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

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...

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Main Authors: Zhu Tang, Shuqing Li, Fei Huang, Shouqing Huang, Kangxu Cai
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Advances in Civil Engineering
Online Access:http://dx.doi.org/10.1155/2021/9961326
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author Zhu Tang
Shuqing Li
Fei Huang
Shouqing Huang
Kangxu Cai
author_facet Zhu Tang
Shuqing Li
Fei Huang
Shouqing Huang
Kangxu Cai
author_sort Zhu Tang
collection DOAJ
description 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.
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institution Kabale University
issn 1687-8086
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language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Advances in Civil Engineering
spelling doaj-art-a9e6d2f4df814c3eaf201458605a756d2025-02-03T01:29:22ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/99613269961326Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire SawZhu Tang0Shuqing Li1Fei Huang2Shouqing Huang3Kangxu Cai4Hunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Laboratory on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaHunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Laboratory on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaHunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Laboratory on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaHunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Laboratory on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaHunan Provincial Key Laboratory of Safe Mining Techniques of Coal Mines, Work Safety Key Laboratory on Prevention and Control of Gas and Roof Disasters for Southern Coal Mines, Hunan University of Science and Technology, Xiangtan 411201, Hunan, ChinaTo 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.http://dx.doi.org/10.1155/2021/9961326
spellingShingle Zhu Tang
Shuqing Li
Fei Huang
Shouqing Huang
Kangxu Cai
Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw
Advances in Civil Engineering
title Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw
title_full Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw
title_fullStr Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw
title_full_unstemmed Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw
title_short Exploration and Practice of Pressure Relief by Slotting Coal Seams with a Diamond Wire Saw
title_sort exploration and practice of pressure relief by slotting coal seams with a diamond wire saw
url http://dx.doi.org/10.1155/2021/9961326
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AT feihuang explorationandpracticeofpressurereliefbyslottingcoalseamswithadiamondwiresaw
AT shouqinghuang explorationandpracticeofpressurereliefbyslottingcoalseamswithadiamondwiresaw
AT kangxucai explorationandpracticeofpressurereliefbyslottingcoalseamswithadiamondwiresaw