| 孤岛综放面窄煤柱沿空掘巷围岩控制技术研究 |
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| 引用本文： | 张煜. 孤岛综放面窄煤柱沿空掘巷围岩控制技术研究[J]. 煤, 2019, 0(7): 13-15,21 |
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| 作者姓名： | 张煜 |
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| 作者单位： | 西山煤电股份公司马兰矿 |
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| 摘 要： | 针对马兰矿18506孤岛工作面赋存情况,综合采用理论分析、数值模拟、工程实践等手段,分析确定了沿空掘巷留设煤柱尺寸为8m,提出帮顶锚杆支护、顶板锚索加固、煤柱锚索梁加固和局部顶板破碎地段注浆加固联合支护方式,并优化设计了巷道支护参数。现场实践表明,18506工作面沿空巷道位移变化量小,巷道顶底板移近量为378.4mm,两帮移近量为279.6mm,巷道变形程度低,完全满足生产安全要求。
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| 关 键 词： | 孤岛综放面 窄煤柱 沿空掘巷 煤柱宽度 围岩控制 |
Control Technology of Surrounding Rock along the Empty Excavation Lane of Narrow Coal Pillar in the Integrated Surface of the Island |
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| ZHANG Yu. Control Technology of Surrounding Rock along the Empty Excavation Lane of Narrow Coal Pillar in the Integrated Surface of the Island[J]. Coal, 2019, 0(7): 13-15,21 |
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| Authors: | ZHANG Yu |
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| Affiliation: | (Malan Coal Mine of Xishan Coal Electricity Group Co., Ltd.,Gujiao030200,China) |
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| Abstract: | ZHANG Yu(Malan Coal Mine of Xishan Coal Electricity Group Co., Ltd.,Gujiao030200,China) |
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| Keywords: | isolated fully mechanized caving face narrow coal pillar gob-side tunneling coal pillar width surrounding rock control |
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