温压耦合作用下岩石动态破坏过程和机制研究

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Abstract Coupling temperature and pressure exist in deep rock generally. Laboratory experiments and numerical simulation have been conducted to study mechanics and failure character of rock subjected to coupling temperature and pressure. The dynamic failure process of rock samples subjected to coupling temperature and pressure are investigated. The numerical simulation reproduces variation of rock failure properties subjected to coupling temperature and pressure. The dynamic failure mode of rock under coupling temperature and pressure and the difference of rock failure characteristics with different temperatures and pressures are found. The results show that the thermal expansion cause producing of rock thermal stress with increased temperatures，and the failure mode is similar to those with different temperatures when the axial pressure is the same. However，there is greater failure degree because of the stress release on samples surface and stress accumulation within samples with increased temperature.

Key words： rock mechanics numerical simulation coupling temperature and pressure rock impact dynamics

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	Articles by authors
	YIN Tubing1
	2
	LI Xibing1
	2
	GONG Fengqiang1
	2
	ZHOU Zilong1
	2
	GAO Ke1
	2

Cite this article:

YIN Tubing1,2,LI Xibing1, et al. STUDY OF DYNAMIC FAILURE PROCESSES AND MECHANISM OF ROCK SUBJECTED TO COUPLING TEMPERATURE AND PRESSURE[J]. , 2012, 31(S1): 2814-2820.

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https://rockmech.whrsm.ac.cn/EN/Y2012/V31/IS1/2814

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