›› 2007, Vol. 28 ›› Issue (2): 307-310.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

A study of freezing deformation of tunnel surrounding rock in cold region

ZHANG Quan-sheng1, GAO Guang-yun1, YANG Geng-she2, PU Yi-bin3   

  1. 1. Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; 2. College of Architecture and Civil Engineering, Xi’an University of Science & Technology, Xi’an 710054, China; 3. State Key Laboratory of Frozen Soil Engineering, Cold And Arid Environmental Research Institute,CAS, Lanzhou 730000, China
  • Received:2005-06-28 Online:2007-02-10 Published:2013-08-28

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Abstract: As is known to all that the freezing-heaving mechanism of tunnel surrounding rock is a common problem of the tunnel in the cold region. Firstly, the several existent theories about freezing-heaving mechanism are introduced and evaluated. Secondly, the freezing experiment of rock sample is mode; after saturated, the rock samples from a cold region in West China. The CT scanning technology is applied to measure the meso-structure change of rock sample and the water transfer within the sample. The shrinkage phenomenon in volume has been found after the rock sample frozen. Finally, the freezing-heaving mechanism of tunnel surrounding rock is studied, which is believable to be helpful to the tunnel in the cold region.

Key words: tunnel in the cold region, surrounding rock, freezing, CT scanning, damage mechanics

CLC Number: 

  • U 451
  • 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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