向家坝工程大型沉井群混凝土施工技术  

Concrete Construction Technology for Large-scale Sunk Shaft of Xiangjiaba Project

作　　者：曹中升 齐界夷 张家涛 

机构地区：[1]中国葛洲坝集团股份有限公司三峡分公司向家坝施工局,云南水富657800

出　　处：《水力发电》2010年第2期63-64,67,共3页Water Power

摘　　要：向家坝水电站大型沉井群由10个大型沉井组成,沉井混凝土施工具有工程量大、结构复杂、施工难度大、建设工期紧等特点。该项目成功采用整体滑模联动滑升技术,解决了沉井井身混凝土快速上升问题;并首创了沉井填芯采用堆石混凝土,解决了空间狭小、作业难度大等施工问题,确保了沉井群施工正常进行,满足了施工质量与总进度要求,为向家坝水电站2008年按期截流奠定了基础。There are ten large sunk shafts in Xiangjiaba Hydropower Station.The structure of shaft is complex,the construction is difficult and the construction duration is limited.The overall formwork sliding technology is used in the concrete construction of sunk shaft for meeting the requirement on rapid lift of shaft,and the rock-filled concrete is firstly used for the inner grout of shaft to solve the problem of limited space.The quality and progress of sunk shaft construction is meet and provides a basis for the construction of closure schedule.

关 键 词：沉井群 混凝土 施工技术 向家坝水电站 

分 类 号：TU375[建筑科学—结构工程]