Journal of Northeastern University Natural Science ›› 2015, Vol. 36 ›› Issue (12): 1738-1742.DOI: 10.12068/j.issn.1005-3026.2015.12.015

• Resources & Civil Engineering • Previous Articles     Next Articles

Comparative Study on the Variation Features of Infrared and Microwave Radiation in Deformation and Fracture Process of Rock

XU Zhong-yin, LIU Shan-jun, WU Li-xin   

  1. School of Resources & Civil Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2014-12-16 Revised:2014-12-16 Online:2015-12-15 Published:2015-12-07
  • Contact: XU Zhong-yin
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Abstract: Multivariate information including infrared radiation, microwave radiation and strain were measured in uniaxial compressive experiments of rock. The result showed that infrared radiation and microwave radiation existed different staged variation features at various loading stages. The infrared radiation showed fluctuation in the initial loading stage, steady increase in elastic stage, rapid increase in the plastic stage and decrease in the fracture stage. The microwave radiation showed small decrease in the initial loading stage, steady increase in the elastic stage, decrease in the plastic stage and increase in the fracture stage. Two kinds of radiation information appeared different abnormal precursors of rock fracture, and the variation forms of precursors were just opposite. The combination of two detection technologies is favorable for detection of stress and disaster of rock.

Key words: remote sensing rock mechanics, microwave radiation, infrared radiation, stress, disaster

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