受相邻工作面影响的煤巷支护技术  

Analysis on roof support technology of seam gateway affected by adjacent coal mining face

作　　者：阚世光 杜杨柱 

机构地区：[1]枣庄矿业(集团)有限责任公司付村煤业公司,山东枣庄277605

出　　处：《煤炭科学技术》2008年第8期18-21,共4页Coal Science and Technology

摘　　要：针对某矿受相邻工作面影响的回风平巷12工程地质实际条件,运用FLAC^(3D)三维数值模拟软件,详细分析了工作面回采影响下巷道支承压力分布以及巷道围岩变形规律。研究结果表明,采动引起的侧向支承压力集中区位于煤柱附近上方的岩层中,并靠近采空区一侧。受动压影响巷道变形受工作面开采影响很大,在留有合适保护煤柱的前提下,高强全长树脂锚固锚杆可以有效的控制此类巷道的围岩变形,同时采用钢筋锚网及锚索加强支护技术,以提高锚杆的整体支护效果。Aeeording to the geologieal site eonditions of No. 12 return air way influeneed by the adjaeent eoal mining faee in a mine, 3D numerieal simulation software FLAC3D was applied to analyze the support pressure distribution and the surrounding roek deformation law of the gateway influeneed by the mining operation of the eoal mining faee. The researeh results showed that the lateral support pressure eoncentrated area eaused by the mining was located in the strata adjaeent above the eoal pillar. At the one side of the goaf, the deformation of the gateway eaused by the mining had a high influenee of the eoal faee mining operation. On the premise of keeping rational proteetive eoal pillar, the high strength and full length resin bolt ean be effeetively to eontrol the surrounding roek deformation in sueh gateway. Meanwhile, the steel mesh and anehor eombined support shall be applied to improve the whole support results of the bolt support system.

关 键 词：回采影响 数值分析 护巷煤柱 支承压力 

分 类 号：TD353[矿业工程—矿井建设]