综采工作面薄煤层开采矿压显现规律研究

Research on law of mining pressure manifestation in thin coal seams of comprehensive mining working face

针对超长综采工作面回采时矿压显现比较剧烈,易发生煤壁片帮、冒顶压架等事故,以补连塔煤矿454 m超长综采工作面薄煤层开采为研究对象,根据现场实际观测和对支架压力数据分析,对454 m超长综采工作面回采过程中矿压显现规律进行了研究,总结了工作面直接顶初次来压时的压力显现情况以及基本顶初次来压和周期来压时的压力显现情况和来压步距,为类似条件的工作面开采提供一定的借鉴。

In response to the severe mining pressure during the backfilling of ultra long comprehensive mining working faces,which are prone to occur accidents such as coal wall caving and roof caving,taking thin coal seam mining of the 454 meter ultra long comprehensive mining face in the Bulianta Coal Mine as research object,based upon on site observations and analysis of support pressure data,the mining pressure manifestation law during the backfilling process of the 454 meter ultra long fully comprehensive mining working face is studied,the pressure manifestation situation during the initial pressure on directly top of the working face,and the pressure manifestation situation and step distance during the initial and periodic pressure of the basic top are summarized which providing a certain reference for mining of similar working faces under similar conditions.