江坪河水电站导流洞闸室段结构三维有限元分析  

Three-dimensional Finite Element Analysis of the Gate Chamber Structure of the Diversion Tunnel of Jiangpinghe Hydropower Station

作　　者：郑志强 刘勇 龚亚琦[2] ZHENG Zhiqiang;LIU Yong;GONG Yaqi(Hubei Energy Group Louishui Hydropower Co.,Ltd.,Enshi 445801,Hubei,China;Material and Engineering Structure Department,Yangtze River Scientific Research Institute,Wuhan 430010,Hubei,China)

机构地区：[1]湖北能源集团溇水水电有限公司,湖北恩施445801 [2]长江科学院材料与结构研究所,湖北武汉430010

出　　处：《水力发电》2020年第6期61-65,99,共6页Water Power

摘　　要：江坪河水电站导流洞已运行11年,下闸后闸室至堵头段衬砌将承受很大的外水压力,其封堵门设计挡水水头达137 m,且前期导流洞质量补充检测成果发现其存在一定的质量缺陷,为准确分析在闸门最高挡水水头情况下,不同缺陷模型组合下导流洞闸室段结构的应力及变形等情况,进行了三维有限元计算,对导流洞闸室段作出安全可靠性评价,并对相关缺陷提出相应的处理措施。The diversion tunnel of Jiangpinghe Hydropower Station has been in operation for 11 years. The lining of diversion tunnel from the gate chamber to the plugging section will withstand a large external water pressure after the gates are closed.The designed operation water head of the blocking gate is 137 m, and the supplementary quality inspection of the diversion tunnel found that there are certain quality defects. In order to accurately analyze the structure stress and deformation of gate chamber section under the combination of different defect models and under the condition of highest operation head, the diversion tunnel is calculated by three-dimensional finite element method, and the safety and reliability evaluation is made for the structure of gate chamber section. Corresponding measures are also proposed for treating relevant defects.

关 键 词：闸室 导流洞 有限元 应力 位移 江坪河水电站 

分 类 号：TV314[水利工程—水工结构工程] TV263