犍为船闸重力式闸墙施工期挡水工程措施  

Water retaining engineering measures during construction period of Qianwei ship lock gravity lock wall

作　　者：周定科 李泳龙 吴礼国 ZHOU Ding-ke;LI Yong-long;WU Li-guo(Sichuan Communication Surveying and Design Institute Co.,Ltd.,Chengdu 610017,China)

机构地区：[1]四川省交通勘察设计研究院有限公司,四川成都610017

出　　处：《水运工程》2021年第12期94-98,共5页Port & Waterway Engineering

摘　　要：岷江犍为航电枢纽施工任务重、时间紧。为缩短施工工期、节省围堰的施工投资、满足枢纽工程整体进度计划及施工期通航要求,需拆除二期二段围堰,并在汛期利用船闸外侧重力式闸墙挡水继续施工。针对汛期利用船闸外闸墙挡水时结构的安全稳定问题,通过对不同挡水部位结构进行复核计算,提出相应的工程措施,满足结构安全稳定要求,确保犍为船闸施工工期并节省工程投资。The construction task of Qianwei navigation-power junction on Minjiang River is heavy and the time is short.In order to shorten the construction period,save the investment of cofferdam construction,and meet the overall schedule of the project and the navigation requirements during the construction period,it is necessary to remove the“second stage and second section cofferdams”,and use the gravity lock wall outside the ship lock to retain water during the flood season to continue construction.In view of the safety and stability of the structure when the external lock wall is used for water retaining in flood season,the paper puts forward the corresponding engineering measures by rechecking and calculating the structures of different water retaining parts,so as to meet the safety and stability of the structure,ensure the construction period of Qianwei ship lock,and save the project investment.

关 键 词：重力式闸墙 施工期挡水 工程措施 犍为船闸 

分 类 号：U641[交通运输工程—船舶及航道工程]