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  4. 中国科学院页岩气与地质工程重点实验室
Crack Propagation Process and Seismogenic Mechanisms of Rock Due to the Influence of Freezing and Thawing

文献类型：期刊论文

作者Si, Kai1,4; Cui, Zhendong2,4; Peng, Ruidong3; Zhao, Leilei1; Zhao, Yan1
刊名APPLIED SCIENCES-BASEL
出版日期2021-10-01
卷号11期号:20页码:17
关键词freeze-thaw damage fracture process acoustic emission signal processing AE moment tensor
DOI10.3390/app11209601
英文摘要A common problem in cold regions is the influence of freeze-thaw damage on the stability of rock engineering. Therefore, a series of uniaxial compression tests of sandstone after freeze-thaw treatment was carried out in this study. The purpose was to express the initial damage of rock after freezing and thawing treatment more quantitatively and to study the influence of freeze-thaw damage on the rock crack growth process to provide some reference for the stability evaluation of rock engineering in cold regions. The results showed that the number of freeze-thaw cycles and the lowest freeze-thaw temperature had a significant effect on the rock damage and characteristic stress value, and the number of cycles had a more obvious effect: with an increase in the number of freeze-thaw cycles and a decrease in the freeze-thaw temperature, the initial damage D-NT had an increasing trend. In addition, the intrinsic mechanism of the freeze-thaw effect on the rock characteristic stress was explained from the perspective of a meso-mechanical mechanism. From the inversion results of the acoustic emission (AE) moment tensor, it was found that the proportion of tensile cracks gradually increased with the increase in the initial damage of the rock in the stable and unsteady stages of the rock crack propagation.

WOS关键词ACOUSTIC-EMISSION ; COMPRESSIVE STRENGTH ; CONSTITUTIVE MODEL ; PREDICTION MODEL ; DAMAGE MECHANICS ; BRITTLE SOLIDS ; PORE STRUCTURE ; DETERIORATION ; FRACTURE ; FAILURE
资助项目Second Tibetan Plateau Scientific Expedition and Research Program (STEP)[2019QZKK0904] ; National Natural Science Foundation of China[51727807] ; Fundamental Research Funds for the Central Universities[2020YJSMT06]
WOS研究方向Chemistry ; Engineering ; Materials Science ; Physics
语种英语
出版者MDPI
WOS记录号WOS:000714470600001
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) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 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) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 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) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; 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) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities
源URL[http://ir.iggcas.ac.cn/handle/132A11/103806]  
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Cui, Zhendong
作者单位1.China Univ Min & Technol Beijing, Sch Mech & Civil Engn, Beijing 100083, Peoples R China
2.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
3.China Univ Min & Technol Beijing, State Key Lab Coal Resources & Safe Min, Beijing 100083, Peoples R China
4.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		 Si, Kai,Cui, Zhendong,Peng, Ruidong,et al. Crack Propagation Process and Seismogenic Mechanisms of Rock Due to the Influence of Freezing and Thawing[J]. APPLIED SCIENCES-BASEL,2021,11(20):17.
APA Si, Kai,Cui, Zhendong,Peng, Ruidong,Zhao, Leilei,&Zhao, Yan.(2021).Crack Propagation Process and Seismogenic Mechanisms of Rock Due to the Influence of Freezing and Thawing.APPLIED SCIENCES-BASEL,11(20),17.
MLA Si, Kai,et al."Crack Propagation Process and Seismogenic Mechanisms of Rock Due to the Influence of Freezing and Thawing".APPLIED SCIENCES-BASEL 11.20(2021):17.

入库方式： OAI收割

来源：地质与地球物理研究所

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