Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy

doi:10.1016/j.ijrmms.2019.03.029

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	Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy
	Zhang, Yan ; Feng, Xia-Ting; Yang, Chengxiang ; Zhang, Xiwei ; Sharifzadeh, Mostafa ; Wang, Zhaofeng
	2019
发表期刊	INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES
ISSN	1365-1609
卷号	117 期号:-页码:150-161
摘要	The study of rock fracturing is a fundamental research topic in rock mechanics and engineering. In this paper, based on complete stress-strain curves obtained under TTC and the corresponding AE and strain energy results, the mechanical properties and fracturing process of Beishan granite are studied. A representative test result (sigma(2) = 75 MPa, sigma(3) = 20 MPa) is selected to analyse and illustrate the three-dimensional fracturing process of the Beishan granite. The results show that the variations in the characteristics of the brittle fracture behaviour, AE and strain energy of Beishan granite change with sigma(2) or sigma(3) following certain relationships, and the mechanisms driving these various relationships are very different. The AE and strain energy characteristics of Beishan granite are also quite different among the five fracturing evolution stages. The variations in the increments of AE count, AE event and total elastic strain energy per unit time (Delta S-c/Delta t, Delta S-e /Delta t and Delta U-e/Delta t) are studied at different times and under different stresses during rock failure. The rock fracturing evolution can be illustrated through the variation in these parameters, providing deep insight. This research provides a perspective for studying deep underground fracture-forming processes, such as earthquakes, tunnel sudden failure, spalling, splitting and rockburst.
关键词	Fracturing process Acoustic emission Strain energy Beishan granite True triaxial compression
DOI	10.1016/j.ijrmms.2019.03.029
收录类别	SCI
语种	英语
WOS研究方向	Engineering ; Mining & Mineral Processing
WOS类目	Engineering, Geological ; Mining & Mineral Processing
WOS记录号	WOS:000469934600013
引用统计	被引频次：78[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.198/handle/2S6PX9GI/14983
专题	岩土力学所知识全产出_期刊论文国家重点实验室知识产出_期刊论文
作者单位	1.Northeastern Univ, Minist Educ Safe Min Deep Met Mines, Key Lab, Shenyang 110819, Liaoning, Peoples R China; 2.Curtin Univ, Western Australian Sch Mines, Dept Min Engn, Kalgoorlie, Australia; 3.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Hubei, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Yan,Feng, Xia-Ting,Yang, Chengxiang,et al. Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy[J]. INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,2019,117(-):150-161.
APA	Zhang, Yan,Feng, Xia-Ting,Yang, Chengxiang,Zhang, Xiwei,Sharifzadeh, Mostafa,&Wang, Zhaofeng.(2019).Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy.INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES,117(-),150-161.
MLA	Zhang, Yan,et al."Fracturing evolution analysis of Beishan granite under true triaxial compression based on acoustic emission and strain energy".INTERNATIONAL JOURNAL OF ROCK MECHANICS AND MINING SCIENCES 117.-(2019):150-161.

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