Recent studies on time-dependent behavior of rock strength and the effects of confining pressure

被引：0

作者：

Fu J. ^{[1
,2
,3
]}

Song W. ^{[1
,2
]}

Hashiba K. ^{[3
]}

机构：

[1] Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing

[2] Key Laboratory of High-Efficient Mining and Safety of Metal Mines, Ministry of Education, University of Science and Technology Beijing, Beijing

[3] Systems Innovation, School of Engineering, The University of Tokyo, Tokyo

来源：

Yanshilixue Yu Gongcheng Xuebao/Chinese Journal of Rock Mechanics and Engineering | 2016年 / 35卷

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Confining pressure; Creep; Loading rate dependency; Rock mechanics; Time-dependent behavior;

D O I：

10.13722/j.cnki.jrme.2015.1534

中图分类号：

学科分类号：

摘要：

To estimate long-term stability of deep underground structures, it is important to investigate the time-dependent behavior of rock. Loading rate dependency, creep and relaxation have been well examined under uniaxial stress state conditions, however, less in known of the effects of confining pressure. In this paper, recent experimental and theoretical studies on the time-dependency of rock were reviewed primarily focusing on the effects of confining pressure. Firstly, time-dependent behavior under confining pressure was compared to the uniaxial stress state, and the effects of confining pressure were discussed. Loading rate dependency, creep and the relation between them were examined with the aid of recent theoretical studies. The close relations among time-dependency, probability distribution of rock properties and scale effect were explained theoretically. Finally, equipment and practical testing methods used to investigate the time-dependent behavior under confining pressure were reviewed. © 2016, Science Press. All right reserved.

引用

页码：3653 / 3661

页数：8

共 46 条

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