| 后堡煤业近距离下煤层巷道稳定性控制研究 |
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| 引用本文： | 李庆墅. 后堡煤业近距离下煤层巷道稳定性控制研究[J]. 山东煤炭科技, 2021, 39(3): 27-29 |
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| 作者姓名： | 李庆墅 |
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| 作者单位： | 潞安集团蒲县后堡煤业,山西蒲县041200 |
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| 摘 要： | 为探究近距离煤层群下部煤层工作面安全开采巷道控制措施,在分析后堡煤业1003工作面底板应力传递的基础上,确定了1003工作面运输巷采用内错30m的布置方式,进行锚杆索补强支护.实践效果表明,1003工作面巷道顶底板移近量稳定在125 mm,两帮移近量稳定在197 mm,顶板岩层离层量基本在10mm以内,巷道变化处在可控...
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| 关 键 词： | 开切眼 大断面 稳定控制 |
Study on Stability Control of Coal Mine in Close Coal Seam of Houbao Coal Industry |
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| Li Qingshu. Study on Stability Control of Coal Mine in Close Coal Seam of Houbao Coal Industry[J]. Shandong Coal Science and Technology, 2021, 39(3): 27-29 |
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| Authors: | Li Qingshu |
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| Affiliation: | (Lu'an Group Puxian Houbao Coal Industry,Shanxi Puxian 041200) |
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| Abstract: | In order to explore the control measures of safe mining roadway in the lower coal seam face of close coal seam group,based on the analysis of the stress transfer of the floor of Houbao Coal Mine 1003 working face,it is determined that the transportation roadway of 1003 working face should be arranged with an internal stagger of 30 m,and the anchor cable reinforcement support is carried out.The practical results show that the roof and floor displacement of the 1003 working face is stable at 125 mm,the two sides are stable at 197 mm,the roof rock layer is basically within 10 mm,and the roadway change is in a controllable range,which can meet the needs of normal mine production. |
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| Keywords: | open-off cut large section stable control |
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