大采高浅埋煤层综采面矿压规律研究

Study on Mine Strata Pressure Law of High Cutting Fully Mechanized Coal Mining Face in Shallow Depth Seam

为了掌握泰山隆安公司大采高浅埋煤层综采面矿压显现规律,应用现场实测、理论计算、数值模拟等研究方法对泰山隆安公司8101工作面进行了矿压显现规律分析。研究结果表明:该工作面初次来压步距54～59m,平均55.5m;周期来压步距12.6～15.8m,平均14.16m;基本顶属Ⅳ级a类的来压非常强烈型;工作面支架的末阻力随初撑力呈线性增长;沿工作面方向压力具有中部较大、上部和下部较小的特点。

In order to master the mine strata pressure behavior law of the high cutting fully mechanized coal mining face in the shallow depth seam of Taishan Long Jan Company, a site actual measurement, theoretical calculation, numerical simulation and other study method were applied to the analysis on the mine strata pressure behavior law of No. 8101 coal mining face in Long＇an Company. The study results showed that the initial roof weighting distance of the coal mining face was 54 - 59m and the average distance was 55.5m. The periodical roof weighting distance was 12. 6 - 15.8m and the average distance was 14. 16m. The base roof was an IV grade A type and the roof weighting was very serious. The rear resistance of the powered support in the coal mining face would be linearly increased with the initial support increased. The pressure along the direction of the coal mining face would be high in the middle of the coal mining face and be low in the top and bottom part of the coal mining face.