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首页> 外文会议>International Symposium on Mine Safety Science and Engineering >Analysis and optimizations on retreating mining measures of rock burst prevention on steeply dipping thick coal seam in deep exploitation
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Analysis and optimizations on retreating mining measures of rock burst prevention on steeply dipping thick coal seam in deep exploitation

机译：岩土爆破防治采矿措施的分析与优化深浸煤层深入剥削

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摘要

With the reduction of mine reserves in shallow coal-bearing series, the mining proportion of steeply dipping thick coal seam in deep strata is increasingly high. Deep exploitation not only increases the chance rock burst happening in mine, but also there are some difficulties for the stability of corollary equipments in working face in the process of full-seam mining of steeply dipping thick coal seam. 4# coal seam of Huafeng colliery is under the geological condition of steeply dipping thick coal seam in deep mining. In the process of retreating mining, rock burst and stability of equipments always restrict the mine's production. Through comprehensive analysis of 4# coal seam, including the places of rock burst happened, comprehensive management actions of rock burst and the relevant mining method and so on, found that adopted the exterior entry layout of dislocated strata gateway in the colliery is still inadequate to improve the problem of stability of equipments along coal seam floor. Besides, continuous mining to the east is too long, reduce the mining speed and mining of protective seam are not effective measures, even the occurrence reasons of rock burst. In response to these issues, further proposed the internal entry layout of dislocated strata gateway, through theoretical and experimental analysis, getting that the reform of tunnels arrangement not only improve the stability of mining equipment, but also change the present situation of rock burst of 4# coal seam fundamentally in Huafeng colliery.
机译：随着浅埋煤轴承系列中矿井储量的减少，深层浸渍厚煤层的采矿比例越来越高。深入剥削不仅增加了我的机会摇滚爆裂，而且在陡峭浸渍厚煤层陡峭的厚煤层的全缝开采过程中的必备设备稳定性方面也存在一些困难。 4＃煤层煤层煤炭是深度挖掘厚煤层的地质条件下。在退缩的采矿过程中，岩石突发和设备稳定总是限制矿山的生产。通过综合分析4＃煤层，包括摇滚突发的地方发生，岩石爆裂的综合管理行动和相关的采矿方法等，发现采用了煤矿中脱位的地层门户的外部入口布局仍然不足改善煤层沿线设备稳定性问题。此外，连续开采到东部太长，降低了采矿速度和防护缝的开采是无效的措施，甚至岩石爆裂的发生原因。为了响应这些问题，通过理论和实验分析进一步提出了脱位的地层网关的内部进入布局，使隧道排列改革不仅提高采矿设备的稳定性，而且还改变了4的岩石爆裂的现状＃煤层基本上在华丰煤矿。

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