水电站厂坝联结形式与取消伸缩节研究  

Study on the connecting type and the measurement of canceling expansion joint between dam and powerhouse

作　　者：吴海林[1] 伍鹤皋[1] 张伟[1] 王从保[1] 

机构地区：[1]武汉大学水资源与水电工程科学国家重点实验室,武汉430072

出　　处：《水力发电学报》2006年第2期118-122,共5页Journal of Hydroelectric Engineering

摘　　要：本文结合某水电站的工程实际,采用三维有限元法,对整体模型进行静动力计算以及温度场和温度应力的计算,以研究取消厂坝间伸缩节的可行性。计算结果表明,以一定长度的伸缩管代替常规伸缩节,并采用将厂坝间分缝回填灌浆至管底高程的厂坝联结型式,可使结构位移和钢管应力满足使用要求。In combination with the practice of a hydropower station, the three-dimensional finite element method is used to study the feasibility of canceling the expansion joint between a dam and a powerhouse. In the course of study, static and dynamic computations as well as analysis of temperature field and temperature stress have been carried out. The results indicate that replacing the expansion joint by a penstock with outside cushion layer and using a favorable structural measure for connecting the dam and the powerhouse can meet the requirements of structural displacement and stress of steel penstock.

关 键 词：水工结构 伸缩节 三维有限元法 水电站 伸缩管 

分 类 号：TV31[水利工程—水工结构工程]