南水北调配套工程基坑支护优选  

The optimization of retaining and protection of foundation pit for auxiliary project of South-to-North Water Diversion Project

作　　者：李红涛 张瑞雪 姚高岭 

机构地区：[1]河南省水利勘测设计研究有限公司,郑州450016

出　　处：《南水北调与水利科技》2015年第B02期148-149,153,共3页South-to-North Water Transfers and Water Science & Technology

摘　　要：河南省南水北调配套工程管道全长约1000km，管道穿越较大道路、建筑物密集区一般采用顶管穿越，往往这些位置因开挖范围大、距离建筑物近、交通量大等因素不利于大开挖，顶管工作井及接收井基坑只能采用支护方式，把影响降到最低。以河南省南水北调配套工程为例，就有关基坑支护优缺点进行分析，介绍了不同基坑支护效果，尤其是对沉井施工法支护在城市中应用应注意事项进行了分析，供类似工程借鉴。The pipeline has the total length of about 1000 km for auxiliary project of South-to-North Water Diversion Project within Henan province. In case of unfavorable factors, such as large excavation scope, closing to buildings, and heavy traffic volume, pipe jacking shall be mostly a- dopted for pipeline crossing under larger road and compact district of building. Retaining and protection of foundation pit could only be adopted for operation shaft and receiving shaft of pipe jacking, and then adverse influence shall be reduced to a minimum. Takes auxiliary project of South-to-North Water Diversion Project within Henan province as an example, analysis has been given on advantages and disadvantages of retai- ning and protection of foundation pit, and different supporting effects have also been introduced on foundation pit, especially matters needing attention for the method of open caisson construction within urban area,which could be referenced for similar projects.

关 键 词：南水北调 配套工程 基坑支护 倒挂井 灌浆 优选 

分 类 号：TV551[水利工程—水利水电工程]