JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2009, Vol. 39 ›› Issue (5): 87-90.

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Critical load of rock salt roadbed with a spherical cavity

 ZHANG Dui-Fu, NIU Hai-Yan   

  1. Department of Engineering Mechanics, School of Civil Engineering, Shandong University, Jinan 250061, China
  • Received:2008-11-13 Online:2009-10-16 Published:2009-10-16

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Abstract:

The stress concentration of a spherical cavity in an infinite cube was studied by the three-dimensional elementfree Galerkin method. The maximal tensile stress criterion, Griffith criterion and Moore-coulomb criterion was respectively taken as the stability criterion. The stability of a rock salt roadbed with a spherical cavity was numerically simulated. The critical load of a rock salt roadbed with different cavity depth was given.

Key words: element free galerkin method; spherical cavity; rock salt roadbed; critical load

CLC Number: 

  • TU448
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