持续降雨下对某斜坡稳定性的影响分析  

Analysis on Influence of Continuous Rainfall on Slope Stability

作　　者：周驰词 左三胜[1] 

机构地区：[1]成都理工大学环境与土木工程学院,成都610059

出　　处：《路基工程》2014年第2期184-187,共4页Subgrade Engineering

摘　　要：通过都江堰某不稳定斜坡变形监测与模拟计算,对该斜坡在持续降雨条件下稳定性进行分析评价。通过改变坡体的物理参数来模拟持续降雨条件,计算时采用极限平衡法中的传递系数法。通过位移监测与计算分析,结果显示,随着持续降雨,斜坡稳定性不断降低,最终达到不稳定状态,应进行加固处理,以保安全。Through monitoring the deformation of an instable slope in Dujiangyan and the related simulation computation, its stability under the condition of continuous rainfall was analyzed and evaluated. By changing the physical parameters of the slope to simulate the condition of continuous rainfall, transfer coefficient method in limit equilibrium method was adopted in the computation. The results of displacement monitoring and computation show that, as rainfall continues, the slope stability decreases and reaches a state of instability finally; hence it should be reinforced and protected for the sake of safety.

关 键 词：持续降雨 斜坡稳定性 位移监测 传递系数法 稳定性系数 

分 类 号：TU413.62[建筑科学—岩土工程]