综放工作面临采空侧回风巷丛柱鞋支护技术的应用

Application of Cluster Column Support Technology in Goaf Side Return Air Tunnel under Fully Mechanized Caving Face

为解决综放工作面采空侧动压巷道矿压剧烈,变形严重,影响安全生产的难题,在81202工作面应用了丛柱鞋的支护技术。生产实践表明丛柱底座增大,为原单鞋单柱底座面积的7倍,有效地解决了原单鞋单柱钻底严重现象,避免了巷道的底鼓和减轻顶板来压时对巷道的破坏,抑制巷道收缩变形起到一定的效果。

In order to solve the fully mechanized caving face goaf in dynamic pressure roadway mine pressure isintense, serious deformation problems that affect the safety of production, in the 81202 working face of shoes clusterpillar supporting technology. The application of cluster column base increases, 7 times the original shoes single columnbase area, effectively solve the original single shoes at the end of the drill string serious phenomenon, to avoid damageto the roadway roadway floor heave and reduce roof pressure, inhibit the shrinkage deformation of roadway effect.