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Open pit mining equipment used include 930E trucks, 7495 and P&H 4100 XPC shovels, PC5500 hydraulic excavators.
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1.. IntroductionDrilling and blasting are the most widely adopted excavation techniques for mining and civil engineering. Rock blasting results in ground shock and vibration which may cause damage to the surrounding structures such as buildings, bridges, dams, tunnels, etc., therefore, blast-induced ground shocks and their propagation in …
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These control blasting techniques can be apply in any of the large open pit mines to reuse the impact Some of the important method are presplitting & line drilling which can be efficiently use in Indian context. We have seen that in some of the mining area the practice of muffle blasting are done which help to reduce the impact but other method ...
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The prediction of particulate matter (PM) concentration around open-pit mining is crucial for its control. To achieve this, machine learning (ML) techniques have been attempted in PM estimation without reaching their full potential. In the ...
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Rock blasting is one of the most common and cost-ecient rock excavation techniques in mining and civil ng i nreneegi s t ce opj r 3,4. Rock blasting is a prominent mining technique for metal and ...
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Blasting is accompanied by a number of side effects that have a negative impact on the environment, such as ground vibration, flyrock, AOp, and backbreaks [33, 42].These effects are more severe if they are carried out in close proximity to residential buildings, factories, offices or if they are improperly designed [].Proper designing of a …
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In open-pit mining, the commonly used blasting methods are as follows: Classification by blasting method: shallow hole blasting, medium and deep hole blasting, chamber blasting, multi-row hole differential blasting, multi-row hole differential extrusion blasting, pot blasting, external application blasting, hole by hole blasting technology.
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Bowa introduced a practical method in an open pit mine to optimize blasting design parameters such as bench height, drill hole diameter, spacing, etc. [5]. Tosun …
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Blasting prediction and parameter optimization can effectively improve blasting effectiveness and control production energy consumption. However, the presence of multiple factors and diverse effects in open-pit blasting increases the difficulty of effective prediction and optimization. Therefore, this study takes blasting fragmentation …
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Open-cut mining is a process of resource extraction where it is dug up from the surface. Also known as open-pit mining or open-cast mining, it is the most common form of extraction for minerals or coal in Australia. The technique of open-cut mining is used when the deposits are close enough to the surface to be readily extracted.
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Blasting prediction and optimization are essential means for achieving controlled blasting and low-cost production in open-pit mines. Reliable prediction and …
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As the key technology of high-step stripping and blasting engineering, throwing blasting will be the development trend of the production optimization and …
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cient is between 3 and 6, and there is a clayey zone in the bauxite mining area, it is necessary to carry out blasting work before mining. This article mainly analyzes and optimizes the blasting practice of the Sangaredi open pit bauxite mine. The subject was finally extended to the reduction of nuisances due to
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Advanced blasting technology can be used for deep hole blasting. Such as differential blasting, extrusion blasting, and throw blasting and directional blasting that can be …
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This research proposes a new dust reduction method based on water infusion blasting in order to effectively minimize the dust production during blasting in open-pit mines. The proposed method was applied at the Haerwusu open-pit coal mine, China. A high-speed camera was used to record the dynamic process of dust generation …
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In this paper, a new framework was proposed to predict fragmentation size distribution caused by blasting operation in open pit mining. The proposed framework …
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Backbreak is an undesirable phenomenon in blasting operations. It can cause instability of mine walls, falling down of machinery, improper fragmentation, reduced efficiency of drilling, etc. The existence of various effective parameters and their unknown relationships are the main reasons for inaccuracy of the empirical models. Presently, the …
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Goshtasbi et al. [6] have suggested some modifications in the slope of an open-pit of the Jajarm bauxite mine wall based on the genetic algorithm. It can be seen that soft computing is applied ...
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Received 23 February 2009; accepted 15 May 2009 Corresponding author. Tel: +27-798127137; E-mail address: [email protected] Optimization of drilling and blasting operations in an open pit mine—the SOMAIR experience AFENI Thomas Busuyi School of Mining Engineering, Faculty of Engineering and Built Environment, University …
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DOI: 10.1016/J.IJMST.2018.06.009 Corpus ID: 115291846; Optimized design of drilling and blasting operations in open pit mines under technical and economic uncertainties by system dynamic modelling
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With the approach, the most important parameters affecting the drilling and blasting operations in a blast block in open pit mines will be identified and investigated, in order to minimize the ...
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The drill and blast technique is the most common method of mining in open-pit mines. It is often used when a deposit can be accessed from the surface. The process uses a drilling rig to create a series of drill holes before explosives are detonated in these holes to break the rock into small pieces that are removed during the blasting …
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The case study is a now exhausted medium sized open pit gold and silver mine, which processed about 10,800 tons of material grading about 1g/t Au and between 4 g/t to 6 g/t Ag ore daily. The mine worked on 5m benches, and blast holes were used for breakage and to obtain samples from the pit. Blast holes are spaced about 4.5 m. and are sampled over
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Introduction. Drilling and blasting are the most widely adopted excavation techniques for mining and civil engineering. Rock blasting results in ground shock and vibration which may cause damage to the surrounding structures such as buildings, bridges, dams, tunnels, etc., therefore, blast-induced ground shocks and their propagation in …
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In addition, bauxite mining poses pressure on the use of land, since red mud depositories (the bauxite residue after smelting) for wet and dry storage and open pit mines occupy vast areas and, if ...
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Blasting is a process of breaking the rock mass to excavate the ore and materials. Many open blasting operations are faced with the apparently conflicting requirements of providing large quantities of fragmented rock and of minimizing the amount of damage inflicted upon the surrounding slopes.
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The primary goal of blasting in open pit mines is to produce optimally fragmented feed for crushers from in situ rocks. The muck pile size distribution …
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An attempt has been made to examine the impact of blast vibration, joint frequency and relative joint orientation to the pre-split blasting at Rampura-Agucha Pb-Zn open pit mine of Hindustan Zinc ...
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Bauxite is generally extracted by open cast mining, being almost always found near the surface, with processes that vary slightly depending on the location. ... The bauxite layer beneath the overburden is broken up using methods such a blasting, drilling and ripping with very large bulldozers. Once the bauxite is loosened into manageable pieces ...
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