Evaluation of blast efficiency in aggregate quarries: facts
2021年3月13日· Fragmentation distribution Fragmentation distribution of muckpile has continuously been a priority area to the quarry operators in evaluating the efficiency of a blast It is always their wish that the fragments produced contain little or no boulders that2023年4月1日· Originality This work is the first attempt to quantify the efficiency of blasting operations in the aggregate quarry by combining the fragmentation produced and the(PDF) Blasting efficiency in granite aggregate quarry based on the
ScienceDirect Rock factor prediction in the Kuz–Ram model and
2023年3月1日· In order to use the Kuz–Ram fragmentation model efficiently, the rock factor must be determined correctly One of the aims of this study is to provide an2021年3月1日· While quarry operators may evaluate blast efficiency by counting of boulders, shovel loading rate, visual observation, fragment size distribution, and costEvaluation of blast efficiency in aggregate quarries: facts and
Effect of Type of Explosive and Blast Hole Diameter on
2020年3月17日· Both these explosives cause substantial changes in the breakage mechanism of rockmass thereby affecting the fragmentation This paper reports the2017年8月24日· This research investigated blastinduced fragmentation in three blocks of Pir Ali limestone quarry of Abyek Cement Company using the digital image processingAnalysis of blasted rocks fragmentation using digital
Study on control of rock fragmentation at limestone quarry
2008年8月7日· Keywords fragmentation blasting standard blasting borehole scoping The size distribution of a muck pile depends not on only the blasting standard but also on2020年1月1日· The optimum blasting pattern to excavate a quarry efficiently and economically can be determined based on the minimum production cost which isEvaluation of blast fragmentation and its benefits: a review of the
Blast Vibration and Fragmentation Control at Heavily
2021年2月9日· The amount of energy (or stress) generated by explosives, transmitted through the joints and energy can be passed over the interface resulting in poor2020年7月23日· The burden and spacing values are either 15 m or 2 m for a given blast designThe quarry’s blasting Fragmentation control through effective blast design and its effect onOptimization of Blast Design for Quarries: A case
A method of blasted rock image segmentation based on improved
2022年5月3日· It is of great theoretical significance and practical value to establish a fast and accurate detection method for particle size of rock fragmentation This study introduces the Phansalkar2023年3月1日· In the case of using the Kuz–Ram fragmentation model efficiently, which is one of the most widely used models in the industry, the rock factor A that defines the rock must be determined correctly This study showed that quarry records can be used to determine this parameter, which is not easy to determine due to the complex parametersScienceDirect Rock factor prediction in the Kuz–Ram model and
Evaluation of blast efficiency in aggregate quarries: facts and
2021年3月1日· The proposed approach provides ∼100% effective discrimination between the earthquake cluster in Rocky Mountain House and the quarry explosions in the Keephills mining cluster in western AlbertaFragmentation control through effective blast design and its effect on productivity are the challenging tasks for practicing blasting engineer due to inadequate knowledge of actual explosive Poor fragmentation results in a limestone quarry limestone quarry (diagonal firing linear scale 05 m) (row to row firing square scale 05 mInvestigation of Some Blast Design and Evaluation Parameters for
Optimisation of Drill and Blast Parameters Using Empirical
2016年8月3日· Results of the study, therefore, showed that the company's quarry has limestone of medium strength range of 30Mpa50Mpa which requires a powder factor of between 04kg/m 3 and 06kg/m 3 or 022kg2006年1月1日· A study on fragment size distribution and mining cost was performed on an operating quarry in eastern Pennsylvania The obtained results show that a new drilling/blasting geometry may reduce theImpact of Burden and Spacing on Fragment Size Distribution and Total
Effect of Type of Explosive and Blast Hole Diameter on
2020年3月17日· Both these explosives cause substantial changes in the breakage mechanism of rockmass thereby affecting the fragmentation This paper reports the effect of type of the explosive and blast hole diameter on the boulder count in limestone quarry blasting In all, 264 blasts using ANFO or SME explosives have been conducted2018年10月29日· a size distribution of blasted sandstone quarry was carr ied out using the SplitDesktop image processing software with acquired digital images Image processing of t he data shows that, the meanImage Processing Analysis of Blast Fragmentation: A Case
