| 新集二矿东翼11-2煤层提高开采上限的研究与实践 |
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| 引用本文： | 苏毅 徐德成. 新集二矿东翼11-2煤层提高开采上限的研究与实践[J]. 中国煤田地质, 2004, 16(6): 29-31 |
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| 作者姓名： | 苏毅 徐德成 |
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| 作者单位： | 国投新集能源股份有限公司二矿总工办 安徽淮南232181(苏毅)，国投新集能源股份有限公司二矿总工办 安徽淮南232181(徐德成) |
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| 摘 要： | 为了提供提高煤层开采上限的根据，开展了新集井田东翼11-2煤层防水煤柱厚度、岩性组合特征及含水性的研究，井进行了推复体夹片地层下井田东翼11-2煤层的开采实验，在26m防水煤柱下实现1111200工作面安全回采，取得较好的经济效益。
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| 关 键 词： | 开采上限 防水煤柱厚度 开采实验 11-2煤层 新集二矿 |
| 文章编号： | 1004-9177(2004)06-0029-03 |
| 修稿时间： | 2004-07-29 |
A Study and Practice of Mining Upper Limit in 11-2 Coal Seam, East Wing of Xinji No.2 Mine |
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| Abstract: | For the purpose to raise the coal seam mining upper limit, carried out a study of 11-2 coal seam protecting pillar thickness, lithologic association characteristics and water-bearing capacity. Meanwhile carried out extracting experiment in east wing 11-2 coal seam under the thrust slice. Brought to effect of 1111200 working face safely extracting under the condition of 26m protecting pillar, thus achieved a better economic benefit. |
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| Keywords: | upper limit of mining protecting pillar thickness extracting experiment 11-2 coal seam Xinji No.2 Mine |
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