拱坝变形监测预报模型研究  

Study on the Monitoring and Forecasting Model for Deformation of Arch Dam

作　　者：李步娟[1] 刘新平[1] 方朝阳[1] 

机构地区：[1]武汉水利电力大学

出　　处：《水利水电技术》1996年第7期10-15,共6页Water Resources and Hydropower Engineering

基　　金：自然科学基金;华中电力集团公司资助

摘　　要：采用力学方法计算拱坝变形的水压分量和拱坝各水平截面原度方向的平均温度Rm和线性温差Td，但仍用统计方法选取变形的温度因子和时效因子，从而建立拱坝变形混合模型作为预报模型．其中，变形水压分量的计算采用了有限元法和拱架法；Tm和Td的计算，分析了分段水位的选用，气温和水温对变形影响的滞后规律、水温相位差选用等问题．实践证明，该模型具有计算简便，适应性广，预报效果好等特点。This paper calculates the component of water pressure and the temperature field of arch dam with mechanical method, and selecting temperature factor and time-effect factor with statistics method. From that the deformation hybrid model of arch dam as a forecasting model was set up and was used in actural engineering. The practice proves that this m0del has advantages: easy to calculate, good adaptabiity and good forecasting result.

关 键 词：拱坝 变形监测 预报模型 

分 类 号：TV642.4[水利工程—水利水电工程]