Numerical Simulation on the Stress and Strain of Lining Structure with Double Shield Tunneling Construction

Feng Wang; Tie Jun Cui

doi:10.4028/www.scientific.net/AMR.605-607.2425

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 605-607Numerical Simulation on the Stress and Strain of...

Numerical Simulation on the Stress and Strain of Lining Structure with Double Shield Tunneling Construction

Abstract:

This paper takes the Section 201 of shield construction engineering in Dalian Metro Line 2 as an example to analyze the deformation law of surrounding soil and the tunnel lining structure stress during shield tunnel construction. The shield tunnel construction is simulated dynamically by ADINA and the shield tunnel structure model of the concrete lining is established. This model is a three-dimension nonlinear finite element calculation model concerned with the grouting soil and original state soil. Taking the soil lithology in the upper layer and interact influences, we analyzed the dynamic process of shield construction, soil grouting and lining supporting and the stress distribution in difference reinforced concrete supporting segments and the ground settlement characteristics. Through numerical analysis method to study the deformation law of soil surrounding tunnel and the stress in tunnel lining, we get the results to compare with the results of Peck formula under the same condition. After generating the conclusions, we can provide several suggestions for shield tunneling construction, lining segment design and control of the ground surface settlement during the construction.

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Periodical:

Advanced Materials Research (Volumes 605-607)

Pages:

2425-2429

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.605-607.2425

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Online since:

December 2012

Authors:

Feng Wang, Tie Jun Cui

Keywords:

Double-Tube Parallel Tunnel, Numerical Simulation, Segment Lining, Stress and Deformation

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