石门是一条巷道,它与地面不直接相通的水平巷道,其长轴线与所探脉线直交或斜交的岩石平巷称为石门,为开采水平服务的石门称为主要石门,为采区服务的石门称为采区石门;在厚煤层内,与煤层走向直交或斜交的水平巷道,称为煤门。无直接地面出口,垂直于矿体走向,主要是在围岩内向矿体掘进的水平巷道,起联络作用,无直接探矿意义。 石门揭煤是在巷道掘进过程中,遇到煤层时,揭露煤层的过程。
文章详细信息 关键词: 石门揭煤;;新工艺;;防止突出;;加压 [gap=509]Keywords: rock cross-cut coal uncovering;new technology;prevent outburst;pressurizing
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文章详细信息 关键词: 石门揭煤;;应力集中;;防突措施 [gap=521]Keywords: uncovering coal in crosscut;stress concentration;outburst prevention measures
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The coal seam after the solidification, cross-measure cutting coal time is only 1/3 time of original cutting coal or to be even shorter.
煤层经过固化后,石门揭煤时间仅为原揭煤时间的三分之一甚至更短。
参考来源 - 煤体固化石门揭煤防突技术研究·2,447,543篇论文数据,部分数据来源于NoteExpress
结果表明,10水平在石门揭煤条件下具有发生突出危险。
The results indicate that outburst will occur under the condition of rock cross-cut coal uncovering in 10 level of Majiagou coal mine.
该方法在祁南煤矿南大巷石门揭煤中得到了应用,并取得了良好的效果。
The method is applied in Qinan Coal Mine Avenue South crosscut exposing coal. The good results are achieved.
应用初始释放瓦斯膨胀能指标法和综合指标法,对石门揭煤的突出进行了危险性分析。
With the application of the methods of the energy the initial releasing gas and the aggregate, the paper will mainly focus on the analysis of the outburst of the rock cross-cut coal uncovering.
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