大坝闸墩预应力自锁锚杆加固方案应力分析  

Stress Analysis of Dam Pier Reinforced by Prestressed Self-locking Anchor

作　　者：廖杰洪 谭星舟 LIAO Jiehong;TAN Xingzhou(Wuhan Jucheng Structure Group Co.,LTD.,Wuhan 430233,China;Engineering Research Center for Building Structure Testing and Reinforcement of the Ministry of Education,Wuhan University,Wuhan 430072,China)

机构地区：[1]武汉巨成结构集团股份有限公司,武汉430233 [2]武汉大学检测与加固教育部工程研究中心,武汉430072

出　　处：《河南水利与南水北调》2024年第11期49-51,共3页Henan Water Resources & South-to-North Water Diversion

摘　　要：利用既有水电站作为抽水蓄能电站下库时,水位增高,闸门推力增大,导致既有闸墩承载力不满足要求。针对增设超大预应力扩孔自锁锚杆方案,利用有限元分析方法对该方案进行了分析,结果表明采用该方法能有效降低闸墩拉应力极值。When an existing hydroelectric power station is used as the lower reservoir of a pumped-storage power station,the water level rises and the thrust of the gate increases,resulting in the bearing capacity of the existing gate piers fail to meet the requirements.In this paper,a scheme of installing super-large prestressed self-locking anchor bar is proposed.The finite element analysis method is used to analyze the prestressed self-locking anchoring scheme,and the analysis results show that the method could effectively reduce the maximum tensile stress of the piers.

关 键 词：预应力 扩孔自锁锚杆 抽水蓄能 闸墩 水电站 

分 类 号：TV332[水利工程—水工结构工程]