锦屏一级拱坝左岸边坡施工期的监测与分析  

The Monitoring and Analysis of the Left Bank Slope of the Jinping Ⅰ Arch Dam

作　　者：庹金松[1] 陈新[1] 王一飞[1] 廖元元[1] 

机构地区：[1]四川大学水利水电学院,成都610065

出　　处：《中国农村水利水电》2012年第4期126-129,共4页China Rural Water and Hydropower

基　　金：四川省支撑计划项目(2008SZ0232);国家自然科学基金青年项目(41102194)

摘　　要：锦屏一级拱坝左岸边坡开挖高度大,地质条件较复杂,加之施工工期紧,施工过程中不可预见的因素较多。因此,加强该边坡的施工期监测,是非常重要且必要的。变形是反映边坡稳定性最直观的物理量,选取依托工程坝肩槽A-A监测断面为分析的典型断面,通过布设在该断面的多点位移计实测的变形数据,及时地进行了边坡岩石变形的监测和分析工作,为指导边坡开挖的安全施工,优化施工方案提供了实测依据。在坝肩槽边坡的开挖过程中,根据反馈的监测信息分析成果,针对岩石变形超过安全预警值的情况,及时地采取调整施工进度和加强支护等措施,确保了施工的安全顺利进行。The security of the left bank slope of the Jinping I arch dam under construction is outstanding,because of its huge quantities of excavation,complex geological conditions,tightly construction schedule and many unforeseen factors,it is important and necessary to strengthen the monitoring of slope.Since deformation is the most intuitive physical to reflect slope stability,based on the abutment groove A-A section of the support projects,the work of deformation monitoring and analysis is done by using the multi-displacement meters and this work can timely feedback the conclusion to the construction site and direct the decision-making of slope construction.The process of excavating the slope of the abutment groove benefits a lot from the results of the monitoring information analysis,measures including adjust the construction schedule and to strengthen the supporting work are being taken in case of the rock deformation over the alert value,all these work is proved to be effectively guarantee the safety of the construction progress.

关 键 词：多点位移计 变形值 变形速率 监测分析 

分 类 号：TV642.45[水利工程—水利水电工程]