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A New Shear Strength Criterion for Rock Masses with Non-Persistent Discontinuities Considering the Nonlinear Progressive Failure Process

文献类型：期刊论文

作者Zheng, Bowen1,2,3; Qi, Shengwen1,2,3; Guo, Songfeng1,2,3; Huang, Xiaolin1,2,3; Liang, Ning1,2,3; Zou, Yu1,2,3; Luo, Guangming1,2,3
刊名MATERIALS
出版日期2020-11-01
卷号13期号:21页码:16
关键词non-persistent discontinuities connectivity rate direct shear test progressive failure strength
DOI10.3390/ma13214694
英文摘要The shear strength characteristics of rock masses containing non-persistent discontinuities are strongly affected by discontinuities and rock bridges. The linear Jennings criterion cannot reflect the nonlinear mechanical behavior during progressive failure of rock masses with non-persistent discontinuities. In this study, a new nonlinear shear strength criterion was developed. First of all, a series of shear test data about artificial rock mass samples were collected on the basis of the published literatures, and five types of samples were differentiated according to the positions of discontinuities. After that, a new nonlinear shear strength criterion was proposed by introducing two correction coefficients A and B into the basic form of the Jennings criterion, which could correct the weight of the cohesion and the internal friction coefficient of rock bridges respectively. Then, the new criterion was determined by fitting the basic form of the Jennings criterion with the laboratory data. It was found that the parameters A and B had a nonlinear exponential and negative exponential relation with the connectivity rate respectively. It indicated that both the cohesion and the internal friction coefficient estimated by the new criterion were superior to those estimated by the Jennings criterion. Compared with the linear Jennings criterion, the new nonlinear shear strength criterion had a better applicability.
WOS关键词BRITTLE FAILURE ; EARTHQUAKES ; BEHAVIOR ; JOINTS ; MODEL
资助项目Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; Key Deployment Program of the Chinese Academy of Sciences[KFZD-SW-422] ; National Natural Science Foundation of China[41825018] ; National Natural Science Foundation of China[41941018] ; 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]
WOS研究方向Materials Science
语种英语
WOS记录号WOS:000589362600001
出版者MDPI
资助机构Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; 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 ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; 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 ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; 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 ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Second Tibetan Plateau Scientific Expedition and Research Program (STEP) ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; Key Deployment Program of the Chinese Academy of Sciences ; 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
源URL[http://ir.iggcas.ac.cn/handle/132A11/98742]  
专题地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
通讯作者Qi, Shengwen
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Innovat Acad Earth Sci, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zheng, Bowen,Qi, Shengwen,Guo, Songfeng,et al. A New Shear Strength Criterion for Rock Masses with Non-Persistent Discontinuities Considering the Nonlinear Progressive Failure Process[J]. MATERIALS,2020,13(21):16.
APA Zheng, Bowen.,Qi, Shengwen.,Guo, Songfeng.,Huang, Xiaolin.,Liang, Ning.,...&Luo, Guangming.(2020).A New Shear Strength Criterion for Rock Masses with Non-Persistent Discontinuities Considering the Nonlinear Progressive Failure Process.MATERIALS,13(21),16.
MLA Zheng, Bowen,et al."A New Shear Strength Criterion for Rock Masses with Non-Persistent Discontinuities Considering the Nonlinear Progressive Failure Process".MATERIALS 13.21(2020):16.

入库方式： OAI收割

来源：地质与地球物理研究所

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