特高拱坝垂线位移监控的混合模型研究  

Hybrid Model Research on Vertical Displacement Monitoring of Ultra-High Arch Dams

作　　者：费新峰 袁占荣 马基栋 何欣 贾冬焱 Fei Xinfeng;Yuan Zhanrong;Ma Jidong;He Xin;Jia Dongyan(State Power Investment Group Qinghai Huanghe Power Technology Co.,Ltd,Xining 810000,Qinghai)

机构地区：[1]国家电投集团青海黄河电力技术有限责任公司,青海西宁810000

出　　处：《陕西水利》2022年第9期6-8,18,共4页Shaanxi Water Resources

摘　　要：特高拱坝作为一些重要水利枢纽的挡水建筑物,其结构的变形安全性态一直是其安全监测分析的重点。以拉西瓦双曲拱坝为例,基于其运行期位移监测数据,利用三维有限元计算大坝变形的水压分量,并结合最小二乘法统计模型计算的时效及温度分量,建立拉西瓦拱坝垂线位移的混合模型,并与实测数据资料进行对比,模型拟合精度较高,具有一定的工程应用价值。As a water retaining structure of some important water conservancy projects, the deformation safety behavior of ultra-high arch dam has always been the focus of its safety monitoring and analysis. Taking Laxiwa double curvature arch dam as an example, based on the displacement monitoring data during its operation period, the water pressure component of dam deformation is calculated by three-dimensional finite element method, and combined with the time effect and temperature component calculated by the least square statistical model, a hybrid model of vertical displacement of Laxiwa arch dam is established. Compared with the measured data, the model has high fitting accuracy, It has certain engineering application value.

关 键 词：拉西瓦拱坝 安全监测 垂线位移 混合模型 

分 类 号：TV642.4[水利工程—水利水电工程]