| 孤岛工作面窄煤柱沿空掘巷围岩控制技术探讨 |
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| 引用本文： | 王春健. 孤岛工作面窄煤柱沿空掘巷围岩控制技术探讨[J]. 江西煤炭科技, 2022, 0(1): 78-81. DOI: 10.3969/j.issn.1006-2572.2022.01.028 |
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| 作者姓名： | 王春健 |
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| 作者单位： | 霍州煤电集团安全管理部,山西 霍州 031400 |
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| 摘 要： | 以正利煤业14-1105孤岛工作面为工程实例;针对沿空巷道变形严重等问题,采用理论分析及工程经验等研究手段,探讨分析了沿空掘巷支护与窄煤柱的稳定性,选定最佳煤柱宽度宜为5～6 m;对顶板实施纵向预裂卸压,拟定了预裂卸压具体技术参数;通过井下工作面应用实践,该技术方案能够有效保障巷道的安全稳定.
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| 关 键 词： | 孤岛工作面 窄煤柱 预裂卸压 围岩控制 |
Discussion on surrounding rock control technology of gob-side excavation with narrow coal pillar in Gudao face |
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| Wang Chunjian. Discussion on surrounding rock control technology of gob-side excavation with narrow coal pillar in Gudao face[J]. Jiangxi Coal Science & Technology, 2022, 0(1): 78-81. DOI: 10.3969/j.issn.1006-2572.2022.01.028 |
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| Authors: | Wang Chunjian |
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| Affiliation: | (Safety Management Department of Huozhou Coal and Power Group,Huozhou 031400,Shanxi,China) |
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| Abstract: | Taking 14-1105 Gudao working face of Zhengli Coal Industry as an example;In view of the serious deformation of gobside roadway, the stability of gob-side roadway support and narrow coal pillar is discussed by means of theoretical analysis and engineering experience, and the optimal width of coal pillar is 5 ~ 6 m. The longitudinal pre-split pressure relief of the roof is carried out, and the specific technical parameters of pre-split pressure relief are drawn up. Through the application practice of underground working face, the technical scheme can effectively guarantee the safety and stability of roadway. |
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| Keywords: | Island working face Narrow coal pillar Pre-crack pressure relief The surrounding rock control |
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