Study on Construction Technology for Urban Tunnel Closely Passing beneath Existing Building

Qing Hao Guo

doi:10.4028/www.scientific.net/AMR.243-249.3484

Paper Titles

The Research of the Spectral Features of Vibration Signals from Underground Railway Based on Wavelet Transform
p.3463

The Study on the Construction Mechanical Behavior of the Shield Tunnel Crossing the Ultra-Deep Ventilation Shaft
p.3468

Study on the Construction Mechanic Behaviors of Different Cross-Section Shape Connected Aisle in the Shield Tunnel with High Hydraulic Pressure
p.3472

The Model Test Study on Frost Heaving and Melting Sedimentation of Subway Tunnel Construction with Manual Level Freezing Method
p.3476

Study on Construction Technology for Urban Tunnel Closely Passing beneath Existing Building
p.3484

Numerical Analysis of Construction Ventilation of Long Railway Tunnel in Plateau Area
p.3489

Coupling Analysis of Seepage and Stress in Jointed Rock Mass of Equivalent Continuum
p.3493

Analysis of Seismic Response of Water-Conveyance Tunnel with Shaft
p.3499

Digital Underground Space and Engineering
p.3503

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 243-249Study on Construction Technology for Urban Tunnel...

Study on Construction Technology for Urban Tunnel Closely Passing beneath Existing Building

Abstract:

The assessment of the interaction between a new tunnel and existing residential or office building is an important issue in urban area. In this study, special protection design for existing structures is introduced based on an actual engineering project of urban tunnel closely passing beneath an existing residential building. Cavern-pile construction method and deep grouting technique with ultra-advanced steel pipe are used in this project to efficiently control the settlement of the stratums on top of tunnel. Additionally, the effect of tunneling on the existing residential building is investigated through finite element calculations. The load condition, deformation and stability of the tunnel elements beneath building are also analyzed. Then, on the basis of calculated results, it is concluded that the new tunnel constructed by cavern-pile method causes small ground settlement, therefore it does not considerably affects the existing building. The safety of resident is guaranteed.