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  2. 地质与地球物理研究所
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  4. 中国科学院页岩气与地质工程重点实验室
Study on the Damage Mechanism of Sandstone under Different Water Content States

文献类型：期刊论文

作者Wang, Hongjian2; Cui, Zhendong1,3; Xu, Chong4; Yong, Rui5; Zhao, Fei2; Chen, Shangyuan6
刊名REMOTE SENSING
出版日期2023-06-01
卷号15期号:12页码:29
关键词sandstone water content acoustic emission cracking properties fractal dimension precursory information
DOI10.3390/rs15123127
英文摘要Understanding the failure mechanisms of rocks that are exposed to different water contents is important for rock stability in rock engineering applications, and the quantitative analysis of rock behavior is necessary for predicting and preventing the occurrence of rock failure due to water effects. Mechanical tests using real-time acoustic emission (AE) technology were carried out to reveal the damage evolution in sandstone rocks in a dried state, natural state, and saturated state, which includes a quantitative analysis of AE characteristics and cracking properties. The testing results indicate that with the growth of water content, sandstone rocks show a decreasing trend in strength and tend to experience gentle damage with relatively fewer fractures. The crack morphology of the main fracture surfaces is quantitatively described, including a fractal dimension calculation and cracking length measurements. As the water content rises, when rock failure occurs, a higher AE b-value can be obtained, revealing an increasing proportion of large-scale cracks. The fractal dimension of the acoustic emission hit rate shows that the evolution of rock damage and deformation has self-similarity, that is, the transformation from order to disorder to order, and it is affected by different water contents. The AE waveforms of the sandstone have two dominant frequency bands (0 similar to 75 kHz and 75 similar to 150 kHz) no matter which water-bearing state they are in. The increase in rock water content has resulted in the decline of AE waveforms located in the range of 200-300 kHz, whereas the rise of AE waveforms is located in the range of 0-50 kHz. The findings of this study deepen our understanding of the mechanism behind rock failure and provide a meaningful reference for disaster assessment and control.
WOS关键词ACOUSTIC-EMISSION ; HARD-ROCK ; SPATIAL-DISTRIBUTION ; FRACTURE-TOUGHNESS ; FAILURE MECHANISMS ; SUGGESTED METHOD ; COMPRESSION ; STRENGTH ; BEHAVIOR ; CRACKING
资助项目National Natural Science Foundation of China[41972296] ; National Natural Science Foundation of China[41807254] ; National Natural Science Foundation of China[42177117] ; China Postdoctoral Science Foundation[2020M682372] ; Young Talent Support Project of Henan Province[2021HYTP013] ; Key Research and Development and promotion projects of Henan Province[212102310374] ; Key Research and Development and promotion projects of Henan Province[222102320265]
WOS研究方向Environmental Sciences & Ecology ; Geology ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
出版者MDPI
WOS记录号WOS:001016018400001
资助机构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 ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; 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 ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; 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 ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; 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 ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Young Talent Support Project of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province ; Key Research and Development and promotion projects of Henan Province
源URL[http://ir.iggcas.ac.cn/handle/132A11/111291]  
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.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
2.North China Univ Water Resources & Elect Power, Coll Geosci & Engn, Zhengzhou 450045, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
4.Natl Inst Nat Hazards, Minist Emergency Management China, Beijing 100085, Peoples R China
5.Ningbo Univ, Sch Civil & Environm Engn, Ningbo 315211, Peoples R China
6.Anyang Inst Technol, Sch Civil & Architectural Engn, Anyang 455000, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Hongjian,Cui, Zhendong,Xu, Chong,et al. Study on the Damage Mechanism of Sandstone under Different Water Content States[J]. REMOTE SENSING,2023,15(12):29.
APA Wang, Hongjian,Cui, Zhendong,Xu, Chong,Yong, Rui,Zhao, Fei,&Chen, Shangyuan.(2023).Study on the Damage Mechanism of Sandstone under Different Water Content States.REMOTE SENSING,15(12),29.
MLA Wang, Hongjian,et al."Study on the Damage Mechanism of Sandstone under Different Water Content States".REMOTE SENSING 15.12(2023):29.

入库方式： OAI收割

来源：地质与地球物理研究所

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