CAJ | 학술논문

在金属矿山的深部开采过程中,岩爆的问题时有发生,现阶段对于岩爆问题的致灾原因分析主要集中在高地应力的领域,具有一定的局限性。通过引入能量指标以及冲击危险性应力指标,将岩石自身性质以及岩体所处应力状态等指标引入,丰富了岩爆研究的参数。借助FLAC3D 数值分析手段,对玲珑金矿未来深部开采过程中可能面临的岩爆问题进行模拟研究,,初步确定了玲珑金矿岩爆的危险性指数以及岩爆释放能量的大小,明确了岩爆的发生范围,并与现场的实地情况进行对比,较好地吻合了现场的实际情况,这也为玲珑金矿的安全生产、下一步的回采工作及岩爆的安全控制提供了依据。
재금속광산적심부개채과정중,암폭적문제시유발생,현계단대우암폭문제적치재원인분석주요집중재고지응력적영역,구유일정적국한성。통과인입능량지표이급충격위험성응력지표,장암석자신성질이급암체소처응력상태등지표인입,봉부료암폭연구적삼수。차조FLAC3D 수치분석수단,대령롱금광미래심부개채과정중가능면림적암폭문제진행모의연구,,초보학정료령롱금광암폭적위험성지수이급암폭석방능량적대소,명학료암폭적발생범위,병여현장적실지정황진행대비,교호지문합료현장적실제정황,저야위령롱금광적안전생산、하일보적회채공작급암폭적안전공제제공료의거。
The rock burst often happens in the procedure of deep mining in the metal mine. Studies on the reasons for the rock burst mainly focus on the high in-situ stress field with some limitations. In this study,the energy index and the stress index of shock hazard were introduced with consideration of rock properties and the state of the rock, enriching the parameters of studying rock burst. With the use of FLAC3D numerical simulation method,the problem of rock burst in deep mining in Linglong gold mine was simulated. Then,the risk for rock burst,the volume of the released energy and the scope of rock burst were pri-marily determined,which was in accordance with the actual situation after comparison. Therefore,this method can provide the basis for safe production and the following stoping in Linglong gold mine.