受构造影响的公路滑坡成因分析及治理措施

Cause Analysis and Control Measures of Highway Landslide Affected by Structure

摘要:

本文对眉山环天府新区快速通道位于府君场向斜核部处边坡滑坡成因进行了分析,认为该边坡位于向斜核部,受构造影响岩体破碎,边坡开挖过陡、且受降雨等影响形成了滑坡,根据土工试验并结合反演结果获得了滑动面参数,进行了滑坡稳定性分析及推力计算,确定采用适当抬升纵坡后清方方案进行治理。

Abstract:

The landslide phenomenon of slope at the syncline core of Fujunchang by fast channel in Tianfu New Area of Meishan is analyzed. It is believed that the cause of landslide is the development of mudstone in the slope stratum, and the rock mass is broken with poor integrity because of syncline effect of Fujunchang. The excavation of the slope is too steep and is affected by the rainfall in the construction. In order to determine the treatment scheme, the sliding surface parameters are achieved according to the geotechnical test result and inversion result. The stability analysis and thrust calculation of the landslide are carried out. Finally, it is determined to use the treatment scheme properly for lifting the longitudinal slope and then clearing the earthwork.