吉林大学学报(工学版) ›› 2011, Vol. 41 ›› Issue (6): 1669-1674.

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Mechanical behavior analysis of shield segment structure

LI Chun-liang1,2, WANG Guo-qiang1, LIU Fu-shou3, ZHAO Kai-jun4   

  1. 1.College of Mechanical Science and Engineering, Jilin University|Changchun 130022, China|2.School of Communication Science &|Engineering| Jilin Architectural and Civil Engineering Institute, Changchun 130117, China|3.Jiangsu Provincial Communication Planning and Design Institute Co.,Ltd, Nanjing 210005, China|4.Shenyang Heavy Machinery Group Co., Ltd, Shenyang 110025, China
  • Received:2010-08-31 Online:2011-11-01 Published:2011-11-01

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Abstract:

A circumferential rigidity model and a circumferential inner force model of the shield segment were built based on the elasticity theory, and some related parameters of the segment joint were analyzed. The results showed that the inner forces calculated by the theoretical model coincide with the results by the finite element method, demonstrating a high accuracy. The rigidity model can reveal exactly the circumferential rigidity distribution in the shield segment structure. The maximal circumferential positive bending moment increases along with the reduction of the segment joint rigidity. The distribution of the circumferential bending moment changes with the changes of the joint number and the K block position.

Key words: engineering mechanics, tunnel engineering, shield, shield segment, segment joint, bending rigidity, Fourier series

CLC Number: 

  • TB112
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