Experimental study of shear deformation characteristics of rock mass discontinuities

被引：0
|
作者：
Shen, Mingrong [1 ,2 ]
Zhang, Qingzhao [2 ]
机构：
[1] Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China
[2] Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
来源：
Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering | 2010年 / 29卷 / 04期
关键词：
Shear deformation - Rocks - Shearing - Shearing machines - Shear stress - Elasticity;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A series of shear tests under different normal stresses are carried out on regular dentate rock mass discontinuities. The mechanical properties of regular dentate rock mass discontinuity under shearing and the main law of its strength and deformation are discussed. Through analyzing the test data, it carries on further investigation on shear deformation curves of the discontinuities under shear stress and shear deformation characteristics of the discontinuities with different roughnesses. Then the constitutive relation of shear deformation characteristics is put forward. Meanwhile, the changes of integrated shear strength parameters of the discontinuities under the shearing condition are researched; and an empirical formula for evaluating the shear strength is set up. The dilatancy characteristics of the discontinuities under shearing are analyzed; and an interpretation of the phenomenon is provided.
引用
收藏
页码：713 / 719
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