水库土石坝坝坡稳定性分析  

Stability Analysis of Dam Slope of Reservoir Earth-rock Dam

作　　者：荣威 秦宇 张坤勇[2,3] Rong Wei;Qin Yu;Zhang Kunyong(Powerchina,Changsha,Hunan 410014;Key Laboratory of Geomechanics and Embankment Engineering(Hohai University),Nanjing,Jiangsu 210024;Key Laboratory of Geomechanics and Embankment Engineering(Hohai University),Ministry of Education,Nanjing,Jiangsu 210024)

机构地区：[1]中国电建集团中南勘测设计研究院有限公司,湖南长沙410014 [2]河海大学岩土力学与堤坝工程教育部重点实验室,江苏南京210024 [3]河海大学岩土工程科学研究所,江苏南京210024

出　　处：《江西建材》2024年第12期109-112,共4页

摘　　要：土石坝运行环境的复杂多变以及本身特性和缺点,易导致坝坡失稳破坏,因此,对土石坝进行多工况下坝坡稳定性分析十分必要。文中以某土石坝为研究对象,采用有限元方法,对六种工况下的上下游坝坡稳定性进行数值模拟,分析坝坡渗流情况,计算坝坡稳定性,得到坝坡滑移面进出口图和抗滑稳定安全系数。结果表明,该土石坝在六种工况下的坝坡稳定性均满足规范要求。The complex and changeable operating environment of earth-rock dam as well as its own characteristics and shortcomings are easy to lead to the instability and failure of dam slope,so it is necessary to analyze the slope stability of earth-rock dam under multiple working conditions.Taking an earth-rock dam as the research object,the finite element method is used to numerically simulate the slope stability of the upstream and downstream DAMS under six working conditions,analyze the seepage situation of the dam slope,calculate the dam slope stability,and obtain the inlet and outlet diagram of the sliding surface of the dam slope and the safety factor of anti-sliding stability.The results show that the slope stability of the earth-rock dam can meet the requirements of the code under six working conditions.

关 键 词：土石坝 稳定系数 有限元分析 滑移面 

分 类 号：TV641[水利工程—水利水电工程]