To fulfill this aim, 112 blast operations were precisely measured and collected in one the limestone mines of Iran. These blast more »... peration data were utilized to construct the artificial neural network (ANN) model to predict the peak particle velocity (PPV). The input parameters used in this study were burden, spacing, maximum charge ...
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More than 100 surface miners are being used in coal and limestone mines of India [7]. The surface miner (Wirtgen make-1900SM) was used for the first time in India in 1994 at a limestone quarry of GACL. This machine proved the ability of excavating and sizing the soft limestone without blasting.
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The present paper highlights some important fragmentation issues experienced in the limestone quarry blast rounds. In light of these major issues, the paper outlines influence of a few important ...
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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 …
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Opencast mining involves drilling and blasting to remo ve topsoil and ... this study designs and conducts 11 different tests with varying mix ratios. ... India. Results on impact of limestone ...
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R. Trivedi, T. Singh, A. Raina, Prediction of blast-induced flyrock in Indian limestone mines using neural networks. J. Rock Mech. Geotech. Eng. 6(5), 447–454 (2014) Google Scholar S. Olofsson, Applied Explosives Technology for Construction and Mining (Applex Publisher, Arla, 1990) Google Scholar
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Rippers can be used for limestone mining as limestone is a 'rippable' sedimentary rock (refer to Sect. 3.1.1) Using rippers in small mines or for a group consisting of more than one mine is economical and productive. Instantaneous blasting or blasting with delay detonators in mines are executed in circuits.
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Some Key Performance Indicators (KPIs) were established to monitor the results. A new blast design method, a more appropriate initiation sequence and some simple, inexpensive and effective solutions were identified and applied. ... Rai, P. and S.S. Baghel, 2004, Investigation of firing patterns on fragmentation in Indian opencast limestone mine ...
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The artificial neural networks (ANNs) model has a better conformity with the real blasting costs in comparison with the other models, and the GEP model exhibits a reliable output. The use of blasting cost (BC) prediction to achieve optimal fragmentation is necessary in order to control the adverse consequences of blasting such as fly rock, ground vibration, …
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Blast design and geotechnical parameters, such as linear charge concentration, burden, stemming length, specic charge, fi uncon ned compressive strength (UCS), and rock …
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Here, R 2 values are ranging from 0.6568 to 0.6991, where Indian model is showing highest R 2 and Ambraseys model is showing lowest R 2. All the ... M., Mehrdanesh, A. et al. Optimization of blasting design in open pit limestone mines with the aim of reducing ground vibration using robust techniques. Geomech. Geophys. Geo …
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190 Investigation of Some Blast Design and Evaluation Parameters for Fragmentation in Limestone Quarries meters and the blasting results is of paramount over sizes (boulders), better is the blast performance. importance to clearly analyze and interpret the data, which, in turn, paves the pathway for improvement of 3.3 Cycle time the blast ...
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2020 •. RANJIT PASWAN. This paper deals with the controlled blasting techniques implemented to control overbreaks, blast induced blast vibration and to aid in the …
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This paper presents a case study of controlled blasting at a limestone mine. In the phase of expansion of cement plant a highly controlled blasting has to be done so no harm and damage occurs to the nearby green structure. MINE LOCATION The mine has a spread of 444.763 ha comprising mainly plain terrain lying outside forest area.
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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 foundation work of belt conveyor …
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been conducted in four limestone mines in India. Out of one hundred and twenty-five (125) blasts, dataset of ... and injuries due to blasting in Indian mines (CSIR- ... of all blast design and ...
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A well-designed blast pattern and the effective execution of the blast plan using high-precision drills are key. Hexagon blast design software incorporates charge and blast design templates that are based on engineering methods proven in mines worldwide. This can help avoid high-wall stability problems, uneven blasting, poor fragmentation ...
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80 and calculate the blast design parameters for the particle size of 75-350 mm. Usman and Muhammad [8] have conducted a PCA-combined analysis on the parameters and data ... of fly rock in Indian limestone mines using ANNs after propagation, and indicated that the amount of charge per hole, depth of holes, burden, spacing,
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Optimization of blasting design in open pit limestone mines with the aim of reducing ground vibration using robust techniques ... and Indian) and machine learning (ANN) methods.
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Optimization of blasting design in open pit limestone mines with the aim of reducing ground vibration using robust techniques. ... Indian 1.001381 69.99199 0.699064 0.900209 87.50964 0.881789.
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ROCK BLASTING FOR MINING. Prof. A. Balasubramanian. Centre for Advanced Studies in Earth Science. University of Mysore. Mysore-6. Objectives: You are all aware that Mining is a major econom ic ...
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Reproduction of this brief note may help the Indian limestone mining industry in a greater way. ... precise blast design parameters were recommended for blasting at distances beyond 200 m from the ...
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Blasting. Article PDF Available. Optimization of blasting design in open pit limestone mines with the aim of reducing ground vibration using robust techniques. June 2020. Geomechanics and...
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Semantic Scholar extracted view of "Prediction of blast-induced flyrock in Indian limestone mines using neural networks" by R. Trivedi et al. Skip to search form Skip to ... Summary Observed flyrock distances for 47 blasts at six limestone quarries along with blast design parameters are presented. The influence of blasthole diameter, …
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The documentation of pertinent blast design para- 190 Investigation of Some Blast Design and Evaluation Parameters for Fragmentation in Limestone Quarries meters and the blasting results is of paramount importance to clearly analyze and interpret the data, which, in turn, paves the pathway for improvement of the blast performance by identifying ...
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E. E. Gomaa. In a limestone quarry mine, fragmentation is a crucial outcome of blasting operations. The optimization of blasting operations greatly benefits from the prediction of …
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ANN has been trained using 95 datasets of experimental blasts conducted in 4 opencast limestone mines in India. Thirty datasets have been used for testing and validation of trained neural network.
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Blast design and geotechnical parameters, such as linear charge concentration, burden, stemming length, specific charge, unconfined compressive strength (UCS), and rock …
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Drilling and blasting are the two most significant operations in open pit mines that play a crucial role in downstream stages. While previous research has focused on …
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Blasting is regarded as a widespread rock fragmentation technique used in mining projects. Most of the blasting energy is squandered in generating unfavorable environmental effects like ground vibration, air-overpressure, flyrock and back-break [1,2,3,4,5,6,7,8].As stated by institute of markers of explosives (IME), flyrock is an …
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