›› 2006, Vol. 27 ›› Issue (S1): 564-568.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

In-situ test and data analysis of frost-heave force of Kunlun Mountain Tunnel

ZHANG Jun-ru，QIU Wen-ge   

  1. School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China
  • Received:2006-05-10 Published:2006-12-15

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Abstract: Frost-heave force is one of the main reasons to create disease of supporting structure in frozen soil tunnel; in order to master the distribution shape and the regularity as change as temperature of frost-heave force of Kunlun Mountain Tunnel in permefrast area, in-situ test was carried out. The research results show: by far, the whole supporting structure of Kunlun Mountain Tunnel was safe and reliable; frost-heave force was as change as temperature and season; the change would go to stabilize after 2004, the Max testing frost-heave force was 0.3 MPa, it located in the arch invert between surrounding rock and preliminary bracing; the frost-heave force between preliminary bracing and lining was very small; the supporting strength of lining would consider weaken properly; the frost-heave force envelope curve was plotted by using influence line theory; and it offers a proper and effective method to determine the most disadvantage load which act on the supporting structure.

Key words: Kunlun Mountain Tunnel, frost-heave force, in-situ test, envelope curve

CLC Number: 

  • TU 454
  • 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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