›› 2004, Vol. 25 ›› Issue (1): 1-4.

• Fundamental Theroy and Experimental Research •     Next Articles

Mechanical properties of soft rock under dynamic uniaxial compression

LI Hai-bo1, WANG Jian-wei2, LI Jun-ru1, ZHOU Qing-chun1, LIU Ya-qun1   

  1. 1.Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China; 2.Yellow River conservancy technical institute, Kaifeng 475001, China
  • Received:2003-02-28 Online:2004-01-10 Published:2014-07-15

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Abstract: The experimental study on soft rock (analogized with mortar) under dynamic uniaxial compression at the strain rates from 10-5 to 101 s-1 has been carried out. It is indicated that the compressive strength of the soft rock increases with the increasing strain rate; and the rising rates are higher than that of hard rock. The Young’s modulus and Poisson’s ratio of the soft rock increase with the increasing strain rate, but the rising rates are less than that of compressive strength. In addition, based on the SEM results, the mechanism of the strain rate effect of the soft rock is primarily analyzed.

Key words: dynamic uniaxial compression, soft rock, mechanical properties

CLC Number: 

  • TU 458.+4
  • 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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