隧道小空间基坑分层先核心土开挖施工方法

Excavation and Construction Method of Core Soil Excavation in the Foundation Pit of Tunnel

土方工程是基坑工程中重要的一项内容,安全、快速、经济的土方开挖施工方法不仅可以保证基坑的质量和安全,还是减少施工总工期和成本的一个重要手段。论文结合实体工程成功实践,详细阐述了基坑分层先核心土开挖施工方法,该工法施工安全,进度快,经济效益明显,解决了施工净空较小的基坑工程土方开挖问题。

Earthworks is a part of foundation pit engineering. Safe, fast and economical excavation construction method can not only ensure the quality and safety of foundation pit, but also reduce the total construction time, and it is one important means of cost. In the light of the successful practice of the project entity, excavation layered first core soil excavation construction method is detailed, and the method is the construction safety, progress fast, economic benefits obvious; it solve the construction clearance smaller excavation earthwork excavation