›› 2005, Vol. 26 ›› Issue (9): 1403-1408.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on flat shell-elastic hinge-foundation model in shield tunnel

HU Zhi-ping1, LUO Li-juan1, CAI Zhi-yong2   

  1. 1. School of Construction Engineering, Chang’an University, Xi’an 710061, China; 2. Zhejiang Zhongcheng Construction Group Co. Ltd., Shaoxing 312085, China
  • Received:2004-04-03 Online:2005-09-10 Published:2013-12-30

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Abstract: Based on the Reissner-Mindlin plate theory, with the study on the deformation character of longitudinal joint and ring joint of shield tunnel, the interaction between the segment lining and soil layers, a flat shell-elastic hinge-foundation model is proposed. Furthermore, the relevant software is developed. The flat shell element is formed by assembly of Reissner-Mindlin plate element which is taken for the bending part and shearing part, and membrane element, where the bending and membrane effects are uncoupled. The elastic hinge element is employed to simulate the impairment of moment around ring joint and the difference of stiffness around longitudinal joint under positive moment and negative moment. The proposed model demonstrates much advantage in 3D analyzing of shield tunnel, such as inner forces of structure rather than stress. Finally, the presented example shows the validity and effectivity of the model in analyzing of interval shield tunnel, the feasibility of the model and program to other underground structures.

Key words: shield tunnel, lining segments, flat shell, elastic hinge, elastic foundation

CLC Number: 

  • U 451.+4
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
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