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Liquid CO2 Phase-Transition Rock Fracturing: A Novel Technology for Safe Rock Excavation
Sui, Haoyue1; Su, Tianming1; Hu, Ruilin2,3,4; Yang, Ke5; Cheng, Yaxing2,3,4
2022
Source PublicationAPPLIED SCIENCES-BASEL
Volume12Issue:1Pages:19
AbstractIn 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.
Keywordliquid carbon dioxide phase-transition rock mass excavation fragmentation distribution HHT
DOI10.3390/app12010068
Funding OrganizationNational 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
WOS KeywordGAS ; MODEL
Language英语
Funding ProjectNational Natural Science Foundation of China[41330643]
Funding OrganizationNational 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
WOS Research AreaChemistry ; Engineering ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Engineering, Multidisciplinary ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000751263800001
PublisherMDPI
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/104039
Collection页岩气与地质工程院重点实验室
Corresponding AuthorSu, Tianming
Affiliation1.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
Recommended Citation
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.
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