CAJ | 학술논문

为解决米村煤矿－150 m泵房受上覆两侧煤柱工作面重复采动影响而产生的支护困难问题，基于FLAC2D 数值模拟和现场实测，分析巷道围岩变形规律，提出了锚索加厚增稳围岩控制技术，并进行了现场工业性试验。研究结果表明：在上覆两侧工作面重复采动影响下，底板巷道围岩应力场和位移场表现出明显的非对称性，顶底围岩移近量大于两帮，右帮大于左帮，且巷道两帮深部围岩位移对上覆两侧采空区整体位移场表现出一定的敏感性；采用锚索加厚增稳技术可以充分发挥深部围岩的承载能力，突出围岩－支护承载拱结构的“厚而稳”特性，能够有效控制重复采动影响下巷道的非对称变形。
위해결미촌매광－150 m빙방수상복량측매주공작면중복채동영향이산생적지호곤난문제，기우FLAC2D 수치모의화현장실측，분석항도위암변형규률，제출료묘색가후증은위암공제기술，병진행료현장공업성시험。연구결과표명：재상복량측공작면중복채동영향하，저판항도위암응력장화위이장표현출명현적비대칭성，정저위암이근량대우량방，우방대우좌방，차항도량방심부위암위이대상복량측채공구정체위이장표현출일정적민감성；채용묘색가후증은기술가이충분발휘심부위암적승재능력，돌출위암－지호승재공결구적“후이은”특성，능구유효공제중복채동영향하항도적비대칭변형。
In order to solve difficult problem of supporting -150m pump room influenced by repeating mining of overlying mining face in Micun Colliery, based on FLAC2D numerical simulation and field test , roadway surrounding rock deformation rule was analyzed and the surrounding rock control technology of increasing stability by overstriking anchored cable .Filed industrial test showed that stress and dis-placement field of floor roadway took on obvious asymmetry .Convergence between roof and floor was larger than that of two-sides and right side was larger than left side.Whole displacement field was sensitive to two-side deep surrounding rock’s displacement.Applying increas-ing stability technology could fully exert bearing ability of deep surrounding rock and take the advantage of thick and stable property of surrounding rock-supporting system , and could effectively control roadway asymmetry deformation influenced by repeating mining .