Stability analysis of varying height waste dump in open-pit mine under particle size gradation and reconstruction effect of waste materials
Ya Tian, Wei Zhou, Izhar Mithal Jiskani, Qingxiang Cai, Zhaolin Li, Xiang Lü
Abstract
This study determines the safety-stability factors of the waste dump benches at different heights and analyses the deformation law, stress variation, and crack propagation characteristics of typical slope models. The meso-mechanical parameters obtained by discrete element numerical simulation are modified through slope radar monitoring data. The results show that the critical height of the dumping benches of the studied open-pit mine is 60 ~ 70 m, and the amount of bench settlement is positively correlated with the height of the benches. After the critical height is exceeded, the bench forms a three-wedge failure due to uneven settlement.
Topics & Concepts
GradationWedge (geometry)Geotechnical engineeringSettlement (finance)Discrete element methodGeologyEnvironmental scienceDeformation (meteorology)MechanicsMathematicsGeometryComputer visionPaymentOceanographyWorld Wide WebPhysicsComputer scienceRock Mechanics and ModelingGeotechnical Engineering and AnalysisTailings Management and Properties