Access to Deposits as a Stage of Mining Works

Skrzypkowski, Krzysztof; Zagórski, Krzysztof; Zagórska, Anna; Sengani, Fhatuwani

doi:10.3390/en15228740

Cited by 7 publications

(3 citation statements)

References 27 publications

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“…According to Skrzypkowski et al [12], the choice of mine access should primarily consider factors such as the type of access structure (related to rock/deposit composition, length of transport routes, mining method, and volume of excavated materials). Additionally, the authors mention that the increase in natural hazards with mining depth, such as pressure on rock masses and climatic conditions, significantly influences the selection and placement of the access [12].…”

Section: Underground Mine Acess Selectionmentioning

confidence: 99%

Application of Monte Carlo Analytic Hierarchy Process (MAHP) in Underground Mining Access Selection

Cardozo,

Campos,

Petter

et al. 2023

Mining

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This paper presents the application of risk analysis associated with the multicriteria decision method, through the MAHP (Monte Carlo analytic hierarchy process) technique for mining. As an example of application, the problem of choosing an access and transportation route for an underground mine is addressed. A decision can be made based on a technical, economic, and social-environmental approach. As a topic of interest for the modeling of mining projects, this work presents how the technique can qualify the decision-making process, reducing its subjectivity. It is verified that in comparison with the traditional AHP (analytic hierarchy process) method, the risk analysis allows considering the variability of weights and preferences assigned to criteria and options. In the example case, the following options are evaluated: shaft, ramp by diesel or electric truck, and conveyor belt.

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Section: Underground Mine Acess Selectionmentioning

confidence: 99%

Application of Monte Carlo Analytic Hierarchy Process (MAHP) in Underground Mining Access Selection

Cardozo,

Campos,

Petter

et al. 2023

Mining

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“…The article [2] considers the solution of a very urgent problem of effective completion of mineral reserves in quarries, the period of time and operation of which has ended or the operation of which is planned to be completed in the near future due to the extraction of minerals or minerals with unsatisfactory technical parameters. Economic indicators, that is, first of all, the value of the cost of production of 1 ton of minerals or minerals is large.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Justification of the innovative design of the skip winch with a body moved by a counterweight gravity drive

Kaiym,

Chsherbinin,

Kaimov

et al. 2023

EEJET

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The article has to grapple with the problem of creating an economically efficient and environmentally friendly technological process for a development of solid minerals in open-pit mining. In many mining countries of the world today, the depth of many open pits is already 400–600 m or more. At the same time, the cost of transporting 1 ton of rock mass when operating a quarry whose depth is 400 m is 65–70 % of the total cost of extracting 1 ton of minerals. The object of research is technical devices for transport of rock masses in the technological process of development of solid useful deposits in open pit mining. The main reasons are the need to construct transport routes for them by withdrawing the sections of the rock mass on above them, as well their lifting capacity is limited because of they all do use highly energy-intensive machines for transporting rock minerals. In article has been justified a skip cable winch supplied with a wheels moving along on a railroad way by using only a gravitational counterweight device for transporting rock mass from a place of their formation to Earth surface. There have been created a prototype of a planar skip winch with four cables for practical implement in open-pit mining. The theoretical and experimental investigations of the prototype have being confirmed its performance. The created skip winch will accomplish its performancing without using any energy machines even under adverse climate conditions. Its affected would allow to make an open-pit effectiveness to soar and environmentally do friendly because of there are all but excluded any transport vehicles whether on gasoline or diesel oil

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“…The block caving method, renowned in the industry as the "Underground Rock Factory" [1], offers economic benefits comparable to open-pit mining [5,6]. For deposits with low grades and large reserves, block caving is the preferred method of extraction [7].…”

Section: Introductionmentioning

confidence: 99%

Study on the Effect of the Undercut Area on the Movement Law of Overburden Rock Layers in the Block Caving Method

Qin,

Yang,

Liang

et al. 2024

Applied Sciences

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We chose to study the bottom structure stress evolution law in the process of undercut area advancement via the block caving method, reveal the influence law of the undercut rate on the effect of the ore body caving process, and assess the floor stress evolution law in the process of the undercut area with a different undercut rate in order to guide the production of a natural disintegration method under horizontal ground stress and also provide some reference value for rock damage assessment. According to the actual engineering and physical parameters of the mine, a numerical simulation model was created by using finite discrete element software GPI-3D-FDEM, and the Neo–Hookean hyperelastic constitutive model was adopted for calculation purposes. The simulation process follows a backward bottoming approach and monitors and analyses the stress state of the substructure after each bottoming step. The indoor physical model is employed to conduct similar two–dimensional simulation experiments on similar materials, investigating the motion laws of overlying rock layers. The research findings indicate that as bottom blasting progresses, a gradual concentration of compressive stress occurs in the foundation structure ahead of the advancing line. If this stress surpasses the rock mass’s shear failure limit, ground pressure failure may ensue. During mineral extraction from the bottom, internal stress within the fractured fault zone significantly diminishes compared to adjacent rock and ore deposits.

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Access to Deposits as a Stage of Mining Works

Cited by 7 publications

References 27 publications

Application of Monte Carlo Analytic Hierarchy Process (MAHP) in Underground Mining Access Selection

Application of Monte Carlo Analytic Hierarchy Process (MAHP) in Underground Mining Access Selection

Justification of the innovative design of the skip winch with a body moved by a counterweight gravity drive

Study on the Effect of the Undercut Area on the Movement Law of Overburden Rock Layers in the Block Caving Method

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