A thin-layer interface model for wave propagation through filled rock joints

被引：74

作者：

Li, J. C. ^{[1
]}

Wu, W. ^{[2
]}

Li, H. B. ^{[1
]}

Zhu, J. B. ^{[3
,4
]}

Zhao, J. ^{[2
]}

机构：

[1] Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China

[2] Ecole Polytech Fed Lausanne, Lab Rock Mech, CH-1015 Lausanne, Switzerland

[3] CALTECH, Div Engn & Appl Sci, Pasadena, CA 91125 USA

[4] CALTECH, Div Engn & Appl Sci, Dept Mech & Civil Engn, Pasadena, CA 91125 USA

来源：

JOURNAL OF APPLIED GEOPHYSICS | 2013年 / 91卷

基金：

瑞士国家科学基金会;

关键词：

Wave propagation; Filled rock joint; Thin-layer interface model; Displacement discontinuity method; Stress-closure relation; DEFORMATIONAL BEHAVIOR; TRANSMISSION; FRACTURES; BOUNDARY; ELEMENT; SINGLE;

D O I：

10.1016/j.jappgeo.2013.02.003

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The present study essentially employs a thin-layer interface model for filled rock joints to analyze wave propagation across the jointed rock masses. The thin-layer interface model treats the rough-surfaced joint and the filling material as a continuum medium with a finite thickness. The filling medium is sandwiched between the adjacent rock materials. By back analysis, the relation between the normal stress and the closure of the filled joint are derived, where the effect of joint deformation process on the wave propagation through the joint is analyzed. Analytical solutions and laboratory tests are compared to evaluate the validity of the thin-layer interface model for filled rock joints with linear and nonlinear mechanical properties. The advantages and the disadvantages of the present approach are also discussed. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：31 / 38

页数：8

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