贵州煤矿煤与瓦斯突出防治技术体系研究

发布时间：2018-06-29 18:07

本文选题：突出危险性 + 保护层　；参考：《煤矿安全》2017年11期

【摘要】：贵州煤层赋存条件复杂,中小型煤矿众多,防突技术体系中存在问题,针对其突出煤层群保护层难以选择、专用瓦斯抽采巷层位布置不科学、预测预报指标不敏感、防突装备合理配备等问题进行了研究。利用构建的煤层突出危险程度评价模型对贵州典型含煤构造单元的突出危险性进行排序,并利用构建的保护层选择方法对其合理保护层进行了推荐;建立贵州突出矿井专用瓦斯抽采巷层位布置原则,并对典型含煤构造单元的合理层位进行了推荐。根据"三率"分析和基于突出危险性的指标敏感性分析,安顺、黔西南和六盘水地区敏感指标为K1,遵义和毕节地区敏感指标为△h2;建议毕节地区增加软分层作为预测指标。结合矿井防突实际需求,对防突装备进行了推荐。
[Abstract]:Because of the complex conditions of coal seam occurrence in Guizhou, the large number of small and medium-sized coal mines, and the problems existing in the technical system of outburst prevention, it is difficult to select the protective layer of outburst coal seam group, the arrangement of special gas drainage roadway is not scientific, and the prediction index is not sensitive. The reasonable allocation of outburst prevention equipment has been studied. The outburst danger of typical coal-bearing tectonic units in Guizhou is sorted by using the evaluation model of coal seam outburst risk, and the reasonable protective layer is recommended by the method of protection layer selection. The principle of roadway layout for gas drainage in Guizhou outburst mine is established and the reasonable strata of typical coal-bearing structural units are recommended. According to the "three rate" analysis and the sensitivity analysis based on the outburst risk, the sensitive index of Anshun, southwest Guizhou and Liupanshui is K1, and the sensitive index of Zunyi and Bijie is H2, and it is suggested that the soft stratification should be added as the prediction index in Bijie. Combined with the actual demand of mine outburst prevention, the outburst prevention equipment is recommended.
【作者单位】：贵州省矿山安全科学研究院;贵州省煤矿瓦斯防治工程技术研究中心;
【基金】：“十二五”国家科技支撑计划资助项目(2012BAK04B07) 贵州省社会发展攻关计划资助项目(黔科合社G字[2011]4003)
【分类号】：TD713.3

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