True-Triaxial Experimental Study of the Evolutionary Features of the Acoustic Emissions and Sounds of Rockburst Processes

doi:10.1007/s00603-017-1344-6

CORC > 武汉岩土力学研究所 > 中科院武汉岩土力学所 > 岩土力学所知识全产出 > 期刊论文

	True-Triaxial Experimental Study of the Evolutionary Features of the Acoustic Emissions and Sounds of Rockburst Processes
	Jiang, Quan 2; Zhang, Jie 1; Su, Guoshao 1,2; Shi, Yanjiong 1; Feng, Xiating2 ; Jiang, Jianqing 1
刊名	ROCK MECHANICS AND ROCK ENGINEERING
	2018
卷号	51 期号:2 页码:375-389
关键词	True-triaxial test Rockburst Acoustic emission Sound Signal analysis
ISSN号	0723-2632
DOI	10.1007/s00603-017-1344-6
英文摘要	Rockbursts are markedly characterized by the ejection of rock fragments from host rocks at certain speeds. The rockburst process is always accompanied by acoustic signals that include acoustic emissions (AE) and sounds. A deep insight into the evolutionary features of AE and sound signals is important to improve the accuracy of rockburst prediction. To investigate the evolutionary features of AE and sound signals, rockburst tests on granite rock specimens under true-triaxial loading conditions were performed using an improved rockburst testing system, and the AE and sounds during rockburst development were recorded and analyzed. The results show that the evolutionary features of the AE and sound signals were obvious and similar. On the eve of a rockburst, a 'quiescent period' could be observed in both the evolutionary process of the AE hits and the sound waveform. Furthermore, the time-dependent fractal dimensions of the AE hits and sound amplitude both showed a tendency to continuously decrease on the eve of the rockbursts. In addition, on the eve of the rockbursts, the main frequency of the AE and sound signals both showed decreasing trends, and the frequency spectrum distributions were both characterized by low amplitudes, wide frequency bands and multiple peak shapes. Thus, the evolutionary features of sound signals on the eve of rockbursts, as well as that of AE signals, can be used as beneficial information for rockburst prediction.
WOS研究方向	Engineering ; Geology
语种	英语
出版者	SPRINGER WIEN
WOS记录号	WOS:000426074300002
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4219]
专题	岩土力学所知识全产出_期刊论文岩土力学所知识全产出国家重点实验室知识产出_期刊论文
作者单位	1.Guangxi Univ, Sch Civil & Architecture Engn, Key Lab Disaster Prevent & Struct Safety, Minist Educ ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Jiang, Quan,Zhang, Jie,Su, Guoshao,et al. True-Triaxial Experimental Study of the Evolutionary Features of the Acoustic Emissions and Sounds of Rockburst Processes[J]. ROCK MECHANICS AND ROCK ENGINEERING,2018,51(2):375-389.
APA	Jiang, Quan,Zhang, Jie,Su, Guoshao,Shi, Yanjiong,Feng, Xiating,&Jiang, Jianqing.(2018).True-Triaxial Experimental Study of the Evolutionary Features of the Acoustic Emissions and Sounds of Rockburst Processes.ROCK MECHANICS AND ROCK ENGINEERING,51(2),375-389.
MLA	Jiang, Quan,et al."True-Triaxial Experimental Study of the Evolutionary Features of the Acoustic Emissions and Sounds of Rockburst Processes".ROCK MECHANICS AND ROCK ENGINEERING 51.2(2018):375-389.