Jiangsu Vocational Institute of Architectural Technology. 2018, (01)

Analysis of influence of tunnel construction on structure safety of existing gas pipelineChinese Full Text

ZHANG Long;QIN Yushi;HAN Wenjie;TIAN Zu’an;CHEN Jinliang;Department of Theoretical and Applied Mechanics,Chongqing University of Science and Technology;CCCC Tunnel Fourth Engineering Company Limited;

Abstract: In this paper,a 3 Dmodel of the proposed tunnel and the existing gas pipeline is established by ABAQUS software,and the "model change" units are used to simulate the step excavation and supporting.The settlement and plasticity of soil,stress of concrete supporting structure in excavation process are analyzed,and the settlement and stress distribution of existing gas pipeline are mainly studied.Numerical calculation shows that the maximum tensile stress,the maximum settlement value and the maximum stress of the pipe are not exceed the allowable value.Overall,the gas pipeline above is safe after the excavation of the tunnel.

Keywords：

tunnel construction; gas pipeline; structure safety; numerical simulation;

DOI：
10.19712/j.cnki.jsjyxb.2018.01.005
Series：
(C) Architecture/ Energy/ Traffic/ Electromechanics, etc
Subject：
Highway and Waterway Transportation; Architecture and Engineering
Classification Code：
TU996.7;U455.4

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Analysis of influence of tunnel construction on structure safety of existing gas pipelineChinese Full Text

ZHANG Long;QIN Yushi;HAN Wenjie;TIAN Zu’an;CHEN Jinliang;Department of Theoretical and Applied Mechanics,Chongqing University of Science and Technology;CCCC Tunnel Fourth Engineering Company Limited;

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