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Wyszukujesz frazę "mining method" wg kryterium: Temat


Wyświetlanie 1-3 z 3
Tytuł:
Selection mining methods via multiple criteria decision analysis using TOPSIS and modification of the UBC method
Autorzy:
Ali, Mahrous A.M.
Kim, Jong-Gwan
Powiązania:
https://bibliotekanauki.pl/articles/1839056.pdf
Data publikacji:
2021
Wydawca:
Główny Instytut Górnictwa
Tematy:
TOPSIS
UBC method
mining method selection
multiple criteria decision making
metoda UBC
wybór metod wydobycia
wielokryterialne podejmowanie decyzji
Opis:
Mine designers often face difficulties in selecting an appropriate mining method; however, such a method should be selected based on ore and rock characteristics. The selection of mining methods can be considered a type of multi-criteria decision making, and this depends on many factors used in the selection process. The general method used in this field is the University of British Columbia (UBC) method, which determines the criteria of the properties that are compared to determine the best and worst of several mining methods. In this paper we used as new technique which defines as Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS). The criteria considered in the UBC method include general shape, ore thickness, ore plunge, and grade distribution, beside the rock quality designation (RQD), and the rock substance strength (RSS). This paper presents an improved TOPSIS method based on experimental design. Additionally, this paper will introduce a modified version of the UBC method that can be employed based on Excel sheet. The best mining methods is cut and fill stoping and top slicing with the same rank equal 0.72, and the second-best mining method is square set stoping with rank equal 0.65.
Źródło:
Journal of Sustainable Mining; 2021, 20, 2; 49-55
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Use of InSAR in Linear Discontinuous Ground Deformation Generation analysis: case study of a mine in Poland
Autorzy:
Apanowicz, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/2201378.pdf
Data publikacji:
2022
Wydawca:
Główny Instytut Górnictwa
Tematy:
underground mining
subsidence
horizontal strain
Knothe-Budryk theory
satellite interferometry
SBAS method
górnictwo podziemne
osiadanie
odkształcenie poziome
teoria Knothego-Budryka
interferometria satelitarna
metoda SBAS
Opis:
Linear Discontinuous Ground Deformations are defined as fissures and steps, as well as structural forms composed of them. They occur on the surface as a result of underground mining. Knowledge of LDGDs has been acquired through field observations which are subsequently described in the scientific publication. Records of LDGDs are made by using the classic surveying method. The paper reviews the created LDGDs in the years 2015-2019 in one of the mines of the USCB. The analysis covers the velocity of subsidence as a result of underground mining and the values of horizontal strains determined according to the Knothe-Budryk theory. The InSAR satellite technique was used to measure the subsidence. The subsidence was determined using the small baseline method - SBAS. The combination of the theoretical Knothe-Budryk model with the large-scale capabilities of InSAR may provide valuable material for a better understanding of the genesis of LDGD creation and their prediction.
Źródło:
Journal of Sustainable Mining; 2022, 21, 1; 45--53
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical modeling of transport roads in open pit mines
Autorzy:
Nurić, Adila
Nurić, Samir
Powiązania:
https://bibliotekanauki.pl/articles/91946.pdf
Data publikacji:
2019
Wydawca:
Główny Instytut Górnictwa
Tematy:
numerical modeling
computer simulation
transport/haul roads
open-pit mining
construction
finite element method
modelowanie numeryczne
symulacja komputerowa
górnictwo odkrywkowe
budowa
metoda elementów skończonych
Opis:
Transport of overburden and mineral raw materials in surface mining is one of the most complex and costly processes today. Good transport roads are essential for successful transportation by trucks in open pit mines. Poor design, and maintenance of the roads has the greatest impact on the high transport costs and possible risks in terms of security. Numerical modeling was performed to analyze the effects of the properties of the built-in materials used in the construction of roads, the thickness of the layers and the interaction of tires with the road surface. The distribution of stress and strain determined in the construction of a road depends on the characteristics of the road and the structure and mass of the truck. For this reason, numerical modeling and computer simulation is considered a very suitable method in the design of roads, because in a short period of time and at a lower cost calculations for the construction of a large number of models can be implemented and the best model available will be chosen. The most favorable construction will be considered to be the one that will, at minimum construction costs and with low costs of maintenance, enable the efficient use of transport equipment for a longer period of exploitation.
Źródło:
Journal of Sustainable Mining; 2019, 18, 1; 25-30
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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