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The mining process involves several sequential stages, including drilling, blasting, loading, transportation, and mineral processing. Among these stages, blasting costs (BC) exhibit greater sensitivity compared to others. Inadequate blasting practices can lead to additional drilling, increased explosive consumption, and environmental consequences such as ground …
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In this paper, an attempt has been made to apply various models to predict ground vibrations due to mine blasting. To fulfill this aim, 112 blast operations were precisely measured and collected ...
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In quarries and mines, the drilling and the blasting activities is an essentially fundamental way of excavating rock. The blasting process is an integral and important part of mining operations ...
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Limestone Mining - Download as a PDF or view online for free. ... As per MCDR reports, drilling is done by Jack hammer & Wagon drill and blasting is done byANFO, Slurry explosives, emulsion explosives etc. 8. Uses of limestone The principal use of limestone is in the Cement Industry. Other important uses are in: 1. Manufacture of quicklime ...
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Smooth blasting in limestone mine is a practical approach for damping of kinematic energy and decreasing its damage effects. Therefore, in this paper, smooth blasting in limestone was studied to determine the influence of hole configurations and confining pressure on the released kinematic energy. This study introduces a novel approach by ...
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A limestone mine. Photo: Miami-Dade Limestone Products Association. Gov. Ron DeSantis made blasting more frequent when he fast-tracked road construction projects during the COVID-19 pandemic. The …
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The mining area lies between longitude E 80° 51′ 56′′ to E 80° 55′ 28′′ and latitude N 24° 37′ 9′′ to N 24° 40′ 5′′ and forms a part of Survey of India Toposheet no. 63 D/14 (Fig. 1). The limestone deposit of the area belongs to the Bhander Group of Upper Vindhyan System of the Vindhyan Supergroup.
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Rock blasting is one of the most common and cost-efficient rock excavation techniques in mining and civil engineering projects 3,4.Rock blasting is a prominent mining technique for metal and non ...
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Blasting in smaller operations may be done with dynamite, but in most medium-to large-size operations, ammonium nitrate fuel oil mixture (AN-FO) is used as a low cost explosive. The …
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This paper presents a case study of limestone mine where a controlled blasting was conducted near a green structure of wagon tippler (at 2 m) being constructed for …
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Controlled blasting in a limestone mine using electronic detonators: A case study Article 25 January 2017. Safety Concerns of Ancient Temple due to Blasting in Adjacent Mines ... Mel'nikov, N.V., et al.: A method of enhanced rock breaking by blasting. Soviet Mining Sci. 15(6), 565–572 (1979) ...
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During the planning phase, mining professionals must determine blast hole pattern and detonation sequence. Both are optimized to break the rock efficiently and to minimize ground vibration …
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Figure 1 shows a blasting round view with Figure 2 showing the close-up view of blasted limestone at Shree Cement Ras Limestone Mine in India. As a part of this study, for the establishment of the various models described therein, a total of 101 sets of data were collected from the Ras limestone mine.
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In an effort to meet their production needs, they carry out their own limestone mining. Blasting is chosen to dismantle the limestone mass. However, blasting also has a negative impact due to the release of large amounts of energy that can damage building structures or interfere with human comfort. Based on the AMDAL's location close to ...
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The majority of blasting in today's environment is in non-homogeneous material where rock types and structure are constantly changing, either from site to site or within the boundaries of a single site. ... no such range exists for rock types such as limestone, sandstones, granites and others. ... a longtime professor of mining engineering at ...
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In a limestone quarry mine, fragmentation is a crucial outcome of blasting operations. The optimization of blasting operations greatly benefits from the prediction of rock fragmentation.
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The optimization of blasting operations greatly benefits from the prediction of rock fragmentation. The main factors that affect fragmentation are rock mass characteristics, blast geometry, and explosive properties. This paper is a step towards the implementation of machine learning and deep learning algorithms for predicting the extent of fragmentation (in …
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Blast vibration is one of the most crucial nuisances of blasting, which should be accurately estimated to minimize its effect. In this paper, an attempt has been made to apply …
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In mining operations, blasting has become a routine work. With proper understanding of the rocks and blasting methods, the mining work can be done effectively. The basic objective of this...
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Blasting in smaller operations may be done with dynamite, but in most medium-to large-size operations, ammonium nitrate fuel oil mixture (AN-FO) is used as a low cost explosive. The rock is then extracted using power shovels or bulldozers. Underground Mining Underground operations are becoming more common, especially for limestone mining in
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Different limestone mines in India show different nature of jointing in their rock strata. Accordingly, the blasting outputs from three different limestone mines, viz. Rawan limestone mine, Sagmania and Birhauli limestone mine and Injepalli limestone mine, have been compared along with their blast design parameters and the nature of joint.
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International Journal of Mining Engineering and Mineral Processing, 2022. The primary purpose of blasting is to fragment rock, and there are significant rewards for delivering a fragmentation size range that is not only well suited to the mining system it feeds, but also minimizes unsaleable fractions and enhances the value of what can be sold.
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In spite of introduction of new technologies for breaking rock, blasting has remained most popular methodology for breaking rock for surface mining, tunnels, and civil engineering …
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Fully mechanized opencast mining has been adopted by the Tular Limestone Mine of Madras Cement Works in Tamil Nadu, India. Excavators are used to remove the topsoil and surface miners were used to mine limestone. As no drilling and blasting are involved, there is a reduction in air pollution and high noise generation.
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The blasting practices in a limestone quarry with karstic cavities have been presented. The existence of karstic cavities in the quarry has reduced blasting efficiency significantly.
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the Changjiu Shenshan limestone mining area, a total of four sets of blasting tests were conducted in the 1# and 2# mining areas. Specifically, three sets of blasting tests were carried out in the 1# mining area, while one set of blasting test was conducted in the 2# mining area. The location of each test set is illustrated in Figure 2.
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Underground Limestone Mining by Robert M. McKay and Michael J. Bounk The production of limestone aggregate from underground ... holes and load explosives for blasting the rock. River Products Company, Columbus Junction Mine. Photo by Bob McKay and Mike Bounk. Each year aggregate companies in Iowa produce about 35 million tons of raw material
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Under well-controlled conditions, Ouchterlony et al. [] assessed energy partitioning of limestone production blasts and computed in-hole losses, seismic energy, the kinetic energy of throw, and fragmentation energy.Their search revealed the energy partitioning of a blast with bulk emulsion explosive would be []Crushing and other losses in the rock mass; 20–40%
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Thus, improving mining sustainability requires assessing mine slope stability using the effect of scaled distance and explosive quantity on blasting-induced ground vibration in small mines.
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A project team of six SCG senior mining engineers was tasked in 2012 to find a mining method to mine 2.4 million ton of limestone annually, without requiring a blasting permit.
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