Academiaedu Impact of Burden and Spacing on Fragment Size
Quarry mining operations consist of a chain of processes, including drilling, blasting, loading, hauling and crushing Drilling and blasting result in fragmentation that can affect downstream processes The resulting oversized and/or undersized fragmentation can determine the value of the final product, the production cost and the energyEffective Fragmentation and Flyrock Control Strategies at Quarries Sedat Esen Esen Mining Consulting, Sydney, Quarry due to the coarse fragmentation complaints at site Figure 8 shows an image from an oversize pile RockEsen 2017 Effective Fragmentation and Flyrock Control
Investigation of Some Blast Design and Evaluation
2010年1月1日· 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 few2011年9月1日· Break it Better – Mine Blast Fragmentation Jack Eloranta of Eloranta & Associates stresses the importance of timing a blast properly “It may take days or weeks to drill out a pattern and loading might take hours or days But, the time span that really matters is the interval from the detonation of one hole to the time the adjacent hole firesBreak it Better Mine Blast Fragmentation International Mining
Managing fragmentation, muckpile shape and flyrock at quarries
PDF | On Dec 1, 2017, Sedat Esen published Managing fragmentation, muckpile shape and flyrock at quarries | Find, read and cite all the research you need on ResearchGate2019年4月1日· Rock fragmentation is a complex dynamic process relating to the interaction between rock mass and explosives For this reason, a mature model has not yet been developed to meet all mining conditions and geological features (Siddiqui et al, 2009)In order to overcome this drawback, the main goal of this paper is to provide a newA new framework for evaluation of rock fragmentation in open
(PDF) OPTIMUM POWDER FACTOR SELECTION IN BLAST HOLES
2020年1月1日· PDF | This study examined the selection of powder factor in blast holes at Dangote limestone quarry, located in Obajana, Kogi State, NorthCentral| Find, read and cite all the research you2023年8月30日· The adoption of the KuzRam model and digital image processing in blasting design can help optimize excavation works and make them costeffective leading to efficient downstream processes This research is based on conventional small diameter blasting performed in a quarry to obtain the desired fragmentation with minimal parative Application of Digital Image Processing and Kuz
A new modification to the KuzRam model using the fragment size
2021年2月1日· The effective fragmentation of rocks is a key factor in the determination of the economic viability of the rock/mineral excavation as the Effects of Specific Charge and Electronic Delay Detonators on Fragmentation in an Aggregate Quarry, Building KCO Design Curves in: Proceedings of 11th Intemational Symposium on Rock2018年6月1日· Nikkhah et al (2022) studied the effective blast design parameters and found that the widthtoheight ratio of the blasting block and the blast hole diameter have the most significant influence(PDF) Optimized design of drilling and blasting ResearchGate
(PDF) Velocity of detonation and fragmentation analysis to
2018年2月1日· Abstract and Figures In holes, the measurement of the velocity of detonation (VOD) helps in comparing and evaluating relative performance of explosives In this paper a blast performance
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Evaluation of blast efficiency in aggregate quarries: facts
2021年3月13日· Fragmentation distribution Fragmentation distribution of muckpile has continuously been a priority area to the quarry operators in evaluating the efficiency of a blast It is always their wish that the fragments produced contain little or no boulders that2023年4月1日· Originality This work is the first attempt to quantify the efficiency of blasting operations in the aggregate quarry by combining the fragmentation produced and the(PDF) Blasting efficiency in granite aggregate quarry based on the
ScienceDirect Rock factor prediction in the Kuz–Ram model and
2023年3月1日· In order to use the Kuz–Ram fragmentation model efficiently, the rock factor must be determined correctly One of the aims of this study is to provide an2021年3月1日· While quarry operators may evaluate blast efficiency by counting of boulders, shovel loading rate, visual observation, fragment size distribution, and costEvaluation of blast efficiency in aggregate quarries: facts and
Effect of Type of Explosive and Blast Hole Diameter on
