Characteristics of Vibration Velocity Signal Using Liquid Carbon Dioxide Rock-Breaking Technology
Source abstract
Abstract
Liquid carbon dioxide rock-breaking (L-CDRB) is a new physical blasting technology. To study the characteristics of its vibration velocity, rock-breaking field tests were conducted using a new type of liquid CO2 fracturing tube. Comparisons were made between explosive blasting and L-CDRB in terms of the peak values, frequencies, and energy distributions of the generated vibration velocities. The results show that (1) for the same scaled charge, L-CDRB (vs. explosive blasting) produced a smaller peak, a lower dominant frequency, and simpler frequency components of vibration velocities than explosive blasting. (2) The dominant frequency and energy distribution were related to the total liquid CO2 filling quantity. Higher total filling quantities resulted in higher dominant frequencies, and the energy distribution shifted from a low to a high-frequency band.
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Research context
OpenAlex topics: Rock Mechanics and Modeling · Landslides and related hazards · Grouting, Rheology, and Soil Mechanics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
University of Chinese Academy of Sciences, Beijing 100049, China
Funding
National Key Research and Development Program of China
References (29)
Show source-provided references
1. A state-of-the-art review of mechanical characteristics and cracking processes of pre-cracked rocks under quasi-static compression10.1016/j.jrmge.2022.03.013 ↗
2. (2014). Safety Regulations for Blasting (Standard No. GB 6722-2014).
3. Simulating Hydraulic Fracture Re-orientation in Heterogeneous Rocks with an Improved Discrete Element Method10.1007/s00603-021-02422-1 ↗
4. Characterization of CO2 snow generation to increase the blasting performance10.4028/www.scientific.net/AMM.794.255 ↗
5. Nonexplosive applications of the PCF concept for underground excavation10.1016/S0886-7798(98)00062-5 ↗
6. Cardox system brings benefits in the mining of large coal
7. Liquid carbon dioxide blasting tube and field test
8. Development of high pressure gas blasting mining technology and its application in China
9. Model test study on coal breaking mechanism of high pressure gas blasting
10. Research on increasing coal seam permeability and promoting gas drainage with liquid CO2 blasting
11. Chengxu, X. (2018). Experimental Study of Phase-Transforming Fracturing of Liquid Carbon Dioxide, Hubei University of Technology.
12. Acoustic emission monitoring of hydraulic fracturing laboratory experiment with supercritical and liquid CO210.1029/2012GL052788 ↗
13. Study on carbon dioxide thermodynamic behavior for the purpose of shale rock fracturing
14. Yabei, H. (2014). Mechanism Research on Increase Coal Gas Permeability by Liquid CO2 Phase Transition Fracturing Technique, Henan Polytechnic University.
15. Kaikai, S. (2019). Mechanism of Action and the Optimization of Construction Parameters of Opencast Mining of Rock with Carbon Dioxide Fracture, Shandong University of Science and Technology.
16. Comparison analysis of ground vibrations induced by CO2 gas fracturing and explosive blasting
17. Brittle fracture of rocks under impulse loads10.1007/BF00212655 ↗
18. The compressive strength of tuff as a function of strain rate from 10^ to 10^3/sec10.1016/0148-9062(91)93241-W ↗
19. A Review of Dynamic Experimental Techniques and Mechanical Behaviour of Rock Materials10.1007/s00603-013-0463-y ↗
20. Mechanism Analysis of Liquid Carbon Dioxide Phase Transition for Fracturing Rock Masses10.3390/en11112909 ↗
21. Peridynamics simulation of rock fracturing under liquid carbon dioxide blasting10.1177/1056789518807532 ↗
22. Performance research and application of carbon dioxide expansion blasting one-time cracking pipe
23. An experimental study of a novel liquid carbon dioxide rock-breaking technology10.1016/j.ijrmms.2020.104244 ↗
24. Zhiliang, L. (2010). Experiment Course on Rock Mechanics, Chemical Industry Press.
25. Research on TNT equivalent of liquid CO2 phase-transition fracturing
26. Chaogui, M. (2020). Study on the Influencing Factors and Parameter Optimization of Coal Body Caused by Carbon Dioxide Phase Change Blasting, China University of Mining and Technology.
27. Mingyu, W. (2018). Study on Crack Propagation Law of Liquid Carbon Dioxide Phase Transition Blasting and Its Application, China University of Mining and Technology.
28. Scale model test study of influence of joints on blasting vibration attenuation10.1007/s10064-020-01944-2 ↗
29. Study on the attenuation parameters of blasting vibration velocity in jointed rock masses10.1007/s10064-018-01452-4 ↗