厚煤层放顶煤大角度扇形收尾施工工艺实践

Discussion on the Construction Technology Practice of Wide-angle Sectorial Ending of Top Coal Caving in Thick Coal Seam

以左云长春兴煤业公司301综放工作面扇形收尾施工工艺为背景,介绍了在工作面受地质构造或者井田边界影响,工作面两顺槽与盘区大巷斜交布置时,为了多回收煤炭资源,提高经济效益,采取大角度扇形收尾的施工工艺,为厚煤层放顶煤大角度扇形收尾提供了借鉴和理论依据。

The paper takes the construction technology practice of sectorial ending in 301 fully mechanized caving face of Zuoyun Changchunxing Coal Industry Co.,Ltd.,Shanxi Coal Imp.&Exp.Group Co.,LTD as the background,introduces the influence of geological structure or well field boundary on working face,in order to recover more coal resources and improve economic benefits,the construction technology of wideangle sectorial ending is adopted when the two grooves of working faces are arranged obliquely with the panel roadway,which provides reference and theoretical basis for wide-angle sectorial ending of top coal caving of thick coal seam.