天生桥一级面板堆石坝面板挤压破损原因及切槽软缝修复的影响  

Causes of Extrusion Damage in I CFRD of Tianshengqiao and Grooving Repairing

作　　者：吕高峰 LV Gao-feng(Hangzhou National Dam Safety and Emergency Engineering Technology CO.,LTD.,Hangzhou 311122,China;Power China Huadong Engineering Corporation Limited,Hangzhou 311122,China)

机构地区：[1]杭州国家水电站大坝安全和应急工程技术中心有限公司,浙江杭州311122 [2]中国电建集团华东勘测设计研究院有限公司,浙江杭州311122

出　　处：《浙江水利水电学院学报》2020年第6期27-33,共7页Journal of Zhejiang University of Water Resources and Electric Power

摘　　要：天生桥一级面板堆石坝的面板在运行过程中曾多次发生挤压破损现象。通过监测成果、运行条件、面板自身受力条件和面板自身结构等四个方面,分析面板挤压破损的原因,主要包括变形过大、高温低水位工况、面板自身受力条件及压性缝构造。2015年分析切槽设置软缝对面板挤压的影响,并开展面板进一步挤压情况的预测,认为面板进一步发生大面板挤压破损的可能性不大。经过5年多的运行,面板实际运行情况与预测情况一致。The panel of I CFRD in Tianshengqiao has been damaged by extrusion for many times during its operation.Through the monitoring results,operation conditions,the stress conditions of the panel itself and the structure of the panel,the causes of the panel extrusion damage are analyzed,the main causes of the panel extrusion damage are the excessive deformation,high temperature and low water level conditions,the stress conditions of the panel itself and the compressive joint structure.In 2015,the influence of soft joint slotted on panel extrusion was analyzed,and the further extrusion situation of panel was predicted.It was considered that the possibility of further large panel extrusion damage was small.After more than five years of operation,the actual operation of the panel is consistent with the forecast.

关 键 词：面板堆石坝 挤压破损 切槽修复 应力应变 压性缝 

分 类 号：TV698.1[水利工程—水利水电工程]