| 高位钻场穿层钻孔预抽上覆被保护层瓦斯技术 |
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| 引用本文： | 魏胜田. 高位钻场穿层钻孔预抽上覆被保护层瓦斯技术[J]. 煤炭科学技术, 2007, 35(6): 49-51 |
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| 作者姓名： | 魏胜田 |
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| 作者单位： | 淮北矿业(集团)有限责任公司,海孜煤矿,安徽,淮北,235007 |
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| 摘 要： | 利用海孜煤矿煤系地层顶底板岩性组合具有明显的关键层和若干个亚关键层的特点,在对10煤层保护层进行开采的同时,采用高位钻场进行穿层钻孔预抽被保护层瓦斯,取得了较好的抽放效果。
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| 关 键 词： | 关键层 高位钻场 预抽瓦斯 |
| 文章编号： | 0253-2336(2007)06-0049-03 |
| 修稿时间： | 2007-03-10 |
Gas predrainage technology for protective seam with high level drilling site |
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| WEI Sheng-tian. Gas predrainage technology for protective seam with high level drilling site[J]. Coal Science and Technology, 2007, 35(6): 49-51 |
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| Authors: | WEI Sheng-tian |
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| Abstract: | There are obvious key stratus and several subkey stratus in the roof and floor stratus of the coal seam stratus.During the protective mining in No.10 seam,a high level drilling site was applied to pre-drainage of the protective seam for gas drainage operation.The gas drainage operation had good drainage results. |
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| Keywords: | key stratus high level drilling site protective seam. |
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