›› 2012, Vol. 33 ›› Issue (2): 439-443.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Shear creep characteristics of sandstone under dry and saturated states

LI Nan1, 2, XU Hui2, HU Bin1   

  1. 1. Faculty of Engineering, China University of Geosciences, Wuhan 430074, China; 2. College of Civil Engineering and Architecture, Zhejiang University, Hangzhou 310058, China
  • Received:2010-07-20 Online:2012-02-10 Published:2012-02-14

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Abstract: Taking Wuhan Yangtze River tunnel as the project background, the shear creep tests on dry and saturated sandstones are conducted. Based on the test results, the effect of water on shear creep characteristics of sandstone and its mechanism are elaborated from both shear creep strain and mechanical properties. The results show that water can promote the development of creep strain and accelerate creep strain rate of sandstone and also decrease its creep rupture strength. Therefore, the effect of water on the creep characteristics of sandstone can not be ignored in the engineering design and construction of important project.

Key words: dry, water saturation, sandstone, shear creep characteristics

CLC Number: 

  • TU 45
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