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6CCVD Research

Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw

At a Glance

Section titled ā€œAt a Glanceā€
MetadataDetails
Publication Date2021-01-01
JournalAdvances in Civil Engineering
AuthorsZhu Tang, Shuqing Li, Fei Huang, Shouqing Huang, Cai Kang-xu
InstitutionsHunan University of Science and Technology, Liupanshui Normal University
Citations1

Abstract

Section titled ā€œAbstractā€

To safely and economically eliminate the threat of high geostress in the coal mining process, based on the engineering case study of pressure relief by slotting residual coal pillars at a mine in the Kailuan mining area, a method of pressure relief by slotting coal seams with a wire saw was explored, and numerical simulation was carried out. The results show that the wire saw can cut coal seams in a large area, with a cutting efficiency and slotting depth greater than those of hydraulic slotting; a stress concentration zone forms in front of the wire saw coal cutting working face and a stress reduction zone and a stress recovery zone form behind. The pressure relief range varies, increasing at first and then decreasing. The exploration and practice of pressure relief by slotting coal seams with a diamond wire provides theoretical guidance and practical reference for pressure relief by slotting coal seams.

Tech Support

Section titled ā€œTech Supportā€

Original Source

Section titled ā€œOriginal Sourceā€

References

Section titled ā€œReferencesā€
  1. 1991 - Mine Pressure and its Control
  2. 2001 - Theory and Technology of Rock Burst Prevention
  3. 2010 - Multi-field Coupling of Porous Media and its Engineering Response
  4. 2010 - A numeric analysis of the effects different factors have on slotted drilling
  5. 2011 - Regional gas control based on drilling-slotting-extracting integration technology
  6. 2014 - Breakage mechanism of transverse isotropic rock subjected to high-pressure water JET
  7. 2019 - Theoretical model of annular slotting depth for high pressure water jet and its application
  8. 2011 - Study on sawing forces of diamond wire saw in concrete cutting

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