IGGCAS OpenIR  > 页岩气与地质工程院重点实验室
An Advanced Shear Strength Criterion for Rock Discontinuities Considering Size and Low Shear Rate
Zheng, Bowen1,2,3; Qi, Shengwen1,2,3; Huang, Xiaolin1,2,3; Guo, Songfeng1,2,3; Wang, Chonglang4; Zhan, Zhifa5; Luo, Guangming1,2,3
2020-06-01
Source PublicationAPPLIED SCIENCES-BASEL
Volume10Issue:12Pages:19
AbstractThe shear strength of the rock discontinuities under different shear rates is of great importance to evaluate the stability of rock mass engineering, which is remarkably influenced by the size effects induced by both the length and the undulated amplitude of discontinuities. An advanced shear strength criterion taking into account the size and the shear rate simultaneously was proposed. There is an advantage of the dimension unity in terms of the new shear strength criterion in comparison to previous related empirical equations. Additionally, it can be degraded into the International Society for Rock Mechanics (ISRM)-suggested Barton shear strength empirical equation on the peak shear strength of the rock discontinuities. Then, based on a new dynamic direct shear testing device on rock joints, the granite discontinuities with various lengths (200 mm to 1000 mm) and undulated amplitudes (3 mm to 23 mm) were designed to conduct direct shear tests under different low shear rates (0 mm/s to 1 mm/s) to verify the involved empirical equations. It was found that the results predicted by the new shear strength criterion agreed well with the experimental results. It was proved that the new shear strength criterion had a better applicability to characterize the shear strength of the rock discontinuities.
Keywordrock mass engineering geomechanics rock discontinuities shear loading strength assessment size and shear rate effects qualitative characterization
DOI10.3390/app10124095
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS KeywordJOINT ROUGHNESS COEFFICIENT ; MECHANICS ; FRICTION ; BEHAVIOR ; FAILURE ; DEGRADATION ; DEPENDENCY ; ANISOTROPY ; VELOCITY ; STRESS
Language英语
Funding ProjectNational Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[41672307] ; National Natural Science Foundation of China[41902289] ; National Natural Science Foundation of China[41702345] ; National Natural Science Foundation of China[41807273] ; China Postdoctoral Science Foundation[2017M620903]
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation
WOS Research AreaChemistry ; Engineering ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000549500200001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/97199
Collection页岩气与地质工程院重点实验室
Corresponding AuthorZheng, Bowen; Qi, Shengwen
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth Sci, Beijing 100049, Peoples R China
4.Univ Toronto, Dept Civil & Mineral Engn, Toronto, ON M5S 1A4, Canada
5.China Highway Engn Consulting Corp, Beijing 100089, Peoples R China
First Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationKey Laboratory of Shale Gas and Geoengineering, Institute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zheng, Bowen,Qi, Shengwen,Huang, Xiaolin,et al. An Advanced Shear Strength Criterion for Rock Discontinuities Considering Size and Low Shear Rate[J]. APPLIED SCIENCES-BASEL,2020,10(12):19.
APA Zheng, Bowen.,Qi, Shengwen.,Huang, Xiaolin.,Guo, Songfeng.,Wang, Chonglang.,...&Luo, Guangming.(2020).An Advanced Shear Strength Criterion for Rock Discontinuities Considering Size and Low Shear Rate.APPLIED SCIENCES-BASEL,10(12),19.
MLA Zheng, Bowen,et al."An Advanced Shear Strength Criterion for Rock Discontinuities Considering Size and Low Shear Rate".APPLIED SCIENCES-BASEL 10.12(2020):19.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zheng, Bowen]'s Articles
[Qi, Shengwen]'s Articles
[Huang, Xiaolin]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zheng, Bowen]'s Articles
[Qi, Shengwen]'s Articles
[Huang, Xiaolin]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zheng, Bowen]'s Articles
[Qi, Shengwen]'s Articles
[Huang, Xiaolin]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.