| 松软岩层条件下煤巷支护设计与矿压观测 |
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| 引用本文： | 邢志慧. 松软岩层条件下煤巷支护设计与矿压观测[J]. 山东煤炭科技, 2021, 39(1): 51-53 |
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| 作者姓名： | 邢志慧 |
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| 作者单位： | 大同煤矿集团挖金湾虎龙沟煤业有限公司,山西大同037003 |
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| 摘 要： | 以同煤集团挖金湾虎龙沟煤矿5#煤层为研究对象,进行了松软岩层条件下煤巷支护设计与矿压观测研究.通过原岩应力、松动圈测量,确定5#煤层煤巷顶板为剪切-拉伸破坏模式,应用FLAC3D对比分析多种支护方案,提出斜顶锚和强帮强角的支护设计方案.巷道围岩表面收敛和顶板离层量监测结果表明,优化后支护设计方案合理可行.
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| 关 键 词： | 松软 煤巷 支护 |
Support Design and Mine Pressure Observation of Coal Roadway under Soft Rock Stratum Condition |
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| Xing Zhihui. Support Design and Mine Pressure Observation of Coal Roadway under Soft Rock Stratum Condition[J]. Shandong Coal Science and Technology, 2021, 39(1): 51-53 |
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| Authors: | Xing Zhihui |
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| Affiliation: | (Wajinwan Hulonggou Coal Industry Co.,Ltd.,Datong Coal Mine Group,Shanxi Datong 037003) |
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| Abstract: | Taking No.5 coal seam of Wajinwan Hulonggou Coal Mine of Datong Coal Mine Group as the research object,the support design and mine pressure observation of coal roadway under soft rock stratum condition are studied.By measuring the original rock stress and loose ring,the roof of coal roadway in the 5# coal seam is determined as shear-tension failure mode,and the supporting design scheme of inclined roof anchor and strong side angle is put forward by comparing and analyzing various supporting schemes with FLAC3D.The results of surface convergence and roof separation monitoring show that the optimized support design scheme is reasonable and feasible. |
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| Keywords: | soft coal roadway support |
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