摘要
采用暗挖法施工的地铁站体,施工难度较大,在站体上方或附近存在重要的建(构)筑物时,难度及风险则进一步增大。不仅如此,如在开挖深度内存在地下水,则需要对地下水进行抽降,降水沉降与暗挖施工沉降相互叠加,无疑会加剧暗挖施工的难度及风险,为确保对暗挖施工沉降的实时管控,从理论到实际操作上,合理分解降水沉降与暗挖施工沉降,就显得非常必要。本文在这方面进行了有益的探索,这是一项非常科学、严谨和有实际意义的工作。
Using subsurface excavation method, the construction of subway station body is more difficult. The risk and difficulty will be further increased when there are important buildings （structures） over or near the station. If there is groundwater in the excavation depth, we should adopt the precipitation measures. The superposition of dewatering settlement and construction settlement will undoubtedly exacerbate the difficulty and risks of construction. In order to ensure real-time control of the construction settlement from theory to actual operation, it is very necessary to reasonably distinguish the settlement of dewatering and construction. This article is a beneficial exploration in this respect and it is a scientific, rigorous and practical significance work.
出处
《城市地质》
2015年第3期34-38,共5页
Urban Geology
关键词
地铁暗挖站
施工沉降
降水沉降
沉降叠加与分解
Subway station of using subsurface excavation method
Construction settlement
Dewatering settlement
The superposition and distinguish of settlement
