岷江犍为航电枢纽三期围堰方案比选及实施  

Scheme comparison and implementation of Minjiang Qianwei navigation-power junction phase Ⅲ cofferdam

作　　者：符业晓 陈浩 FU Ye-xiao;CHEN Hao(The Fourth Engineering Company of CCCC Fourth Harbor Engineering Co.,Ltd.,Chengdu 610213,China)

机构地区：[1]中交四航局第四工程有限公司,四川成都610213

出　　处：《水运工程》2021年第12期54-59,共6页Port & Waterway Engineering

摘　　要：针对钢板桩和土石围堰在特定环境和条件下的适用性问题,结合工程边界条件,进行围堰方案适用性、材料来源的便利性、工程质量风险、施工工期及施工成本的研究,采用对比的方法,得出在工期紧、质量要求高、上游水头差大的工况下,土石围堰具有防渗效果更佳、成本更低的特点,更适合岷江犍为航电枢纽三期围堰工程的结论,并在研究和实践的基础上提出土石围堰施工的重点、难点及可采取的技术措施和成效,对类似工程具有借鉴意义。Aiming at the applicability of steel sheet pile cofferdam and earth rock cofferdam in specific environment and conditions, combined with the engineering boundary conditions, we study the applicability of cofferdam scheme, convenience of material source, engineering quality risk, construction period and construction cost. Based on comparison, we come to the conclusion that under the working conditions of tight construction period, high quality requirements and large upstream water head difference, the earth rock cofferdam has the advantages of better anti-seepage effect and lower cost, and is more suitable for the phase Ⅲ cofferdam project of Qianwei navigation-power junction in Minjiang River. Based on the research and engineering practice, the key and difficult points of earth rock cofferdam construction and the technical measures and results are put forward, which may serve as reference for similar projects.

关 键 词：土石围堰方案 比选 实施 犍为航电枢纽 

分 类 号：U641[交通运输工程—船舶及航道工程]