Experimental Study on Creep Characteristics of Coal under Uniaxial Compression

Yong Jie Yang; Ming Fu Guo; Dong Wei Chen

doi:10.4028/www.scientific.net/AMR.594-597.290

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 594-597Experimental Study on Creep Characteristics of...

Experimental Study on Creep Characteristics of Coal under Uniaxial Compression

Abstract:

Generally surrounding rocks of deep mine show the typical creep characteristics and the multi stage loading creep test of coal was carried out by MTS815 rock mechanical test system in this paper. Compared to the creep coefficient of other rocks, creep coefficient of coal is relatively small. Coal creep failure changes obviously when load level is higher than the threshold stress. The constitutive characteristics of creep failure of coal can be fitted preferably by the Cubic Polynomial.

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Periodical:

Advanced Materials Research (Volumes 594-597)

Pages:

290-293

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.594-597.290

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Online since:

November 2012

Authors:

Yong Jie Yang, Ming Fu Guo, Dong Wei Chen

Keywords:

CoAl, Constitutive Characteristics, Creep, Fitting, Stress Threshold Value

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References

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