锦屏一级水电站坝体倾斜监测成果分析

Analysis of the Dam Body Tilt Monitoring Results of JinpingⅠHydropower Station

目前,针对拱坝水平位移、垂直位移和接缝变形的研究较多,而针对拱坝倾斜观测的资料较少。拱坝倾斜是拱坝在外荷载作用下的综合反映,因此也是判断拱坝工作性态的一种重要途径。笔者根据锦屏一级水电站拱坝多年倾斜变形的监测资料,进行分析研究,并拟定统计模型,以便了解影响拱坝倾斜变形的主要因素,并预测大坝的运行状况。

At present,there are many researches on the horizontal displacement,vertical displacement and joint deformation of arch dams,but few observational data on tilt of arch dams.The inclination of an arch dam is a comprehensive reflection of the arch dam under the action of external loads,so it is also an important way to judge the working performance of the arch dam.This article analyzes and studies the monitoring data of the tilt deformation of the arch dam of JinpingⅠydropower Station over the years,and develops a statistical model to understand the main factors affecting the tilt deformation of the arch dam and predict the operation status of the dam.