Abstract In the process of Open-pit mining in China, throwing blasting is an important method, which very likely to cause serious damage slope discharge field under action vibration load blasting. With background Heidaigou open-pit mine Ordos, velocity data were collected from near blast, and signal blast was analyzed by means Fourier transform obtain characteristics wave attenuation law predic...

Uncertainty is an inherent aspect of the open-pit mine production scheduling problem (MPSP); however, little is reported in the literature about solution methods for the stochastic versions of the problem. In this paper, two variants of a variable neighbourhood descent algorithm are proposed for solving the MPSP with metal uncertainty. The proposed methods are tested and compared on actual larg...

A longwall water jet mining machine called the Hydrominer has been developed at the University of Missouri-Rolla under a Bureau of Mines contract. The first design, referred to as Hydrominer One, has been extensively tested in an open pit mine and has clearly demonstrated that the working principle is viable. The second and greatly improved version, Hydrominer Two, has been built but has not as...

Uncertainty is an inherent aspect of the open-pit mine production scheduling problem (MPSP); however, little is reported in the literature about solution methods for the stochastic versions of the problem. In this paper, two variants of a variable neighbourhood descent algorithm are proposed for solving the MPSP with metal uncertainty. The proposed methods are tested and compared on actual larg...

Raman and infrared spectra of three well-defined turquoise samples, CuAl6(PO4)4(OH)8·4H2O, from Lavender Pit, Bisbee, Cochise county, Arizona; Kouroudaiko mine, Faleme river, Senegal and Lynch Station, Virginia were studied, interpreted and compared. Observed Raman and infrared bands were assigned to the stretching and bending vibrations of phosphate tetrahedra, water molecules and hydroxyl ion...

The mining planning and design were carried out in PT. Tanjung Alam Jaya, a coal company South Kalimantan. intends to re-mine the Pit X area requires comprehensive mine approach achieve its objectives. study focuses on long-term planning, specifically optimizing pit while considering company's specified stripping ratio limit calculating potential reserve volumes. research aims develop an optimi...

A reliability analysis of a dumper machine is performed using the neural network model. A metaheuristic algorithm is applied for proper parameter selection for the neural network. A time series approach is applied in the reliability analysis to forecast the dumper’s future failure time. The time series analysis is performed using the neural network model, where the numbers of input variables fo...