Analytical methods for wave propagation across jointed rock masses

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	Analytical methods for wave propagation across jointed rock masses
	Li, J. C.1; Li, H. B.1; Zhao, X. B.2
	2013
会议日期	JUN 06-08, 2013
会议地点	Ecole Polytechnique Fed Lausanne, Lausanne, SWITZERLAND
页码	111-123
英文摘要	Studying wave propagation across jointed rock masses is an important topic which has received considerable attention in rock mechanics due to problems in geophysics, mining and underground constructions. Because of the discontinuity by the joints, the dynamic response of a jointed rock mass is a complicated process. The paper will be concerned with the current analytical methods and the application for wave propagation across a jointed rock mass. The methods for analyzing the effect of joints on wave propagation across rock masses can be divided into two categories. One is to treat the rock mass as a discrete entity and the other is to solve the problem in a continuous medium. For the first category, some representative methods include the displacement discontinuity method and the stress and displacement discontinuity method. For the second category, there are effective moduli methods and an equivalent viscoelastic medium model. These methods have been adopted in time domain or in frequent domain to solve the wave propagation across a single or a set of parallel jointed rock mass. They have different applications and advantages. In the above methods, the thickness of rock joints is usually omitted so as to simplify the problem. Hence, the third part of the paper is mainly to investigate if the thickness of a rock joint has any influence on wave propagation. In this part, the joint is also considered as a continuous medium, and both the stress and displacement at the interface between the joint and adjacent rocks are assumed to be continuous. Comparison is then carried out in the third part between the analytical study and the modified SHPB test results.
源文献作者	Zhao, J ; Li, J
会议录	ROCK DYNAMICS AND APPLICATIONS - STATE OF THE ART
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	Geochemistry & Geophysics ; Engineering ; Agriculture
WOS记录号	WOS:000342691300009
内容类型	会议论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4776]
专题	岩土力学所知识全产出_会议论文国家重点实验室知识产出_会议论文
作者单位	1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn ; 2.Nanjing Univ, Sch Earth Sci & Engn
推荐引用方式 GB/T 7714	Li, J. C.,Li, H. B.,Zhao, X. B.. Analytical methods for wave propagation across jointed rock masses[C]. 见:. Ecole Polytechnique Fed Lausanne, Lausanne, SWITZERLAND. JUN 06-08, 2013.