铜街子水电站右岸心墙开槽前后应力变形分析  

Stress and Deformation Analysis of the Right Bank Core Wall of Tongjiezi Hydropower Project before and after Slotting

作　　者：杨庚鑫 陆嘉斌 张泽彬 陈家琦 马德萍 YANG Gengxin;LU Jiabin;ZHANG Zebin;CHEN Jiaqi;MA Deping(CHN Energy Dadu River Hydropower Development Co.,Ltd.,Chengdu Sichuan 610000;PowerChina Chengdu Engineering Corporation Limited,Chengdu Sichuan 610072;Chengdu Municipal Engineering Design&Research Institute Co.,Ltd.,Chengdu Sichuan 610000)

机构地区：[1]国能大渡河流域水电开发有限公司,四川成都610000 [2]中国电建集团成都勘测设计研究院有限公司,四川成都610072 [3]成都市市政工程设计研究院有限公司,四川成都610000

出　　处：《四川水力发电》2024年第4期79-85,共7页Sichuan Hydropower

摘　　要：为了恢复大渡河下游梯级河段鱼类生态连通,铜街子水电站在建成发电30年后进行鱼道增设。新建鱼道由右岸岸坡进行过坝布置,进行大坝上下游坝坡开挖,并开槽钢筋混凝土心墙进行鱼道过坝槽身施工,心墙开槽前后的应力和变形对铜街子水电站的安全运行起着举足轻重的作用。通过研究铜街子大坝的心墙开槽,利用三维有限元法对其进行结构应力分析和位移场分析,探究结构应力分布的一般规律和变形分布特点,其研究结果可指导心墙开槽施工期的安全管控,并对其它类似项目提供设计参考。In order to restore the ecological connectivity of fish in the lower reaches of Dadu River,Tongjiezi Hydropower Project added a fishway 30 years after its completion.The new fishway is arranged by the right bank slope to excavate the upstream and downstream dam slope,and the reinforced concrete core wall is slotted for the construction of the fishway through the dam.The stress and deformation of the core wall before and after slotting play an important role in the safe operation of Tongjiezi Hydropower Project.In this paper,the slotting of the core wall is taken as the research object,the structural stress analysis and displacement field analysis are carried out by using three-dimensional finite element method,and the general law of structural stress distribution and deformation distribution characteristics are explored.The research results can guide the safety management and control of the core wall slotting construction period,and provide design reference for other similar projects.

关 键 词：心墙开槽 应力变形分析 铜街子水电站 

分 类 号：TV641.25[水利工程—水利水电工程] TV741