An SHPB test study on wave propagation across rock masses with different contact area ratios of joint

doi:10.1016/j.ijimpeng.2016.12.011

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

	An SHPB test study on wave propagation across rock masses with different contact area ratios of joint
	Zhao, J.3; Li, J. C.1; Li, N. N.2; Li, H. B.2
刊名	INTERNATIONAL JOURNAL OF IMPACT ENGINEERING
	2017
卷号	105 页码:109-116
关键词	SHPB test Wave propagation Jointed rock mass Joint matching coefficient Dynamic behavior of rock joint
ISSN号	0734-743X
DOI	10.1016/j.ijimpeng.2016.12.011
英文摘要	The Split Hopkinson Pressure Bar (SHPB) apparatus was adopted to investigate the influence of joint contact area and spatial geometry of joint surface on the dynamic property of rock joint and wave propagation. The specimen was comprised of two rock cylinders. The top surfaces of the two cylinders contacted with each other, and their bottom surfaces contacted with the input and output bars of the SHPB apparatus, respectively. One top surface of one cylinder was sawn to shape a number of notches, while the other surfaces of the two cylinders were smooth and flat. The artificial rock joint was modeled as the contacted top surfaces of the two cylinders. The area ratio of contact between joint surfaces equals to the joint matching coefficient (JMC). The incident, transmitted and reflected waves were recorded from the strain gauges mounted on the input and output bars. Then, the transmission and reflection coefficients for strain wave propagation across the rock specimen were obtained. Based on the basic theory of SHPB tests, the stress on the specimen, the deformation of rock specimen and the stress-closure relation of joint were analyzed. The experimental results show that the JMC and the spatial geometry of joint surface affect not only the dynamic behavior of joint but also the stress wave propagation. (C) 2016 Elsevier Ltd. All rights reserved
WOS研究方向	Engineering ; Mechanics
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000401384900012
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4084]
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.Southeast Univ, Sch Civil Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 3.Monash Univ, Dept Civil Engn
推荐引用方式 GB/T 7714	Zhao, J.,Li, J. C.,Li, N. N.,et al. An SHPB test study on wave propagation across rock masses with different contact area ratios of joint[J]. INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,2017,105:109-116.
APA	Zhao, J.,Li, J. C.,Li, N. N.,&Li, H. B..(2017).An SHPB test study on wave propagation across rock masses with different contact area ratios of joint.INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,105,109-116.
MLA	Zhao, J.,et al."An SHPB test study on wave propagation across rock masses with different contact area ratios of joint".INTERNATIONAL JOURNAL OF IMPACT ENGINEERING 105(2017):109-116.