›› 2004, Vol. 25 ›› Issue (3): 441-445.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Factors analysis of parallel underground pipelines displacements affected by pipe jacking

YU Zhen-yi1，WEI Gang2   

  1. 1. Ningbo Munieipal Design Institute of Architecture, Ningbo 315012, China； 2. Institute of Geotechnical Engineering, Zhejiang University, Hangzhou 310027, China
  • Received:2002-12-09 Online:2004-03-10 Published:2014-07-15

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Abstract: The parallel buried pipelines will be damaged by soil movements around pipe induced by pipe jacking. The displacements of parallel buried pipelines induced by pipe jacking are analyzed by 3D-FEM. Displacements of buried pipeline affected by injection slurry, alignments, the distance between pipeline and pipe jacking axis, the depth of buried pipeline, the materials of buried pipeline, the elastic modulus ratio between buried pipeline and soil are studied. The analysis results show that the more pressure of injection slurry and alignments, the more displacements of buried pipeline; the more buried pipeline apart from pipe jacking, the less displacements of buried pipeline; the more elastic modulus of buried pipeline, the more displacements of underground pipeline.

Key words: pipe jacking, underground pipelines, 3D-FEM, soil movements

CLC Number: 

  • TU 470
  • 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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