三河口碾压混凝土拱坝初期蓄水安全监测评价  

Safety Monitoring and Evaluation of Initial Impoundment of Sanhekou RCC Arch Dam

作　　者：刘茜 王佐荣 LIU Qian;WANG Zuorong(Hanjiang-to-Weihe River Valley Water Diversion Project Construction Co.Ltd.,Xi’an 710100,China)

机构地区：[1]陕西省引汉济渭工程建设有限公司,陕西西安710100

出　　处：《人民黄河》2021年第3期145-150,154,共7页Yellow River

基　　金：陕西省水利科技计划项目(2015slkj-16,2016slkj-5)。

摘　　要：为全面深入了解三河口碾压混凝土拱坝蓄水至550 m高程的安全状态,对大坝主体工程、下游消能建筑物、两岸边坡及滑坡体实施了变形(水平位移、垂直位移及接缝开合度)、渗流渗压及应力应变监测,获取了大量监测数据,监测结果分析表明:三河口水利枢纽初期下闸蓄水,大坝主体、消能建筑物和两岸边坡及滑坡体的位移变形、渗流渗压、应力应变均正常连续变化、变幅较小,未出现大的异常突变,变化过程和分布规律基本合理。综合分析认为,三河口水利枢纽初期下闸蓄水过程安全可控,坝体工作性态正常。In order to get a comprehensive indepth understanding of safety status of Sanhekou RCC arch dam impoundment to 550m,the deformation of the structures(horizontal displacement,vertical displacement and openings of joint),seepage pressure and stress and strain of the dam,energydissipation structures and slopes and landslide on both sides of the river were monitored.Meanwhile,a large number of monitoring data were obtained.The monitoring result indicates that after the initial impoundment,the deformation,seepage and stress and strain of the dam,energydissipation structures and slopes and landslide mass vary continuously without large abnormal mutation and the process and distribution law of the variation are basically reasonable.After comprehensive analysis,the impoundment process of Sanhekou RCC arch dam is safe and controllable and the operation of the dam is in a normal state.

关 键 词：蓄水 位移变形 渗流渗压 应力应变 安全监测 碾压混凝土拱坝 三河口水利枢纽 

分 类 号：TV642.4[水利工程—水利水电工程] TV698.1