›› 2003, Vol. 24 ›› Issue (1): 93-96.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental study on dilatancy nature of the rock post-peak behavior

JING Hong-wen1,2   

  1. 1. College of Architecture and Civil Engineering, China University of Mining and Technology, Xuzhou 221008， China; 2. Department of Geotechincal Engineering, Tongji University, Shanghai 200092, China
  • Received:2001-11-19 Online:2003-02-10 Published:2014-08-27

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Abstract: By using the testing system MTS815 with hydro-electrical servo controllers, the 18 marble specimens have been tested respectively under six different confining pressures; and the changing condition of dilatancy force and volumetric strain in the whole stress-strain process has been obtained. According to the analysis of results obtained in tests, the changing law of rock strength, dilatancy force and volumetric strain with change of confining pressure has been discovered. The mechanism of surrounding rocks’ large deformation of high-stress roadways and the interactive relation of support and surrounding rocks may be brought to light.

Key words: different confining pressure, dilatancy, optimum support force

CLC Number: 

  • TU 458
  • 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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