准格尔煤田20〜28m煤层综放工作面矿压规律研究

Research of ground pressure law in fully mechanized caving face of 20-28m coal seam in Zhungeer coal field

准格尔旗煤田特厚煤层储量丰富,综放开采一次采全厚开采方法是其最佳开采手段,文章以准格尔煤田龙王沟煤矿特厚煤层61605综放工作面地质及开采条件为背景,通过现场矿压实测,从初采期间工作面支架压力变化特征、顶煤及顶板运动特征等方面分析工作面矿压规律,为类似地质条件综放工作面开采安全、高效开采提供技术依据。

Zhungeer coal field is rich in reserves of extra thick coal seam. The optimal mining method is fully mechanized caving mining with one-time full seam extraction. Based on the geological and mining conditions of 61605 fully mechanized caving face in Longwanggou Coal Mine of Zhungeer coal field, by onsite mesurement of ground pressure, the behavior law of ground pressure, which is analyzed by the characteristics of the pressure variation of the working face shields in initial period, characteristics of movement of top coal and roof, provides the techical backstopping for the mining safety and efficient mining of fully mechanized caving faces of similar geological conditions.