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2022 Vol.32, Issue 1 Preview Page

Research Article

Improvement of Fluid Transfer Using Pneumatic Fracturing, Plasma Blasting, and Vacuum Suction
Geun-Chun Lee12
,
Jae-Yong Song3
,
Cha-Won Kang1
,
Hyun-Shic Jang4
,
Bo-An Jang5
,
Yu-Chul Park6*
1Managing Director, SanHa Engineering & Construction Co., Ltd.
2Ph.D. Student, Department of Geophysics, Kangwon National University
3Director, SanHa Engineering & Construction Co., Ltd.
4Research Professor, Research Institute for Earth Resources, Kangwon National University
5Professor, Department of Geophysics, Kangwon National University
6Associate Professor, Department of Geophysics, Kangwon National University
*Corresponding Author
31 March 2022. pp. 127-142
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Abstract

This study explored the fluid transfer characteristics of simultaneous pneumatic blasting, plasma blasting, and vacuum suction (the PPV method), and assessed their effect. Chemical oxidation—an established soil remediation method—was compared as a control. Electrical resistivity surveys found that PPV reduced resistivity by about 1.5-2.5 times compared with the control group, indicating that it increased the diffusion of fluid between the injection and suction wells. Injection and suction tests comparing the injection flow rate, initial suction flow rate time, and suction flow rate showed that the PPV method offered an improvement over the existing method. Slug tests revealed that PPV increased the permeability coefficient by a greater amount than that by the control method. This study qualitatively and quantitatively confirmed that the PPV method clearly improves injection and suction efficiency by accelerating cracks in the ground and improving water permeability compared with the established chemical oxidation method.

Keywords
plasma blasting
pneumatic fracturing
vacuum suction
PPV method
in-situ
References
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Information
  • Publisher :Korean Society of Engineering Geology
  • Publisher(Ko) :대한지질공학회
  • Journal Title :The Journal of Engineering Geology
  • Journal Title(Ko) :지질공학
  • Volume : 32
  • No :1
  • Pages :127-142
  • Received Date : 2022-01-18
  • Revised Date : 2022-03-28
  • Accepted Date : 2022-03-28
  • DOI :https://doi.org/10.9720/kseg.2022.1.127
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