特定条件下水下快速封堵施工技术  

Construction technology of underwater rapid blocking in specific conditions

作　　者：简震 于庆 JIAN Zhen;YU Qing(Sinohydro Bureau 5 Co.,Ltd.,Chengdu 610066,China)

机构地区：[1]中国水利水电第五工程局有限公司,四川成都610066

出　　处：《水运工程》2021年第12期79-83,共5页Port & Waterway Engineering

摘　　要：针对发电厂房基坑被淹没的问题,进行了水下封堵研究。岷江犍为航电枢纽工程采用“水下作业+临时封堵体+背后支撑+平压装置”的封堵方案,克服了作业空间受限、工期短、难度大、安全隐患突出等诸多问题,历时9 d成功封堵了交通廊道,确保工程进度和工程安全。该成果填补了该领域研究的空白、奠定了研究的基础,同时形成了发明专利一项。Aiming at the submergence of the foundation pit of the power plant,the underwater blocking research is carried out.The Minjiang Qianwei navigation-power junction adopts the blocking scheme of“underwater operation+temporary blocking body+back support+flat pressure device”,which overcomes many problems such as limited working space,short construction period,high difficulty,and prominent safety hazards.It takes 9 days to successfully block the traffic corridor to ensure the progress and safety of the project.This result has filled the research gaps in this field,laid the foundation for research,and formed an invention patent at the same time.

关 键 词：交通廊道 水下快速封堵 封堵体 水下混凝土 犍为航电枢纽 

分 类 号：U641[交通运输工程—船舶及航道工程]