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(PDF) COST ESTIMATION FOR OPEN PIT MINES: TACKLING COST ...

PDF | This article presents cost models for open pit mines, which takes into account cost uncertainty. In this paper, cost uncertainty is considered as cost of under production, and cost of over ...[...]

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The process of ore exploitation in open-cast coal mining is complex and demands hiring many people and providing varied equipment. In order to provide continuous (twenty-four hours a day) production and to excavate the planned amount of ore and overburden in an open-cast coal mine, it is necessary to achieve optimal working conditions.[...]

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Surface Mining Methods and Equipment

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Opencast Mining - an overview | ScienceDirect Topics

The open pit or open cast mining method is the obvious choice for a property with a wide area of mineralization exposed or existing close to the surface and continuing to greater depths. The open pit exposes the orebody from the surface by separate removal of ore and associated waste rocks.[...]

ASSESSMENT AND MODELLING OF DUST CONCENTRATION …

Dust generation and its dispersion has been the major concern in open cast mines. Major mining activities in deep open pit coal mines range from exploration to the processing of end product that primarily contribute particulate matter (PM), dominantly PM 10 leading to the problem of air pollution and related health hazards.[...]

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OPEN-PIT MINING

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INTRODUCTION TO MINING

mining in systematic openings 2 to 3 ft (0.6 to 0.9 m) in height and more than 30 ft (9m) in depth (Stoces,1954). However,the oldest known underground mine,a hematite mine at Bomvu Ridge,Swaziland(Gregory,1980),is from the Old Stone Age and believed to …[...]

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An Open Pit Design Model - SAIMM

An Open Pit Design Model By R. H. ROBlNSON nod N. B. PRENN SYNOPSIS The model described is a design and economic planning tool for analyzing surface mineral deposHs. Mineralization, topography, costs and significant goologic feature.'! are input to the model. The results are: (i) final p it li mts yielding the aximum 10la1 profil,[...]

A Dynamic-Programming Based Model for Phase-Mining ...

Abstract: A dynamic sequencing method has been developed to simultaneously optimize the coal production rate, waste stripping rate, mining sequence, and mine life of an open-pit coal mine. The method first establishes a geological seam model of a bedded coal deposit which estimates the relevant attributes of coal seams at the center of each ...[...]

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(PDF) A Dynamics Model of Surface Coal Blasting Design Pattern

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