Rock and Soil Mechanics ›› 2018, Vol. 39 ›› Issue (S2): 344-350.doi: 10.16285/j.rsm.2018.1120

• Geotechnical Engineering • Previous Articles     Next Articles

Mechanical analysis of frozen soil wall of vertical mine in unloading state

LIU Yang-hui1, 2, HU Xiang-dong1, 2   

  1. 1. Department of Geotechnical Engineering, Tongji University, Shanghai 100083, China; 2. Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 100083, China
  • Received:2018-06-25 Online:2018-12-21 Published:2019-01-06

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Abstract: Based on the model of interaction of frozen soil wall and surrounding earth mass in unloading state, the stress and displacement analysis of frozen soil wall of vertical mine is carried out. Then the analytical solutions for stress field and displacement field are derived; and the relationship between the state and the design thickness of frozen wall is acquired as well. According to the solution, the outer surface load and inner surface displacement of frozen wall in different states are derived. Finally, the application of analytical formula is analyzed with an engineering example; and the calculated results from the solution are in good consistency with the monitoring results.

Key words: artificial ground freezing, frozen wall, mechanical model, stress field, displacement field

CLC Number: 

  • O 344.3
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