›› 2002, Vol. 23 ›› Issue (5): 575-578.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Real-time CT test of damage failure process of jointed rock sample in unloading confining pressure

REN Jian-xi1,2,3，GE Xiu-run1,2,4，PU Yi-bin2   

  1. 1. Shanghai Jiaotong University，Shanghai 200030, China; 2. State Key Laboratory of Frozen Soil Engineering , CAREERI, CAS, Lanzhou 730000, China; 3. Xi’an University of Science and Technology, Xi’an 710054, China; 4. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2002-03-01 Online:2002-10-10 Published:2016-09-04

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Abstract: It is the first time that using the newest specified loading equipment corresponding to the CT machine, the real-time computerized tomography testing of meso-damage propagation law of jointed rock sample with single crack under unloading confining pressure has been accomplished in rock mechanics fileld. Through CT scanning, the clear CT images are obtained to include the whole process of rock failure on unloading confining pressure from the crack development, penetration and fracture failure in the different stress states. It is clear that it is easy for failure phenomenon to happen suddenly in the process of unloading condition of jointed rock

Key words: jointed rock, unloading, CT real-time testing

CLC Number: 

  • TU 459+
  • 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.
  • 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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