火成岩侵入工作面支架选型研究

Igneous rock intrusion coal face support selection research

由于火成岩侵入的影响,岩石硬度比较高,直接顶会在工作面推进一段距离后再断裂、垮落,形成对支架的冲击载荷。冲击载荷会带来剧烈的矿压显现,对液压支架的损坏严重,不利于工作面的安全生产。本文以8205工作面火成岩侵入直接顶为背景,对液压支架工作阻力开展研究,为类似条件下煤层开采的安全性提供技术支持。

Because of the influence of the igneous rock intrusion, rock hardness is higher, immediate roof in working face advancing distanceagain after fracture and caving, form the impact load of scaffold. Impact load will bring severe pressure, of the hydraulic support was badlydamaged and is not conducive to safety production of working face. Based on the background of igneous intrusion direct roof of 8205 face,studies on the hydraulic support working resistance, for the safety off the coal seam mining under similar conditions to provide technicalsupport.