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Application of CAE technology based on high performance computing in large-scale shield construction process

DING Junhong1,LI Genguo1,JIN Xianlong2,CAO Yuan2(1.Shanghai Supercomputer Center,Shanghai 201203,China;2.School of Mechanical Engineering,Shanghai Jiaotong University,Shanghai 200240,China)  
To improve the risk warning and preventive measures in shield construction,based on the research achievements in recent years,a large-scale 3D numerical model is established to simulate virtually the various complicated steps and environmental factors in slurry shield tunneling construction with simplified method.The Dawning supercomputer and ANSYS parallel solvers are used to guarantee the pre/post treatment and solving of a great number of calculating cases.This method is applied to the shield construction of the two tunnels across the Yangtze River,and the results show that it can predict effectively the soil layer settlement,lining distortion,shield machine posture,and so on,during the shield tunneling process.
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