· This puts flyrock into proper perspective and develops a comprehensive regime for flyrock prediction and control. It also addresses the blast danger zone demarcation based on scientific understanding in comparison to the consequence-based approach supported by pertinent case studies.
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The flyrock know-how, the definitions, the causes, and the preventive and control measures of flyrock have been precisely presented. The blast danger zone and risk analysis along with a comprehensive methodology for flyrock prevention and control are briefly provided with an example to devise a site-specific risk matrix.
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REVIEW ARTICLE. Flyrock in surface mine blasting: understanding the basics to develop a. predictive regime. Avtar K. Raina1'*, Y. M. S. R. Murthy2 and Abhay K. Soni1. 'CSIR-Central Institute of Mining and Fuel Research, Regional Centre Unit-I, 3rd Floor, MECL Complex, Seminary Hills, Nagpur 440 006, India department of Mining
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The flyrock know-how, the definitions, the causes, and the preventive and control measures of flyrock have been precisely presented. The blast danger zone and risk analysis along
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VL DE 725Flyrock in surface mining – Limitations of current predictive models and a better alterative through modelling the aerodynamics of flyrock trajectory by T. Szendrei1 and S. Tose2
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Flyrock prediction and control in surface mine blasting. Proceedings of the ISEE 20th Annual Conference of Explosives and Blasting Technique, Austin, TX, 30 January-3 February 1994. International Society of Explosives Engineers, Cleveland, OH. pp. 59-74.
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· Nitric oxide (NO) and nitrogen dioxide (NO 2) are produced by large surface blasts in which the explosive does not detonate properly. NO released by the detonation oxidizes to NO 2 as the fumes mix with the atmosphere. Excessive NO 2 production is apparent as an orange cloud that forms above the blasting site. NO 2 is extremely toxic.
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Flyrock in Surface Mining: Origin, Prediction, and Control-Ebook written by Autar K. Raina. Read this book using Google Play Books app on your PC, android, iOS devices. Download for offline reading, highlight, bookmark or take notes while you read Flyrock in
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Tzamos and Sofianos (2006) used fuzzy approach for extending the Q system. In this study, a fuzzy model was developed to predict flyrock in the Gol-E-Gohar iron mine of Iran. For validation of the proposed fuzzy
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· Personnel Safety: Flyrock can pose a significant risk towards the health and safety of employees or persons within the vicinity of the mine (Van der Walt, 2019). The high velocity and unpredictable trajectory of flyrock fragments can cause serious injuries or fatalities if individuals are struck by them.
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· Prediction of flyrock distance has a remarkable role in reduction and control of blasting accident in surface mines. In this paper, at first a new empirical equation for predicting flyrock
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· Flyrock in Surface Mining: Origin, Prediction, and Control 248 by Autar K. Raina Add to Wishlist Flyrock in Surface Mining: Origin, Prediction, and Control 248 by Autar K. Raina Hardcover $120.00 Hardcover $120.00 Learn more
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· A sufficient database of measured flyrock ranges produced by blasting at a particular site can be used to determine the probability that flyrock will exceed any prescribed range. Such a probabilistic analysis is given for data from 6 sites (surface mines and quarries). A flyrock model based on two-dimensional (2D) ballistics, incorporating
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· Flyrock is one of the contentious issues in surface blasting. The phenomenon of flyrock is important since it involves risk to people and structures (Objects of concern; Fig. 3) within and outside the mining area.
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Flyrock in Surface Mining: Origin, Prediction, and Control-Ebook written by Autar K. Raina. Read this book using Google Play Books app on your PC, android, iOS devices.
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department of Mining Engineering, Indian School of Mines, Dhanbad 826 004, India Flyrock is one of the most contentious issues in bench blasting. Unlike ground
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· This paper presents the results of the research study on flyrock phenomena and blast area security related accidents in surface mining. The study revealed that a total of 45 fatal and 367 non-fatal accidents in coal, metal and non-metal surface mines had occurred between 1978 and 1998 where the primary causes were the
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· To control flyrock distance in open-pit mines, blast design parameters, also known as controllable parameters, have been suggested. Development of a fuzzy model to predict flyrock in surface mining Saf. Sci., 49
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· The MSHHO–SVR model can be considered as a novel hybrid model that effectively addresses flyrock-like problems caused by blasting, and was the most critical parameter for predicting FD. To weaken and control effectively the harm of flyrock in open-pit mines, this study aimed to develop a novel Harris hawks optimization with multi
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· Such control causes flyrock to be limited, hence significantly reducing the risk of damage. This paper serves two main objectives: risk assessment and prediction of flyrock. For these objectives
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· A novel classification approach was proposed for prediction of flyrock throw distance based on the site measurements performed in a sandstone quarry. The classification approach was created by using multiple discriminant analysis (MDA) technique. The input parameters of discriminant analysis are blast design parameters
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· Such a probabilistic analysis is given for data from 6 sites (surface mines and quarries). A flyrock model based on two-dimensional (2D) ballistics, incorporating the site-specific blast designs, is also used to predict a set of flyrock ranges for each site. It is shown that the exceedence probabilities of the modelled ranges are consistent
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· Flyrock in Surface Mining: Origin, Prediction, and Control-Kindle edition by Raina, Autar K.. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and
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Flyrock from surface blasting operations has caused serious injury and death to employees and other persons. Injuries due to flyrock and the lack of blast area security accounted for over two-thirds of all blasting-related injuries in surface coal, metal, and nonmetal mines during the period 1978-2002.
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· Blasting is the predominant rock fragmentation technique in civil constructions, underground and surface mines. Flyrock is the unwanted throw of rock fragments during blasting and is the major cause of considerable damage in and around the mines. The present research aimed to propose a new intelligence-based method to
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Flyrock in surface mining Part II —. es, sources, and mechanisms of rock projectionby T. Szendrei1 and S. Tose2SynopsisThe fracturing and movement of rock that occurs in the vicinity of a stemmed borehole charge in open pit mining operations are described by examining the efects of the emitted stress waves .
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· This puts flyrock into proper perspective and develops a comprehensive regime for flyrock prediction and control. It also addresses the blast danger zone demarcation based on scientific understanding in comparison to the consequence-based
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: 1st EditionPresents comprehensive and critical review of the flyrock phenomenon. Reviews prediction and control mechanisms in vogue with scientific
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: Autar K. Raina · Nitric oxide (NO) and nitrogen dioxide (NO 2) are produced by large surface blasts in which the explosive does not detonate properly. NO released by the detonation oxidizes to NO 2 as the fumes mix with the atmosphere. Excessive NO 2 production is apparent as an orange cloud that forms above the blasting site. NO 2 is extremely toxic.
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: 1• Discusses exclusive material on fyrock in surface mining. • Presents comprehensive and critical review of the fyrock phenomenon. • Reviews prediction and control mechanisms
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