坡后缘居民区稳定性的影响。通过计算得出,在设计有效年限内(15 a～25 a内)砖厂的过度开挖不影响滑坡的整体稳定性,且在控制砖厂年开挖量的前提下,针对滑坡后缘(次级滑体1#)而提出了截排水与重力式抗滑挡墙相结合的治理措施。分析结果对有效防治该滑坡地质灾害的发生、确保人民群众的生命财产安全具有重大的指导作用。

Based on the analysis for Chuanma landslide＇ s geological conditions, formation mechanism and many affecting factors on the stability, the numerical simulation of the stability is made mainly for the effect of overexcavation for the brickyard in leading edge on the landslide, and the imaginative, visual and accurate analyses are made for the effect of the year number of overexcavation on the stability of the housing areas in trailing edge of the landslide. Through calculation, it is obtained that the overexcavation would not affect the landslide＇s stability in effective designing years （in 15 - 25 years）, and the control measure is put forward by combining the cutting-wastewater engineering with the retaining wall according to the trailing edge of the laudslide and the excavated volume in one year. The analytical results are available to prevent the geological disaster of the landslide, and ensure the people＇s life and property security effectively.