沿空留巷巷旁充填支护效果及经济效益分析

Analysis on Support Effect and Economic Benefit of Gob-side Entry Retaining Roadside Filling

以某矿L4406工作面为研究对象,阐述了巷旁充填的工艺设计,从经济效益、社会效益分析了巷旁充填的优越性,并对L4406工作面巷旁充填的支护效果进行考察,巷道在经历了支承压力和L4406工作面一次采动影响后,留巷的整体效果良好,巷道断面平均收缩率小,使得后期维护工程量小,完全满足预期留巷的设计要求。

Taking L4406 working face of a mine as the research object,the process design of stowing Adjacent gob is introduced both economically and socially. And the effect of the support is also evaluated. The experience shows that the overall effect of the retaining roadway remains perfect with the roadway average shrinkage being very small while mining in L4406 working face,the post-mining maintenance cost keeps in lower level,fully meets the expectance.