Evaluation of shear strength of rock joints subjected to cyclic loading

被引：190

作者：

Jafari, MK

Hosseini, KA

Pellet, F

Boulon, M

Buzzi, O

机构：

[1] Int Inst Earthquake Engn & Seismol, Tehran, Iran

[2] Univ Grenoble 1, Lab 3S, Grenoble, France

来源：

SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2003年 / 23卷 / 07期

关键词：

shear strength; roughness; cyclic loading; shearing velocity; number of cycles; stress amplitude;

D O I：

10.1016/S0267-7261(03)00063-0

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

Variation of the shear strength of rock joints due to cyclic loadings is studied in the present paper. Identical joint surfaces were prepared using a developed moulding method with special mortar and shear tests were performed on these samples under both static and cyclic loading conditions. Different levels of shear displacement were applied on the samples to study joint behaviour before and during considerable relative shear displacement. It was found that the shear strength of joints is related to rate of displacement (shearing velocity), number of loading cycles and stress amplitude. Finally, based on the experimental results, mathematical models were developed for evaluation of shear strength in cyclic loading conditions. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：619 / 630

页数：12

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