This study proposes a novel approach for enhancing the productivity of mining haulage systems by developing hybrid model that combines machine learning (ML) and discrete event simulation (DES) techniques to predict ore production. utilized time data collected from limestone underground mine using tablet computers Bluetooth beacons 15 weeks. The were used train an ML truck cycle time, support ve...

The determination of gas content in coal and rock mass is the basic work to predict emission working face mine. Generally speaking, exists body adsorbed state free state, amount accounts for a large proportion. In order explore occurrence lime mass, isothermal adsorption experiments are carried out on K2 K3 limestone Yangquan mining area. show that capacity very small mainly as gas. When temper...

sarcheshmeh copper mine, with the final reserves of 828 million tons of sulfur ore and average grade of 0.74%, is known to be the largest open pit of iran and most probably the second largest copper mine in the world. this mine is located in the seismotectonic zone of central-iran, and 23 km away from the 150 km long rafsanjan active fault.in this study the vulnerability of the west wall of the...

The distribution of ground-water radiocarbon ages from the Tertiary limestone aquifer (includes the Floridan aquifer) in South Carolina shows both a typical trend for a regional sedimentary aquifer plus a lesscommonly reported occurrence of disjunct outliers of recharging and thus high vulnerability to contamination located farther down the regional flow system. The main recharge area, and thus...

Water inrush disasters from the coal seam floor occur frequently due to high water pressure of Ordovician limestone aquifer, multiple aquifers and strong mining disturbance. We presented a model water-resisting key strata (WRKS) investigate mechanism in deep mines. Roof hydraulic fracturing (RHF) for controlling multi-parameter monitoring were proposed validated Xingdong mine Xingtai, Hebei Pro...

Replacement dolomite in the Latemar carbonate buildup, northern Italy, formed when limestone was infiltrated by and reacted with Mg-rich fluid. It occurs in discrete bodies in sharp contact with unreacted limestone. The dolomite developed in a nearly orthogonal lattice of vertical columns (replacement of limestone breccia pipes) and sheets (replacement along fractures and limestone-dike contact...

Pseudonannolene ambuatinga n. sp. and Pseudonannolene saguassu n. sp. are described from individuals collected in limestone caves in the municipality of Pains, Minas Gerais, Brazil, which comprises a scenario of great conflict between speleological preservation and limestone extraction. The two species differ in their gonopod morphology and in size and color. Pseudonannolene ambuatinga n. sp. i...