ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2014, Vol. 34 ›› Issue (增刊): 111-116.DOI: 10.3973/j.issn.1672-741X.2014.S.018
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WANG Yulong1, XU Bin2
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Abstract:
This paper tries to understand the mechanical characteristics of segment lining structure and tries to solve the difficulties in numerical analysis on segment lining structure. First, the joint mechanics model of segment ling is established, and the joint bending stiffness is then determined by simulating load test using largescale analysis software ANSYS. Secondly, mechanic analysis is carried out by beamspring analysis model using the combin7 element; The simulation results are compared with the calculation results of the conventional method and the modified conventional method, according to the different treatments of segment joint in mechanics. At last, the mechanical behavior of segments in longitudinal direction under the pushing force of the thrust cylinders is analyzed, the corresponding simplified threedimensional simulation method is then established, and comparative analysis is made on uniform pushing force and asymmetric pushing force. The research results can provide support for the design of lining segments of shield tunnels.
Key words: shield, lining segment, joint bending stiffness, pushing force of thrust cylinder, mechanic analysis
CLC Number:
U 45
WANG Yulong, XU Bin. Mechanical Analysis on Segment Lining Structure in Shield Tunneling Stage[J]. Tunnel Construction, 2014, 34(增刊): 111-116.
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URL: http://www.suidaojs.com/EN/10.3973/j.issn.1672-741X.2014.S.018
http://www.suidaojs.com/EN/Y2014/V34/I增刊/111
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