坝下涵管柔性内衬加固技术及应用  

Reinforcement technology and application of flexible lining for culvert pipes under dams

作　　者：龚羊庆[1] 傅琼华[1] 王亚新 GONG Yangqing;FU Qionghua;WANG Yaxin(Jiangxi Provincial Institute of Water Science,Nanchang 330029,China;Shenzhen Weite Environmental Technology Co.,Ltd.,Shenzhen 518000,China)

机构地区：[1]江西省水利科学研究院,江西南昌330029 [2]深圳市巍特环境科技股份有限公司,广东深圳518000

出　　处：《水利建设与管理》2021年第9期49-52,共4页Water Conservancy Construction and Management

摘　　要：针对小型水库坝下涵管表层混凝土剥蚀老化和裂缝渗漏等非结构强度不足的病险问题,本文分析了传统加固技术的优缺点,提出了采用柔性内衬系统加固设计和施工技术要点。该系统通过灌注高强度浆料,将柔性内衬结构与原管壁紧密胶结连成一体,共同抵抗外荷载,具有良好的防渗性、耐久性、抗腐蚀性、抗裂性等优点。工程实践表明,该技术可靠、经济合理、成效显著,具有一定的应用价值。The advantages and disadvantages of traditional reinforcement technology are analyzed in the paper in view of the risk problems of non-structural strength deficiency such as denudation, aging and crack leakage of the surface layer concrete of culvert pipes under small reservoir dams, etc. The key points of reinforcement design and construction technology by adopting the flexible lining system are proposed. The flexible lining structure and the original pipe wall are closely cemented together to resist the external load together by pouring high strength slurry. It has the advantages of excellent anti-seepage, durability, corrosion resistance, crack resistance, etc. The engineering practice shows that the technology is reliable, economical and reasonable. The effect is significant. It has certain application value.

关 键 词：柔性内衬 坝下涵管 除险加固 

分 类 号：TV641.3[水利工程—水利水电工程]