布尔台煤矿52305综采工作面回采技术研究

Study on mining technology of 52305 fully mechanized mining face in Buertai Coal Mine

52305综采工作面为右工作面,工作面长度为322.15 m,推进长度2076.67 m,设计采高3.1 m,煤层厚度2.5~3.5 m。52305工作面地表为黄土沟壑区,地表标高1216~1334 m,最大高差118 m;回采面上部有43煤层的43204综采采空区、43205综采采空区,层间距58~63m;对工作面初次来压及周期来压,特殊地质条件下来压情况进行了详细介绍,对类似综采工作面的回采具有指导意义。

The 52305 fully mechanized mining face is a right working face with a length of 322.15 m,a advancing length of 2076.67 m,a design mining height of 3.1 m,and a coal seam thickness of 2.5-3.5 m.The surface of 52305 working face is in a loess gully area,with a surface elevation of 1216-1334 m and a maximum elevation difference of 118 m.There are 43204 and 43205 fully mechanized goafs of 43 coal seam in the upper part of the mining face,with a layer spacing of 58-63 m.A detailed introduction is given to the initial pressure and periodic pressure of the working face,as well as the pressure situation under special geological conditions,which has guiding significance for the future recovery of similar fully mechanized working faces.