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Liquid CO2 Phase-Transition Rock Fracturing: A Novel Technology for Safe Rock Excavation

文献类型：期刊论文

作者Sui, Haoyue1; Su, Tianming1; Hu, Ruilin2,3,4; Yang, Ke5; Cheng, Yaxing2,3,4
刊名APPLIED SCIENCES-BASEL
出版日期2022
卷号12期号:1页码:19
关键词liquid carbon dioxide phase-transition rock mass excavation fragmentation distribution HHT
DOI10.3390/app12010068
英文摘要In order to determine the applicability of liquid CO2 phase-transition fracturing technology in rock mass excavations, the principles of CO2 phase-transition fracturing were analyzed, and field tests of liquid CO2 phase-transition fracturing were performed. An "Unmanned Aerial Vehicle (UAV) camera shooting + Microstructure Image Processing System (MIPS) analyzing" method was used to acquire the rock mass characteristics. Further, the Hilbert-Huang Transform (HHT) energy analysis principle was adopted to analyze the characteristics of fracturing vibration waves. The experimental results showed that during the process of fracturing, there were both dynamic actions of rock breakage due to excitation stress wave impacts, and quasi-static actions of rock breakage caused by gasification expansion wedges. In semi-infinite spaces, rock-breakage zones can mainly be divided into crushing zones, fracture zones, and vibration zones. At the same time, under ideal fracturing effects and large volumes, the fracturing granularity will be in accordance with the fractal laws. For example, the larger the fractal dimensions, the higher the proportion of small fragments, and vice versa. Moreover, the vibration waves of the liquid CO2 phase-transition fracturing have short durations, fast attenuation, and fewer high-frequency components. The dominant frequency band of energy will range between 0 and 20 Hz. The liquid CO2 phase-transition fracturing technology has been observed to overcome the shortcomings of traditional explosive blasting methods and can be applied to a variety of rock types. It is a safe and efficient method for rock-breaking excavations; therefore, the above technology effectively provides a new method for the follow-up of similar engineering practices.
WOS关键词GAS ; MODEL
资助项目National Natural Science Foundation of China[41330643]
WOS研究方向Chemistry ; Engineering ; Materials Science ; Physics
语种英语
WOS记录号WOS:000751263800001
出版者MDPI
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 ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
源URL[http://ir.iggcas.ac.cn/handle/132A11/104039]  
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Su, Tianming
作者单位1.Highway Minist Transport, Res Inst, Key Lab Transport Ind Rd Struct & Mat, Beijing 100088, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Shale Gas & Geoengn, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
5.Hebei Bur Geol & Mineral Resources Explorat, Land & Resources Explorat Ctr, Shijiazhuang 050081, Hebei, Peoples R China
推荐引用方式
GB/T 7714		 Sui, Haoyue,Su, Tianming,Hu, Ruilin,et al. Liquid CO2 Phase-Transition Rock Fracturing: A Novel Technology for Safe Rock Excavation[J]. APPLIED SCIENCES-BASEL,2022,12(1):19.
APA Sui, Haoyue,Su, Tianming,Hu, Ruilin,Yang, Ke,&Cheng, Yaxing.(2022).Liquid CO2 Phase-Transition Rock Fracturing: A Novel Technology for Safe Rock Excavation.APPLIED SCIENCES-BASEL,12(1),19.
MLA Sui, Haoyue,et al."Liquid CO2 Phase-Transition Rock Fracturing: A Novel Technology for Safe Rock Excavation".APPLIED SCIENCES-BASEL 12.1(2022):19.

入库方式： OAI收割

来源：地质与地球物理研究所

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