瀑布沟砾石土心墙堆石坝施工期监测分析  

Monitoring and Analysis on Pubugou Gravel Soil Corewall Rockfill Dam during Construction Period

作　　者：涂扬举 王文涛 陈向浩[2] 邓建辉[2] 陈科文[2] 文豪 

机构地区：[1]国电大渡河公司瀑布沟水电站建设分公司,四川雅安625300 [2]四川大学水力学与山区河流开发保护国家重点实验室,四川成都610065 [3]国电大渡河公司流域检修安装分公司,四川乐山614900

出　　处：《水力发电》2010年第6期71-74,共4页Water Power

摘　　要：以瀑布沟水电站砾石土心墙堆石坝施工期变形、应力监测资料为基础,对其主要监测断面的变形特征和应力分布进行了探讨。分析表明,心墙和堆石区最大沉降均位于1/3坝高上下;拱效应最强烈的部位也在1/3坝高处,与心墙坝壳沉降差最大的位置一致;孔隙水压力主要与土料含水量和施工进度有关。Based on the monitoring data of deformation and stress of Pubugou darn during construction period, the deformation eharaeteristics and stress distribution in main cross-sections was analyzed. The results show that maximum settlement of core wall and rockfill zone are located on the 1/3 height of dam, the strongest arch effect is also located on the 1/3 height of dam and consistent with the location of the largest settlement difference of the dam shell. The pore water pressure is mainly related to the water content of soil materials and construction progress.

关 键 词：砾石土心墙堆石坝 变形 孔隙水压力 拱效应 监测 瀑布沟水电站 

分 类 号：TV698.11[水利工程—水利水电工程]