基于统计模型的低水头混凝土重力坝垂直位移影响因素分析  

Statistical model-based analysis on influence factors of vertical displacement of low head concrete gravity dam

作　　者：祖安君 ZU Anjun(, State Key Laboratory of Hydrology Water Resources and Hydraulic Engineering, Hohai University, Nanjing 210098, Jiangsu, China;, College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, Jiangsu, China)

机构地区：[1]河海大学水文水资源与水利工程科学国家重点实验室,江苏南京210098 [2]河海大学水利水电学院,江苏南京210098

出　　处：《水利水电技术》2018年第5期50-56,共7页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金重点项目(51739003;41323001);国家重点研发计划(2016YFC0401601);国家重点实验室专项基金(20145027612;20165042112)

摘　　要：结合某混凝土重力坝实例,基于不同时期、不同仪器获得的垂直位移监测资料,建立了垂直位移统计模型,并利用Dam Data Analysis统计软件,对实测数据进行建模分析,探讨分析了坝顶垂直位移在不同监测阶段的变化规律。结果表明,对于低水头混凝土重力坝,温度分量是影响坝顶垂直位移的主要因素,水压分量和时效分量也对垂直位移有一定影响,但影响较小。研究成果可应用于大坝安全监测和管理工作中。Combined with an actual case of concrete gravity dam,a statistical model of vertical displacement is established in accordance with the monitoring data of its vertical displacement obtained with various instruments in various periods,and then the modeling analysis is made on the measured data with the statistical software—Dam Data Analysis,from which the variation laws of the vertical displacement of the dam crest during various monitoring stages are discussed and analyzed. The result shows that for the low head concrete gravity dam,the temperature component is the main factor to influence the vertical displacement of the dam crest,while the water pressure component and the time-dependent component have certain influences on the vertical displacement as well,but the influences are less. The study result can be applied to dam safety monitoring and management concerned.

关 键 词：DAM DATA Analysis 混凝土重力坝 统计模型 垂直位移 安全监测 

分 类 号：TV698.1[水利工程—水利水电工程]