西藏拉洛水利枢纽工程库区塌岸特征及治理方案  

Bank collapse characteristics and treatment scheme of Laluo Hydro Project in Tibet

作　　者：牛运华 杨波 NIU Yunhua;YANG Bo(Changjiang Survey,Planning,Design and Research Co.,Ltd.,Wuhan 430010,China)

机构地区：[1]长江勘测规划设计研究有限责任公司,湖北武汉430010

出　　处：《水利水电快报》2022年第11期13-16,23,共5页Express Water Resources & Hydropower Information

摘　　要：西藏拉洛水利枢纽工程蓄水后形成了高海拔水库,为解决库区近坝岸坡坍塌危及进场道路通行安全问题,开展了地质调查和机理分析。通过多种治理方案和绕线避让方案比选,初步选定治理方案;选择一处塌岸部位作为试验段,验证所选方案的实施效果,最终确定采用上部减载+下部压脚方案。研究表明:该方案技术可行,施工方案稳妥且又能就地取材,实施效果良好,起到了较好的稳坡作用。研究成果可为同类工程塌岸灾害提供借鉴。In order to solve the problem that the collapse of the near-dam bank slope in the high-altitude reservoir area of the Laluo Hydro Project endangers the traffic safety of the approach road after the impoundment, geological survey and mechanism analysis were carried out.Through the comparison and selection of various treatment schemes and bypass schemes, the treatment scheme was preliminarily selected, and then a bank collapse site was selected as the test section to verify the implementation effect of the selected scheme.Finally, the upper load reduction and lower foot pressing scheme was determined.The results showed that this scheme is feasible in technology, the construction scheme is safe, and can use local materials.The implementation effect is good, and has a good role in stabilizing the slope.The research results can provide references for treatment of similar project bank collapse disaster.

关 键 词：塌岸 边坡稳定 拉洛水利枢纽工程 高海拔 西藏 

分 类 号：TV61[水利工程—水利水电工程]