观音岩水电站临时封堵门结构及其加固措施  

Structure of the Temporary Plugging Door and Reinforcement Measures of the Guanyinyan Hydropower Station

作　　者：陈旭[1] 徐池[1] 王志[2] 顾晓庆[2] 

机构地区：[1]中国水利水电第七工程局有限公司,成都610081 [2]河海大学水文水资源与水利工程科学国家重点实验室,南京210098

出　　处：《南水北调与水利科技》2012年第A01期144-146,共3页South-to-North Water Transfers and Water Science & Technology

基　　金：河海大学水文水资源与水利工程科学国家重点实验室专项基金（2009586012）

摘　　要：观音岩水电站混凝土重力坝施工采用分期导流度汛即先浇筑左右岸坝段，河床中部坝段后期浇筑。后期左右岸坝体基础灌浆廊道已经施工完成，而导流明渠仍在运用，因此需采用临时封堵门工程措施以防止灌浆廊道被淹没。针对临时封堵门存在的水荷载较大等问题，采用有限元法，分析了封堵门的工作性态并就其变形不满足规范要求提出全断面楔子施工和对封堵门进行钢支撑等加固措施，验证了加固后封堵门的强度和稳定性满足规范要求，并综合评价了临时封堵门的合理性和有效性。The construction of concrete gravity dam of Guanyinyan hydropower station took the stage--diversion scheme, that is, pouring left and right bank of the dam first and the middle later. However the foundation grouting corridor of the left and right bank of the dam had already completed while the diversion channel was still used which made it necessary to take the temporary plugging door to prevent the grouting corridor submerged. According to the large water load and some other problems, the finite element method was applied to analyze the structure state of the temporary plugging door and some reinforcement measures were proposed such as full-face wedge construction and steel supporting to deal with the deformation without meeting the specifications. And the strength and stability meeting the requirement after taking the reinforcement measures was then proved. At last, the rationality and effectiveness of the temporary plugging door was comprehensively evaluated.

关 键 词：临时封堵门 廊道 加固措施 强度 稳定 

分 类 号：TV738[水利工程—水利水电工程]