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Characteristics of Infrared Radiation in the Failure of Phosphate Rock at Different Loading Rates

文献类型：期刊论文

作者Gao, Chengcheng3,4; Lin, Manqing3,4; Lu, Yongxiong2; Zhang, Dianji3,4; Feng, Guangliang1; Liang, Xiaoshuai3,4
刊名FRONTIERS IN EARTH SCIENCE
出版日期2022-01-28
卷号9页码:13
关键词phosphate rock loading rate failure process mechanical properties infrared radiation
DOI10.3389/feart.2021.812661
英文摘要Safe and effective mining of phosphate rock plays an important role in the sustainable development of phosphorus resources. The mechanical properties and failure process of phosphate rock under different mining rates remain unclear, further restricting the safe and efficient mining of phosphate rock. In this paper, infrared radiation and uniaxial compression tests of phosphate rock under different loading rates, e.g., 0.0005, 0.001, 0.005, and 0.01 mm/s, were conducted to investigate the failure process of phosphate rock. Energy evolution and infrared radiation characteristics of the phosphate rock damage process were analyzed using nondestructive, real-time, and noncontact infrared thermal imaging technology. The results show that the higher the loading rate of phosphate rock, the more obvious the high-temperature zone and high-temperature point of phosphate rock in the loading process. At failure, the friction and slippage between internal cracks are intense, showing that the infrared radiation temperature difference increases with the increase of loading rate. As loading rate increases, the energy release time of phosphate rock before damage is reduced, resulting in more energy stored in the rock as evinced by its infrared radiation characteristics, finally resulting in greater damage. The increase of loading rate reduces the dissipation energy of phosphate rock before failure so that more energy remains in the rock mass through the weak surface of the grain boundary. The results of this work will be helpful in enhancing theoretical support for prevention and control of dynamic disasters in phosphate mines.
资助项目National Natural Science Foundation of China[52174085] ; National Natural Science Foundation of China[42177168] ; Central Leading Local Science and Technology Development Project of Hubei Province[2017ZYYD007] ; Key Research and Development Program Project of Hubei Province[2020BCB078] ; Wuhan Institute of Technology Graduate Innovation Fund Project[CX2020367] ; Wuhan Institute of Technology Graduate Innovation Fund Project[CX2020372]
WOS研究方向Geology
语种英语
WOS记录号WOS:000760525900001
出版者FRONTIERS MEDIA SA
源URL[http://119.78.100.198/handle/2S6PX9GI/34547]  
专题中科院武汉岩土力学所
通讯作者Lin, Manqing; Feng, Guangliang
作者单位1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China
2.Wuhan Inst Technol, Sch Optoelect Informat & Energy Engn, Wuhan, Peoples R China
3.Wuhan Inst Technol, Minist Educ Phosphorus Resources Dev, Engn Res Ctr, Wuhan, Peoples R China
4.Wuhan Inst Technol, Sch Resource & Safety Engn, Wuhan, Peoples R China
推荐引用方式
GB/T 7714		 Gao, Chengcheng,Lin, Manqing,Lu, Yongxiong,et al. Characteristics of Infrared Radiation in the Failure of Phosphate Rock at Different Loading Rates[J]. FRONTIERS IN EARTH SCIENCE,2022,9:13.
APA Gao, Chengcheng,Lin, Manqing,Lu, Yongxiong,Zhang, Dianji,Feng, Guangliang,&Liang, Xiaoshuai.(2022).Characteristics of Infrared Radiation in the Failure of Phosphate Rock at Different Loading Rates.FRONTIERS IN EARTH SCIENCE,9,13.
MLA Gao, Chengcheng,et al."Characteristics of Infrared Radiation in the Failure of Phosphate Rock at Different Loading Rates".FRONTIERS IN EARTH SCIENCE 9(2022):13.

入库方式： OAI收割

来源：武汉岩土力学研究所

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