摘要
天津滨海新区中央大道海河隧道为北方软弱地基条件下首条沉管隧道,最终接头基坑深度为26m,基坑宽度为40.48m,其中坞口宽度为46.4m,长度33.8m,且临近海河,地下水资源丰富。通过最终接头基坑的顺利施工,掌握了水源丰富、高水位、超深基坑等不利条件下基坑的施工技术,为沉管隧道对接施工奠定了基础。
Central Avenue in Haihe River tunnel of Tianjin Binhai New Area is the first immersed tube tunnel in the North China with soft ground condition, the final joint foundation excavation depth is 26m, width is 40.48m, the dock entrance width is 46.4m, the length is 33.8m, and near the Haihe River with rich underground water resources. By smooth construction of final joint foundation under adverse conditions such as abundant water, high water level, ultra deep foundation excavation, it provides the base for the construction of immersed tunnel joint.
出处
《施工技术》
CAS
北大核心
2014年第9期120-122,共3页
Construction Technology
关键词
基坑
降水
开挖
支护
监测
foundation excavation
dewatering
excavation
supports
monitoring
