Numerical study on S-wave transmission across a rough, filled discontinuity

doi:10.1007/s12517-017-3030-0

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	Numerical study on S-wave transmission across a rough, filled discontinuity
	Luo, Yi 1; Liu, Tingting 1,2; Li, Xinpin 1; Li, Jianchun 2; Li, Haibo2 ; Zheng, Yun 2
刊名	ARABIAN JOURNAL OF GEOSCIENCES
	2017
卷号	10 期号:11 页码:-
关键词	UDEC Filled joint Wave transmission Asperity angle Shear wave
ISSN号	1866-7511
DOI	10.1007/s12517-017-3030-0
英文摘要	This paper presents a numerical simulation of S-wave propagation across a rough, filled discontinuity using the universal distinct element code (UDEC). The ability of UDEC to simulate a stress wave across a smooth and planar discontinuity filled with an elastic material is validated through comparisons with analytical solutions. Next, the effect of the plastic deformation of the fill on the wave propagation is investigated. The model is extended to further study S-wave propagation across a filled discontinuity with rough interfaces, which is described using a sawtooth. The transmission coefficient defined by the energy is used to measure the wave attenuation. Finally, a parametric study is conducted to investigate the influences of the filled thickness, asperity angle, and incident amplitude on the transmission waves and transmission coefficients. The asperity angle and filled thickness together determine the transmitted waveform and transmission coefficient. The transmitted wave may be cut off when the incident wave amplitude exceeds a threshold value. The transmission coefficient decreases with a different trend with the incident wave amplitude increasing when the asperity angle varies. Compared with planar discontinuity, a filled discontinuity with rough interfaces is more sensitive to the amplitude of the incident wave. The causes of these phenomena are analyzed in detail. In addition, the deformation of the fill material is strongly related to the wave attenuation.
WOS研究方向	Geology
语种	英语
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000403720000018
内容类型	期刊论文
源URL	[http://119.78.100.198/handle/2S6PX9GI/4076]
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.Wuhan Univ Technol, Key Lab Roadway Bridge & Struct Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn
推荐引用方式 GB/T 7714	Luo, Yi,Liu, Tingting,Li, Xinpin,et al. Numerical study on S-wave transmission across a rough, filled discontinuity[J]. ARABIAN JOURNAL OF GEOSCIENCES,2017,10(11):-.
APA	Luo, Yi,Liu, Tingting,Li, Xinpin,Li, Jianchun,Li, Haibo,&Zheng, Yun.(2017).Numerical study on S-wave transmission across a rough, filled discontinuity.ARABIAN JOURNAL OF GEOSCIENCES,10(11),-.
MLA	Luo, Yi,et al."Numerical study on S-wave transmission across a rough, filled discontinuity".ARABIAN JOURNAL OF GEOSCIENCES 10.11(2017):-.