›› 2009, Vol. 30 ›› Issue (2): 393-398.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Elastic solution of sallow tunnels in clays considering oval deformation of ground

TONG Lei1, XIE Kang-he1, CHENG Yong-feng2, LU Meng-meng1, WANG Kun1   

  1. 1. MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Zhejiang University, Hangzhou 310058, China; 2. Beijing Electric Power Construction Research Institute of State Grid Corporation of China, Beijing 100055, China
  • Received:2007-06-01 Online:2009-02-10 Published:2011-01-27

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Abstract:

The deformation shapes around a tunnel cavity and the elastic solution for the prediction of the tunneling-induced ground deformations for shallow tunnels in the soft ground, are studied. A general ova deformation of ground is suggested and incorporated as the boundary condition of the displacement around the tunnel section. The difference between oval deformation and vertical translation ground deformation patterns on surface settlements and lateral deformation is investigated. The results indicate that oval deformation has a greater effect on lateral deformation than on surface settlements.

Key words: shallow tunnel, settlement, lateral displacement, oval deformation, elasticity, analytical solution

CLC Number: 

  • U 451+.2
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