Title: Influence Analysis and Its Control of Surface Buildings During Construction of Large-Section Wind Tunnel of Subway Station
Abstract: Before the crossing project of tunnel in the city,a program about the control of the structure security,including several main aspects such as the assessment of the security status quo about building,the prediction of the effect tunnel construction on the settlement of building,the control of construction process,the assessment after tunnelling and the restoration of structure status,should be elaborate.The large-section construction of the northwest ventilation channel of Tiantandongmen subway station on Beijing Subway Line 5 needs to across loose and adverse geological conditions under Qingshanju antique architecture,travel services division and so on in Tiantan Park.Construction is very difficult and the risk is extremely high.According to the request of the control procedure about building security,numerical simulation of prediction and comparative analysis is developed on buildings affected by construction of subway tunnel;thus strata deformation mode and the corresponding control measures is expounded.Besides,in order to control the surface settlement strictly and keep buildings safe,integrated technology,which uses partition wall with root pile,grouting reinforcement in footing surface,pre-grouting in tunnelling,working face grouting and excavation control,is proposed to bring surface and building settlement under control.These methods ensure the tunnel construction can be carried out smoothly.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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