犍为航电枢纽船闸施工期闸墙挡水度汛工程实践  

Flood control engineering practice of ship lock wall during construction in Qianwei navigation-power junction

作　　者：陈和东 曾超 韦海超 CHEN He-dong;ZENG Chao;WEI Hai-chao(Sichuan Minjiang Port Navigation Power Development Co.,Ltd.,Leshan 614401,China)

机构地区：[1]四川岷江港航电开发有限责任公司,四川乐山614401

出　　处：《水运工程》2021年第12期69-72,78,共5页Port & Waterway Engineering

摘　　要：岷江犍为航电枢纽工程采用三期六段的施工导流方案,确保施工期不断航。针对三期工程工期紧、存在安全度汛风险的问题,在二期围堰导流施工期间,提出利用船闸左侧闸墙挡水度汛,在干地条件下提前拆除部分二期二段纵向围堰。结果表明,在山区河流大型船闸工程建设过程中采用闸墙挡水度汛的工程措施,能够减少水下拆堰工程量、提高纵向围堰拆除质量、缩短围堰拆除工期,具有显著的经济和社会效益。The Minjiang Qianwei navigation-power junction adopts the construction diversion scheme of three phases and six sections to ensure continuous navigation during the construction period.In view of the problems of tight schedule and safe flood control risk in the third phase of the project,we propose to use the left lock wall to block the water and control the flood control during the diversion construction of the second phase cofferdam,and to demolish part of the second phase longitudinal cofferdam in advance under dry land condition.The results show that in the construction process of large ship lock in mountainous rivers,the use of the gate wall to hold back water and control the flood season can reduce the amount of underwater weir removal,improve the quality of longitudinal cofferdam removal,shorten the demolition period of the cofferdam,which has the significant economic and social benefits.

关 键 词：犍为航电枢纽 施工导流 围堰 船闸 

分 类 号：U641.5[交通运输工程—船舶及航道工程]