开挖和降雨耦合诱发工程边坡地质隐患易发性分析  

SUSCEPTIBILITY ANALYSIS OF GEOLOGICAL DISASTERS OF ENGINEERING SLOPE INDUCED BY THE COUPLING OF EXCAVATION AND RAINFALL

作　　者：蔡文权 李建颖 CAI Wen-quan;LI Jian-ying(Team 935,Guangdong Bureau of Nonferrous Geology,Huizhou 516000;Yangtze University,Wuhan 430100;Team 931,Guangdong Bureau of Nonferrous Geology,Shantou 51504)

机构地区：[1]广东省有色金属地质局九三五队,广东惠州516000 [2]长江大学,湖北武汉430100 [3]广东省有色金属地质局九三一队,广东汕头515041

出　　处：《云南地质》2024年第1期98-104,共7页Yunnan Geology

摘　　要：华南多山地区较大的降雨量对边坡稳定性的影响是重要的影响因素之一。近年人类工程活动和降雨环境耦合诱发的地质灾害事件频发。本文以广东惠州市仲恺区一高边坡为例,对开挖和降雨耦合可能诱发的地质灾害事件,选取若干指标,利用bishop法对工程活动后边坡可能发生的地质灾害触发机理进行分析,提出预防建议。研究表明,强降雨对人工开挖边坡起到激发和加速作用,开挖深度加大与暴雨天气叠加,最终导致滑坡复活。The large rainfall in the mountainous area of South China is one of the important factors affecting the stability of the slope.In recent years,geological disasters induced by the coupling of human engineering activities and rainfall environment have occurred frequently.Taking a high slope in Zhongkai District,Huizhou City,Guangdong Province as an example,several indicators were selected and the bishop method was used for triggering mechanism analysis of geological disasters that may occur in the slope after engineering activities,and then preventive suggestions were put forward.The research shows that heavy rainfall can stimulate and accelerate the artificial excavation slope,and the increase of excavation depth is superimposed with rainstorm weather,which eventually leads to the resurrection of landslide.

关 键 词：人工开挖和降雨 边坡稳定性 地质灾害 广东惠东 

分 类 号：P642.2[天文地球—工程地质学]