浆砌石拦挡坝稳定性验算及在泥石流灾害治理中的应用

Stability Checking of Stone Masonry Landslide Dam and the Application in Debris Flow Disaster Treatment

摘要:

在对泥石流沟进行详细的地质勘察的基础上，对北京市密云县前火石岭泥石流灾害设计浆砌石拦挡坝进行治理，并对拦挡坝进行了稳定性计算，得到了坝体相关参数及3种设计工况下的抗滑稳定系数、抗倾覆稳定性和地基稳定性。该方案的设计实施，将有效削弱泥石流的致灾能力，降低泥石流对前火石岭村村民生命财产及村内公共设施的威胁，对于维护社会与生态环境的稳定具有积极意义。

关键词:泥石流;地质灾害;拦挡坝;稳定性计算

Abstract:

Based on the detailed geological investigation of the debris flow gully in Qianhuoshiling village, the stone landslide masonry dam for the debris flow control was designed; the stability of dam was calculated to learn the related parameters, the anti-slide stability coefficients and anti-overturning stability & foundation stability under three kinds of design condition. By the design and implementation of the program, the influence of the debris flow could be effectively weakened to protect the safety of life and property of the villagers.

Key words:debris flow; geological hazard; landslide dam; stability calculation