| 近距离煤层顶层预采综采放顶煤试验 |
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| 引用本文： | 翟新献,史保国.近距离煤层顶层预采综采放顶煤试验[J].西安科技大学学报,2001,21(4):312-315. |
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| 作者姓名： | 翟新献 史保国 |
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| 作者单位： | 焦作工学院,资源与材料工程系, |
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| 基金项目： | 原煤炭部科技攻关项目(项目编号96-351) |
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| 摘 要： | 根据改造型支架低位放顶煤特点,提出了现场生产合理放煤方式选择的原则,在综放工作面进行一刀一放,、二刀一放、三刀一放和三刀二放,以及不同放煤工艺放煤试验的基础上,确定了放煤步距为1.2 m的双轮间隙放煤方式,这是近距离煤层预采顶层后,下层煤综放开采时最佳放煤方式,并在义马煤业集团常村煤矿进行了推广应用.
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| 关 键 词： | 近距离煤层 综放工作面 放煤试验 放煤步距 |
| 文章编号： | 1671-1912(2001)04-0312-04 |
| 修稿时间： | 2001年5月21日 |
Drawing test in fully mechanized working face with sublevel caving after mining the up-seam of contiguous seams |
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| ZHAI Xin xian,SHI Bao guo.Drawing test in fully mechanized working face with sublevel caving after mining the up-seam of contiguous seams[J].JOurnal of XI’an University of Science and Technology,2001,21(4):312-315. |
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| Authors: | ZHAI Xin xian SHI Bao guo |
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| Abstract: | According to the characteristic of the low drawing position transformed support, this paper puts forward a choosing principle of reasonable drawing pattern in situ production. Based on drawing test of the different drawing technology in fully mechanized working face with sublevel caving, which is mined in the light of cutting one knife then drawing one time, two knives then drawing one time, three knives then drawing one time, three knives then drawing two times, it is determined that double turns gap drawing pattern with 1.2 m drawing interval in fully mechanized mining with sublevel caving is optimal drawing pattern after the up seam of contiguous seams has been mined. The pattern has been widely utilized in Changcun colliery of Yima coal mining group. |
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| Keywords: | contiguous seams fully mechanized working face with sublevel caving drawing test drawing interval |
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