Research on Rapid Construction and Risk Control Technology for Entrance and Exit of Subway Stations Under Complex Conditions
With the intensification of urban subway construction,the surrounding environment where the entrances and exits of subway station are located has become more complex.In order to ensure the safety of construction at the entrance and exit of the station,the slope section is mostly constructed by downward excavation.However,due to the constraints of ground occupation,open excavation section,and complex surrounding environment,the construction plan needs to be adjusted in a timely manner according to the actual situation.This article is based on the entrance and exit project of the East Bridge B on Beijing Subway Line 17 to study the rapid construction and risk control technology for entrances and exits of the subway station.It is proposed that while controlling the construction risks in the surrounding area,the slope section of the hidden excavation should be constructed using down-top excavation method,which ensures the construction period and speeds up the construction efficiey.However,the engineering experience that can be learned from applying this construction technology to the entrance and exit slope section is limited,and there are certain safety risks during the construction process.Therefore,it is necessary to take effective construction control measures.
entrance and exitdown-top excavation methodrapid constructionrisk control
NETL
NSTL
万方数据
