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《Journal of Yangtze River Scientific Research Institute》 2010-02
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Unified Strength Theory Constitutive Model Embedded Software ABAQUS and Its Application in Tunnel Engineering

WANG Jun-qi1,LU Feng2(1.Department of Hydraulic and Hydropower Engineering,North China Electric Power University,Beijing 102206,China;2.Institute of Water Resources and Hydropower Research,Beijing 100044,China)  
The unified strength theory constitutive model can be embedded nonlinear finite element software ABAQUS for providing the user subroutine second development function.A numerical test using thick wall cylinder as an illustration is completed,which gives the theoretical resolution and three dimension analysis of tunnel excavation.All numerical results indicate that the approach of adding the model to the ABAQUS enriches the material element library and enhances the computation efficiency and precision,meanwhile,by the example verification,the tunnel excavation simulation demonstrates that considering influences of middle main stress in geotechnical engineering,the method can fully utilize the material strength enough,guide the engineering practice and reduce investment outlay.
【Fund】: 中国水利水电科学研究院开放研究基金资助项目(IWHRO2009005)
【CateGory Index】: U451
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【Citations】
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2 HU Qi-zhi1,2,ZHOU Hui1,YANG Xue-qiang3 (1.Institute of Rock and Soil Mechanics,Chinese Academy of Sciences,Wuhan 430068,China;2.Institute of Civil Engineering,Hubei University of Technology,Wuhan 430068,China;3.Institute of Civil Engineering,Guangdong University of Technology,Guangzhou 510006,China);Effect on plastic strain through the non-smoothness management of corner singularity[J];Chinese Journal of Geotechnical Engineering;2009-01
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