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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Format: | Article |
Language: | English |
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Wiley
2021-01-01
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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. |
format | Article |
id | doaj-art-a9e6d2f4df814c3eaf201458605a756d |
institution | Kabale University |
issn | 1687-8086 1687-8094 |
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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