统计模拟法在滑坡影响因素分析与成因研究中的应用

Analysis of influencing factors and causes of landslide based on statistical simulation method

本文以大岭公山山体滑坡区为研究对象,利用统计模拟法原理,通过分别构建简化的毕肖普法及瑞典条分法计算模型,经对滑坡体内岩土进行采样,并进行分析计算并获得相应参数,确定摩擦角φ和滑动面黏聚力C作为土体的抗剪强度指标对稳定性分析结果影响最大,从而归纳出滑坡形成的影响因素和成因。为最大限度避免及减少地质灾害损失提供技术依据,为地质灾害防灾减灾提供基础保障。

In this paper,the landslide area of Dalingong Mountain is taken as the research object.Based on the idea of Statistical simulation method,simplified calculation models of Bishop method and Fellenius method are constructed respectively to analyze the geotechnical parameters of landslide affecting stability in the landslide area of Dalingong Mountain.The shear strength factors that affect the stability of landslide soil mass are the friction angleφand the cohesion force C of sliding surface.The influencing factors and causes of landslide formation are summarized.It provides the technical basis for avoiding and reducing the loss of geological disasters to the maximum extent,and also provides the basic guarantee for geological disaster prevention and reduction.