超大综采面过上覆集中煤柱应用研究

    Research on the application of overlying concentrated coal pillars of super-large fully-mechanized mining faces

    • 摘要: 补连塔煤矿煤层厚、埋藏浅、层间距较小,上覆集中煤柱对综采面开采影响较大。本文以补连塔煤矿22404综采面为例,对综采面过上覆集中煤柱工艺进行研究。本文对综采面过煤柱期间矿压显现规律及预测预报、综采面支护和工程质量、综采面机电设备维护、综采面防止压架措施等方面进行分析,避免过上覆集中煤柱时出现矿压显现强烈导致支架压死、冒顶、顺槽片帮、锚杆或锚索飞溅伤人等事故。本文对22404综采面过上覆采空区集中煤柱情况进行研究,对以后类似综采工作面的回采具有指导意义。

       

      Abstract: The coal seam of Bulianta Coal Mine is thick, shallow, and the interval between layers is small. The overlying concentrated coal pillars have a greater impact on the fully-mechanized mining face. Taking 22404 fully mechanized mining face in Bulianta Coal Mine as an example, this paper studies the technology of the fully-mechanized mining face passing through the overlying concentrated mining pillars. This paper analyzes the occurrence and prediction of mining pressure during the passage of coal pillars in the fully-mechanized mining face, the support and engineering quality of the fully-mechanized mining face, the maintenance of mechanical and electrical equipment in the fully-mechanized mining face, and the measures to prevent the collapse of the fully-mechanized mining face. Avoid accidents such as death of support, roof fall, slotting, bolt or anchor cable splashing and injury caused by strong ground pressure when passing the overlying concentrated coal pillar. This paper studies the situation of 22404 fully-mechanized mining face passing through the concentrated coal pillars in the overlying goaf, which has guiding significance for the future mining of similar fully-mechanized mining faces.

       

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