Acoustic emission characteristics and strength variation of skarn under true triaxial test

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	Acoustic emission characteristics and strength variation of skarn under true triaxial test
	Xu, S. C.1; Feng, X. T.2; Chen, B. R.2
	2012
会议日期	OCT 14-16, 2011
会议地点	Beijing, PEOPLES R CHINA
页码	215-220
英文摘要	Aiming at dealing with the brittle failure in the backstopping process at Shi Zhuyuan polymetallic mine, a series of biaxial test, true triaxial test and triaxial unloading test for skarn with different loading paths were carried out using the true triaxial loading apparatus and AE system, and some rules of strength, AE activities and energy releasing process were found out. The results indicate that intermediate effect exists under these loading methods for skarn which the strength increases at first then decreases with the increment of intermediate principal stress. With the variation of biaxial, true triaxial and true triaxial unloading tests, the AE accumulated hits increase gradually and the AE energy show an evolution process from abruptly transient releasing to progressive accumulative releasing. Under the same loading method, as the intermediate principle increases by degrees, the starting point of rock failure stage moving forward gradually, and the accumulative characteristics of energy releasing process becomes obvious.
源文献作者	Cai, M
会议录	ROCK MECHANICS: ACHIEVEMENTS AND AMBITIONS
会议录出版者	CRC PRESS-TAYLOR & FRANCIS GROUP
会议录出版地	BOCA RATON
语种	英语
WOS研究方向	Engineering
WOS记录号	WOS:000347395400038
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4656]
专题	岩土力学所知识全产出_会议论文
作者单位	1.Shenyang Univ, Sch Architecture & Civil Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech
推荐引用方式 GB/T 7714	Xu, S. C.,Feng, X. T.,Chen, B. R.. Acoustic emission characteristics and strength variation of skarn under true triaxial test[C]. 见:. Beijing, PEOPLES R CHINA. OCT 14-16, 2011.