长平矿大采高工作面矿压显现规律研究

Study on Strata Behavior Regularity of Large Mining Height Working Face in Changping Mine

长平矿目前主采3号煤层,3号煤层厚度平均5.7m,顶板岩性为粉砂岩、细粒砂岩、砂质泥岩、泥岩及中粒砂岩,底板岩性为泥岩、砂质泥岩,局部为粉砂岩、细粒砂岩及中粒砂岩。为掌握长平矿一次采全高工作面矿压显现规律,采用理论分析、现场实测等方法,得到长平矿4311大采高工作面矿压显现规律,对长平矿矿压管理及安全生产具有重要意义。

Changping Mine is currently the main mining No. 3 coal seam, No. 3 coal seam thickness of 5.7m, the roof rock lithology for silt, fine sandstone, sandy mudstone, mudstone and medium grain sandstone, floor rock lithology mudstone, sandy mudstone, Local sihstone, fine sandstone and medium grain sandstone. In order to master the law of strata behavior of fully mechanized longwall top coal caving mining face in Changping Mine, the law of strata behavior of 4311 high cutting height working face in Changping Mine is obtained by theoretical analysis and field measurement, etc., and the mine pressure management and safe production of Changping Mine Significance.