施工技术
施工技術
시공기술
CONSTRUCTION TECHNOLOGY
2014年
9期
120-122
,共3页
基坑%降水%开挖%支护%监测
基坑%降水%開挖%支護%鑑測
기갱%강수%개알%지호%감측
foundation excavation%dewatering%excavation%supports%monitoring
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。
天津濱海新區中央大道海河隧道為北方軟弱地基條件下首條沉管隧道，最終接頭基坑深度為26m，基坑寬度為40?48m，其中塢口寬度為46?4m，長度33?8m，且臨近海河，地下水資源豐富。通過最終接頭基坑的順利施工，掌握瞭水源豐富、高水位、超深基坑等不利條件下基坑的施工技術，為沉管隧道對接施工奠定瞭基礎。
천진빈해신구중앙대도해하수도위북방연약지기조건하수조침관수도，최종접두기갱심도위26m，기갱관도위40?48m，기중오구관도위46?4m，장도33?8m，차림근해하，지하수자원봉부。통과최종접두기갱적순리시공，장악료수원봉부、고수위、초심기갱등불리조건하기갱적시공기술，위침관수도대접시공전정료기출。
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.
