| 大倾角软厚煤层巷道围岩控制技术探讨 |
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| 引用本文： | 高怀俊. 大倾角软厚煤层巷道围岩控制技术探讨[J]. 江西煤炭科技, 2021, 0(1): 52-54. DOI: 10.3969/j.issn.1006-2572.2021.01.016 |
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| 作者姓名： | 高怀俊 |
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| 作者单位： | 山西潞安集团潞宁孟家窑煤业公司,山西 忻州 036000 |
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| 摘 要： | 以孟家窑11505胶带顺槽为工程实例,探讨大倾角软厚煤层巷道稳定性控制方法;在分析巷道顶板和两帮受力的基础上,拟采用留设巷间煤柱和锚杆索联合支护方式;工程实践表明,在留设30 m煤柱和采用高强度锚杆索联合支护后,巷道顶板下沉量保持在15 mm,两帮移近量稳定在26 mm;巷道整体受力平稳且完整性良好,为11505工作面...
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| 关 键 词： | 软厚煤层 大倾角 围岩控制技术 联合支护 变形破坏 |
Discussion on Surrounding Rock Control Technology in Roadway with Large-inclined-angle Soft and Thick Coal Seam |
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| Gao Huaijun. Discussion on Surrounding Rock Control Technology in Roadway with Large-inclined-angle Soft and Thick Coal Seam[J]. Jiangxi Coal Science & Technology, 2021, 0(1): 52-54. DOI: 10.3969/j.issn.1006-2572.2021.01.016 |
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| Authors: | Gao Huaijun |
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| Affiliation: | (Luning Mengjiayao Coal Industry Co.,Ltd.,Lu’an Group,Xinzhou,Shanxi 036000) |
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| Abstract: | Taking the engineering of 11505 belt crossheading in Mengjiayao Coal Industry Co.,Ltd.,for instance,the paper probes into the stability control method in roadway with large-inclined-angle soft and thick coal seam and proposes the setting coal pillars between roadways and combined support with bolt and boltmesh by analysis of the pressure on the roof and two sides of roadway,which can keep the roof subsidence in 15 mm,the convergence of two sides in 26mm with stable overall stress and good integrity in roadway and guarantee the safety production. |
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| Keywords: | soft and thick coal seam large inclined angle surrounding rock control combined support deformation and failure |
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