结合渗流应力监控及有限元分析的大坝危险性监测研究  

Research on Dam Hazard Monitoring Combining Seepage Stress Monitoring and Finite Element Analysis

作　　者：宋军博 SONG Jun-bo(Shenzhen Water Planning&Design Institute Co.Ltd.,Shenzhen 518000,Guangdong,Chian)

机构地区：[1]深圳市水务规划设计院股份有限公司,广东深圳518000

出　　处：《水利科技与经济》2024年第9期58-63,92,共7页Water Conservancy Science and Technology and Economy

摘　　要：大坝是保证水库正常运行的核心部分,因此对大坝的危险性监测至关重要。研究提出渗流应力监控混合模型,采用有限元和统计模式计算模型分量。结果表明,通过对大坝各变量进行预测,实测值与预测值接近,能够描述测点水平位移、应力和渗流的变化趋势;F检验显著性水平为0<0.001,回归分析显著,复测定系数R^(2)分别为0.883、0.859、0.977,接近于0.9或1。表明研究提出模型能有效预测大坝危险性情况,对水利大坝安全监测具有参考意义。Dams are the core part of ensuring the normal operation of reservoirs,therefore monitoring the danger of dams is crucial.The study proposes a mixed model for monitoring seepage stress,which uses finite element and statistical models to calculate the model components.The results show that predicting the variables of a certain dam,the measured values are close to the predicted values,and can describe the trend of horizontal displacement,stress,and seepage at the measurement points;the significance level of F-test is 0<0.001,and the regression analysis is significant;the retest coefficients R^(2) are 0.883、0.859 and 0.977,respectively,close to 0.9 or 1.It can be seen that the proposed model can effectively predict the danger situation of dams,and has reference significance in the safety monitoring of water conservancy dams.

关 键 词：渗流 应力 监测 危险性 有限元分析 大坝 

分 类 号：TV698.1[水利工程—水利水电工程]