某斜墙坝上游坝坡滑坡机理及防治措施  

Mechanism Analysis and Treatment Method of Slope Landslide at Upstream in a Inclined Wall Dam

作　　者：叶伟[1] 马福恒[1,2] 俞扬峰 YE Wei;MA Fu-heng;YU Yang-feng(Nanjing Hydraulic Research Institute,Nanjing 210029,China;State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering,Nanjing 210029,China)

机构地区：[1]南京水利科学研究院,江苏南京210029 [2]水文水资源与水利工程科学国家重点实验室,江苏南京210029

出　　处：《水电能源科学》2020年第2期135-138,共4页Water Resources and Power

基　　金：国家自然科学基金项目(51779155)。

摘　　要：为分析某斜墙坝上游坝坡滑坡变形机理并提出针对性治理措施,结合现场勘查及数值计算分析滑坡形成过程及发展趋势,确定诱发上游坝体滑坡的主要原因为土工膜破坏、降雨入渗、历史填土碾压缺陷等。根据坝体滑坡成因机制,结合大坝工程地质条件,比选上游坡压重与增设抗滑桩方案,发现采用抗滑桩进行支挡不仅能有效提高坝坡抗滑稳定安全系数,且经济性良好、可实施性强。In order to analyze the deformation mechanism of the landslide on the upstream dam slope of an inclined wall dam and put forward the corresponding treatment measures,the formation process and development trend of the landslide were analyzed by combining with field investigation and numerical calculation.The main causes of the landslide of the upstream dam body were the destruction of geomembrane,rainfall infiltration and the rolling defects of historical fill.According to the cause mechanism of dam landslide and the engineering geological conditions of the dam,it was found that the use of anti-slide piles to retain the dam slope can not only effectively improve the safety factor of anti-sliding stability,but also be economical and practicable.

关 键 词：斜墙坝 坝坡滑坡 机理 防治措施 抗滑桩 

分 类 号：P642.22[天文地球—工程地质学]