CAJ | 학술논문

尾矿库坝体的稳定性对矿山安全有着重要意义。结合某钨矿尾矿库坝体条件采用PFC2D软件对各土层的微观参数进行了标定，并基于PFC2D建立数值模型分析在洪水位工况条件下尾矿库坝体的稳定性；在模型中设立了监测圆，对强度折减条件下监测圆内部的应力变化情况进行了监测，通过应力变化曲线及模型中颗粒的位移情况，分析了洪水工况下尾矿坝失稳破坏的形态及其发展过程。同时对比分析了PFC2D软件模拟和瑞典圆弧法计算结果，讨论了PFC2D计算出尾矿库安全系数大的原因，为钨矿尾矿库坝体构筑提供数据支撑和理论依据。
미광고패체적은정성대광산안전유착중요의의。결합모오광미광고패체조건채용PFC2D연건대각토층적미관삼수진행료표정，병기우PFC2D건립수치모형분석재홍수위공황조건하미광고패체적은정성；재모형중설립료감측원，대강도절감조건하감측원내부적응력변화정황진행료감측，통과응력변화곡선급모형중과립적위이정황，분석료홍수공황하미광패실은파배적형태급기발전과정。동시대비분석료PFC2D연건모의화서전원호법계산결과，토론료PFC2D계산출미광고안전계수대적원인，위오광미광고패체구축제공수거지탱화이론의거。
The stability of tailings dam has important significance for mine safety. The microscopic parameters of each layered soil were calibrated based on the specific conditions of a tungsten tailings dam by PFC2D software. The stability of the tailings dam under the flooding condition was analyzed by PFC2D numerical simulation model. The monitoring circle was set up in the model to supervise the stress changes within the monitoring circle under the strength reduction conditions. The instability morphology and development process for the tailings dam under the flooding condition were analyzed by observing stress curve and particle displacement in the model. The testing results were compared with those of the Sweden Arc Method established by PFC2D, which provided favorable data support and theoretical basis for constructing tungsten mine's tailings dam.