Fracture Propagation Characteristic and Micromechanism of Rock-Like Specimens under Uniaxial and Biaxial Compression

doi:10.1155/2016/6018291

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

	Fracture Propagation Characteristic and Micromechanism of Rock-Like Specimens under Uniaxial and Biaxial Compression
	Wei, Lai 1; Liu, Xue-wei 1; Liu, Quan-sheng 1,2; Huang, Shi-bing 1; Lei, Guang-feng 1
刊名	SHOCK AND VIBRATION
	2016
页码	-
ISSN号	1070-9622
DOI	10.1155/2016/6018291
英文摘要	This paper presents a set of uniaxial and biaxial compression tests on the rock-like material specimens with different fracture geometries through a rock mechanics servo-controlled testing system (RMT-150C). On the basis of experimental results, the characteristics of fracture propagation under different fracture geometries and loading conditions are firstly obtained. The newly formed fractures are observed propagating from or near the preexisting crack tips for different specimens, while the propagation paths are affected by the loading condition obviously. Then, by adopting acoustic emission (AE) location technique, AE event localization characteristics in the process of loading are investigated. The locations of AE events are in good agreement with the macroscopic fracture propagation path. Finally, the micromechanism of macroscopic fracture propagation under uniaxial and biaxial compression conditions is analyzed, and the fracture propagation can be concluded as a result of microdamage accumulation inside the material. The results of this paper are helpful for theory and engineering design of the fractured rock mass.
WOS研究方向	Acoustics ; Engineering ; Mechanics
语种	英语
出版者	HINDAWI PUBLISHING CORP
WOS记录号	WOS:000372985600001
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/3810]
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.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Wuhan Univ, Sch Civil Engn, Key Lab Safety Geotech & Struct Engn Hubei Prov
推荐引用方式 GB/T 7714	Wei, Lai,Liu, Xue-wei,Liu, Quan-sheng,et al. Fracture Propagation Characteristic and Micromechanism of Rock-Like Specimens under Uniaxial and Biaxial Compression[J]. SHOCK AND VIBRATION,2016:-.
APA	Wei, Lai,Liu, Xue-wei,Liu, Quan-sheng,Huang, Shi-bing,&Lei, Guang-feng.(2016).Fracture Propagation Characteristic and Micromechanism of Rock-Like Specimens under Uniaxial and Biaxial Compression.SHOCK AND VIBRATION,-.
MLA	Wei, Lai,et al."Fracture Propagation Characteristic and Micromechanism of Rock-Like Specimens under Uniaxial and Biaxial Compression".SHOCK AND VIBRATION (2016):-.