水电站厂坝联结形式优选与取消伸缩节研究  

Optimizing Selection of the Form of Connection between Dam and Powerhouse and Research of Cancelling Expansion Joint

作　　者：张多新[1] 谢巍[1] 刘东常[1] 

机构地区：[1]华北水利水电学院,河南郑州450011

出　　处：《华北水利水电学院学报》2008年第5期18-22,共5页North China Institute of Water Conservancy and Hydroelectric Power

摘　　要：针对水电站厂坝之间联结形式及取消厂坝间伸缩节问题,以龙开口水电站为实践对象,考虑厂坝分缝、钢衬与外包混凝土之间的初始缝隙、管坝之间的相互影响等因素,采用三维有限元技术,建立典型坝段、厂房和引水管道及河床整体力学分析模型,着重研究了组合工况下垫层钢管分缝两侧结构的相对位移大小和过缝管道附近钢管的应力水平高低以及组合工况中单一因素对结构影响的敏感程度,得出龙开口水电站可以采取垫层钢管替代伸缩节和将厂坝间分缝回填至管顶外包混凝土高程的厂坝联结形式等结论,为龙开口水电站及同类工程设计提供参考.Longkaikou Hydropower Station is taken as the practical object for the research of the connection form between dam and powerhouse and cancelling expansion joint,considering the influence of the crack between dam and powerhouse,the initial crack between steel liner and concrete cover and the mutual influence between penstock and dam,etc,3-dimentional finite element technique is adopted setting up the integral mechanical analysis model of typical part of the dam,powerhouse,diversion penstock and riverbed.The ...

关 键 词：水电站 垫层钢管 取消伸缩节 厂坝联结 

分 类 号：TV732.41[水利工程—水利水电工程]