Study on Limit Height and its Stability of Open-Pit Dump Based on Basement Bearing Mechanism

Abstract

This paper, which combines with the actual situation of mine, discusses the limit height and stability of the dump. Based on the basement bearing mechanism and different types of topsoil thickness, a method to calculate the height of the dump is put forward. Since the topsoil of Xichuan dump belongs to the thin type (h< h1+h2), and take into account of dumping technology, the limit height is determined to be 220 meters, which exceed design level (160m). And then, using limit equilibrium method based on Geo-Slope to analyze stability of the slope. The value of slope safety factor is 1.175~1.210, which is in conformity with the basic requirement of safety. In addition, the result also provides the dependable basis for the dump expansion.

Innuendoes of Sterilisation Drilling in Surface Mining Operations—A Case Study

“…Waste dump lift height should necessarily be constant, though is restricted to prevent shear stresses on the foundation and is a factor to control consolidations and permeability variations [26]. The mining laws of Ghana also restricts the lift height to a maximum of 15 m. Though the total height of the dump is also restricted by formation mechanism [27] and carrying capacity limitations [28], the Ghanaian mining code limits the maximum dump height to the height of the highest topography in the vicinity. Also, the berm distance is petched at a minimum of 10 m to allow for battering before rehabliatiton such that the batter angle (θ 1 ) is less than the angle of repose (θ).…”

Organization of non-metallic deposits development by steep excavation layers

“…Особливої уваги при вирішенні поставленої мети заслуговують роботи, виконані під керівництвом відомих закордонних та вітчизняних науковців: Дребенштедта (Drebenstedt, Ritter, Suprun, & Agafonov, 2015), Жао (Zhao & Liu, 2013;Peng, Ji, Zhao, Ren, 2013), Лондоно (Londono, Knights, & Kizil, 2012, Гуменика (Gumenik, Lozhnikov, & Maevskiy, 2012), Горової (Gorova, Pavlychenko, Borysovs'ka, & Krups'ka, 2013) та інших.…”

Methodology for a Dump Design Optimization in Large-Scale Open Pit Mines

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