›› 2008, Vol. 29 ›› Issue (5): 1382-1386.

• Geotechnical Engineering • Previous Articles     Next Articles

Creep tests of soil around Guomao station of Beijing metro

LI Ye-long1, ZENG Qiao-ling2, XIAO Jun-hua2, XIANG Yan-yong2   

  1. 1.China Academy of Building Research Institute of Foundation Engineering, Beijng 100013 ,China; 2.School of Civil Engineering & Architecture, Beijing Jiaotong University, Beijing 100044, China
  • Received:2006-07-17 Online:2008-05-10 Published:2013-07-24

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Abstract: Guomao station of Metro No.10 line of Beijing city is designed to cross the pile-group foundation of Guomao ground overpass. In order to evaluate the effect of creep deformation of soil around the metro on long term safety of tunnel, bridge foundation and its upper structure, some drained triaxial creep tests of soil of this site had been carried out; and then the parameters of Mesri creep model, which was found to describe the creep character of the soil samples perfectly, had been given. The study indicates that soil around the tunnel has a small quantity creep deformation; and the speed of steady creep is slow. When soil is under low diviatoric stress, the calculated creep deformations with Mesri model consist with test results well; while under high deviatoic stress, the calculated results have a little difference with test results. However, Mesri creep model can describe the creep character of Guomao station soil perfectly.

Key words: Tunnel, soil, creep, Mesri model, interaction

CLC Number: 

  • U 456
  • 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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