| 晋城15号煤层坚硬顶板条件下工作面合理长度的确定 |
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| 引用本文： | 梁大海,田取珍.晋城15号煤层坚硬顶板条件下工作面合理长度的确定[J].太原理工大学学报,2006,37(2):139-141,154. |
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| 作者姓名： | 梁大海 田取珍 |
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| 作者单位： | 太原理工大学,矿业工程学院,山西,太原,030024 |
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| 基金项目： | 山西省晋城市政府资助项目 |
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| 摘 要： | 利用两种极限边界条件下悬板力学模型得出的坚硬项板下初次来压步距与合理工作面长度的关系，计算出了沁水豹凹沟煤矿等四个矿15号煤层的合理工作面长度，并运用坚硬岩层的破断规律进行了综合分析，提出了其工作面长度的合理选择，并最终确定了晋城矿区15号煤层坚硬顶板条件下合理工作面长度。工作面合理长度在80～115m之间，用此数据指导晋城矿区15号煤层的开采施工。
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| 关 键 词： | 坚硬顶板 合理工作面长度 岩板模型 破断规律 |
| 文章编号： | 1007-9432（2006）02-0139-03 |
| 收稿时间： | 2005-10-20 |
| 修稿时间： | 2005-10-20 |
Determination of Rational Coalface Length under Hard Roof of No.15 Seam in JinCheng |
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| LIAGN Da-hai,TIAN Qu-zhen.Determination of Rational Coalface Length under Hard Roof of No.15 Seam in JinCheng[J].Journal of Taiyuan University of Technology,2006,37(2):139-141,154. |
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| Authors: | LIAGN Da-hai TIAN Qu-zhen |
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| Institution: | College of Ming Engineering of TUT, Taiyuan 030024, China |
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| Abstract: | This paper calculates coalface length of No. 15 seam in four mines in Qinshui area by using the relation between first weighting span and rational eoalface length under hard roof on overhanging plate mechanical models under two kinds of extremt boundary conditions, analyses synthetically it by using the rupture regularity of hard roof, gives their coalface length rational choice, at last determines rational coalfaee length under hard roof of No. 15 seam in JinCheng. The rational length is between 80 m and 115 m, with which we can guide the mining of the No. 15 seam in JingCheng mining area. |
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| Keywords: | hard roof rational coalface length rock plate rupture regularity |
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