Impact of Double-O-Tube Shield Tunnel Construction on Independent Foundation Frame Building

Abstract:

Due to its better advantages, Double-O-Tube(DOT) shield has been widely applied in shield tunnel construction. But the impact caused by shield tunnel construction on buildings hasn’t been taken seriously. Considering the interaction of building-soil-tunnel, the independent foundation frame building vertical crossed by DOT shield tunnel was simulated by 3D MIDAS/GTS software, and the impact of construction on the building was analyzed. The results show that: during the passage of the shield tunneling through the building, the settlement of the building increased. The settlement was stable and had a little rebound when shield machine already passed the building. The building’s longitudinal displacement was great larger than lateral horizontal displacement. With the increase of driving distance, the first principal stress P₁ and maximum shear strain MS_max increased and then were stable. With the increase of L, the first principal stress P₁ and maximum shear strain MS_max tended to gradually reduce the security value, and the maximum differential settlement between columns increased first and then decreased. Finally, the safety of the building was assessed comprehensively.

• Periodical: Advanced Materials Research (Volumes 243-249)
• Pages: 3370-3375
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.243-249.3370
• Online since: May 2011
• Authors: Gang Wei, Jie Hong, Zhao Lin, Xin Jiang Wei
• Keywords: DOT Shield Tunnel, Finite Element Model (FEM), Independent Foundation, RC Frame Structure

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