›› 2006, Vol. 27 ›› Issue (5): 782-786.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Research on minimum depth burial of shield tunnel machines crossing over ground base under rivers

DAI Xiao-ping1, GUO Tao2, QIN Jian-she2   

  1. 1.Collage of Science, PLA University of Science and Technology, Nanjing 210007, China; 2.Research Institute of Geotechnical Engineering, Hohai University, Nanjing 210098, China
  • Received:2004-10-31 Online:2006-05-10 Published:2013-11-05

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Abstract: It is very important for the tunnel lining to determine the earth covering thickness as the rising force when the shield tunnel machine crosses over the ground base under rivers, lakes the sea, and so on. The authors bring forward a new method to calculate the earth covering thickness of the tunnel lining .The new method takes into account of the shearing strength of the soil that can resist the rising force, while the conventional method doesn’t consider that. The new method is more practical than the conventional method according to the computation in the case study. Finally, the authors analyze the stress and strain in the shallow earth covering by FEM; the result proves that the new method is more reasonable.

Key words: shield tunnel, earth covering thickness, shearing strength , finite element method

CLC Number: 

  • TV 554
  • 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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