| 高瓦斯矿井大采高综放工作面进风巷道变形规律研究 |
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| 引用本文： | 马长乐.高瓦斯矿井大采高综放工作面进风巷道变形规律研究[J].煤,2009,18(8):17-20,30. |
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| 作者姓名： | 马长乐 |
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| 作者单位： | 潞安矿业集团余吾煤业公司,山西,长治,046103 |
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| 摘 要： | 高瓦斯矿井大采高综放工作面采用"两进两回"巷道布置方式,即在工作面切眼及上下两巷一定宽度煤柱外分别平行布置一圈巷道。回采期间,外圈巷道要受到回采全程动压影响,巷道收敛变形严重,维护难度大。通过对现场实测数据进行分析,总结了巷道收敛变形规律,为采取有效的维护方式提供了参数和依据。
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| 关 键 词： | 高瓦斯矿井 大采高综放 进风巷 巷道变形规律 |
Study of High-gas Coal Mine Large Mining Height Top-coal Caving Face Intake Airflow Drift Deformation |
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| MA Chang-le.Study of High-gas Coal Mine Large Mining Height Top-coal Caving Face Intake Airflow Drift Deformation[J].Coal,2009,18(8):17-20,30. |
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| Authors: | MA Chang-le |
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| Affiliation: | Yuwu Mining Co.;Ltd.;Lu'an Mining Group;Changzhi 046103;China |
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| Abstract: | Application of "intake and back twice" drift layout way for high-gas coal mine with large mining height top-coal caving face,that is to cut in the face and up and down the two lane outside a certain width of coal pillars were arranged around parallel drift.During recovery,outer drift is subject to the impact of mining the whole dynamic pressure,convergence drift has serious deformation,difficult to maintain.Through on-site analysis of measured data,summed up convergence of roadway deformation,provide parame... |
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| Keywords: | high-gas coal mine large mining height top-coal caving intake airflow drift drift deformation |
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