复合式深水围堰防渗体系施工技术研究  

Research on Construction Technology for Composite Deep Water Cofferdam Anti-seepage System

作　　者：李胜春 周龙 郑松文 温凯智 LI Sheng-chun;ZHOU Long;ZHENG Song-wen;WEN Kai-zhi(Guangdong Yuantian Engineering Co.,Ltd.,Guangzhou 511340,China;South China Agricultural University,Guangzhou 510640,China)

机构地区：[1]广东省源天工程有限公司,广州511340 [2]华南农业大学,广州510640

出　　处：《广东水利电力职业技术学院学报》2024年第3期23-27,100,共6页Journal of Guangdong Polytechnic of Water Resources and Electric Engineering

摘　　要：百色水库工程是广西西北旱片治理的骨干工程,在银屯进水塔的全年围堰建设中遇到深水围堰压实度难以保证、防渗风险高等诸多问题。对此提出钢板桩接土工膜的复合式围堰方法,并对施工工艺流程、材料及施工方法等进行研究,提出相应规范要求,最终高质量完成了广西境内最高(43 m)的围堰工程施工。通过现场质量检查和渗流监测结果可知,该围堰防渗体系实现了深水区域高土石围堰的高防渗功能,上述举措也成为工程关键技术之一。The Baise Reservoir is a key project for the drought control in the northwest region of Guangxi.During the year-round construction of the cofferdam at the Yintun intake tower,various issues such as difficulty in ensuring the compaction of the deep-water cofferdam and high anti-seepage risks were encountered.In response,a composite cofferdam method using steel sheet piles combined with geomembrane was proposed.Research was conducted on the construction process,materials,and methods,and corresponding standards and requirements were established.Ultimately,the highest cofferdam construction in Guangxi(43 meters)was completed with high quality.Based on onsite quality inspection and seepage monitoring results,it can be seen that the anti-seepage system of the cofferdam has achieved high anti-seepage performance for the high earth-rock cofferdam in deep water areas.These measures have also become one of the key technologies of the project.

关 键 词：深水围堰 钢板桩 土工膜 复合式防渗 

分 类 号：TV551.4[水利工程—水利水电工程]