Study on Construction Technology of Upside-down Shaft Lining in Open Excavation Section of Subway Station Entrance and Exit
In view of the problems of the traditional subway station cut and cover construction,such as large area and great influence on traffic,the construction technology of the open-cut section at the entrance and exit of the station using the upside-down shaft wall method is studied.Taking Beijing Fangshan North Line 02 Bid Head Economic and Trade Station as the research background,through the analysis of the principle of upside-down shaft lining technology,the key technology and technical control measures of this technology construction are studied.This paper focuses on the analysis of the concrete construction process of the upside-down shaft lining of No.A entrance and exit,and analyzes the construction effect from three aspects.The research shows that the upside-down shaft lining method has the advantages of small occupation of construction site,less economic cost,less stratum disturbance,stronger soil and less influence on surrounding buildings and underground pipelines.The successful application of this technology provides valuable engineering reference for similar open-cut projects with limited site and near important buildings.
Inverted borehole wall methodSubway entrance and exitShaftMiddle next doorStrata disturbance
国家科技期刊平台
NSTL
万方数据