2020年3月17日· Both these explosives cause substantial changes in the breakage mechanism of rockmass thereby affecting the fragmentation This paper reports the2017年8月24日· This research investigated blastinduced fragmentation in three blocks of Pir Ali limestone quarry of Abyek Cement Company using the digital image processingAnalysis of blasted rocks fragmentation using digital
Study on control of rock fragmentation at limestone quarry
2008年8月7日· Keywords fragmentation blasting standard blasting borehole scoping The size distribution of a muck pile depends not on only the blasting standard but also on2020年1月1日· The optimum blasting pattern to excavate a quarry efficiently and economically can be determined based on the minimum production cost which isEvaluation of blast fragmentation and its benefits: a review of the
Blast Vibration and Fragmentation Control at Heavily
2021年2月9日· The amount of energy (or stress) generated by explosives, transmitted through the joints and energy can be passed over the interface resulting in poor2020年7月23日· The burden and spacing values are either 15 m or 2 m for a given blast designThe quarry’s blasting Fragmentation control through effective blast design and its effect onOptimization of Blast Design for Quarries: A case
A method of blasted rock image segmentation based on improved
2022年5月3日· It is of great theoretical significance and practical value to establish a fast and accurate detection method for particle size of rock fragmentation This study introduces the Phansalkar2023年3月1日· In the case of using the Kuz–Ram fragmentation model efficiently, which is one of the most widely used models in the industry, the rock factor A that defines the rock must be determined correctly This study showed that quarry records can be used to determine this parameter, which is not easy to determine due to the complex parametersScienceDirect Rock factor prediction in the Kuz–Ram model and
Evaluation of blast efficiency in aggregate quarries: facts and
2021年3月1日· The proposed approach provides ∼100% effective discrimination between the earthquake cluster in Rocky Mountain House and the quarry explosions in the Keephills mining cluster in western AlbertaFragmentation control through effective blast design and its effect on productivity are the challenging tasks for practicing blasting engineer due to inadequate knowledge of actual explosive Poor fragmentation results in a limestone quarry limestone quarry (diagonal firing linear scale 05 m) (row to row firing square scale 05 mInvestigation of Some Blast Design and Evaluation Parameters for
Optimisation of Drill and Blast Parameters Using Empirical
2016年8月3日· Results of the study, therefore, showed that the company's quarry has limestone of medium strength range of 30Mpa50Mpa which requires a powder factor of between 04kg/m 3 and 06kg/m 3 or 022kg2006年1月1日· A study on fragment size distribution and mining cost was performed on an operating quarry in eastern Pennsylvania The obtained results show that a new drilling/blasting geometry may reduce theImpact of Burden and Spacing on Fragment Size Distribution and Total
Effect of Type of Explosive and Blast Hole Diameter on
2020年3月17日· Both these explosives cause substantial changes in the breakage mechanism of rockmass thereby affecting the fragmentation This paper reports the effect of type of the explosive and blast hole diameter on the boulder count in limestone quarry blasting In all, 264 blasts using ANFO or SME explosives have been conducted2018年10月29日· a size distribution of blasted sandstone quarry was carr ied out using the SplitDesktop image processing software with acquired digital images Image processing of t he data shows that, the meanImage Processing Analysis of Blast Fragmentation: A Case
Academiaedu Impact of Burden and Spacing on Fragment Size
Quarry mining operations consist of a chain of processes, including drilling, blasting, loading, hauling and crushing Drilling and blasting result in fragmentation that can affect downstream processes The resulting oversized and/or undersized fragmentation can determine the value of the final product, the production cost and the energyEffective Fragmentation and Flyrock Control Strategies at Quarries Sedat Esen Esen Mining Consulting, Sydney, Quarry due to the coarse fragmentation complaints at site Figure 8 shows an image from an oversize pile RockEsen 2017 Effective Fragmentation and Flyrock Control
Investigation of Some Blast Design and Evaluation
2010年1月1日· 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 few2011年9月1日· Break it Better – Mine Blast Fragmentation Jack Eloranta of Eloranta & Associates stresses the importance of timing a blast properly “It may take days or weeks to drill out a pattern and loading might take hours or days But, the time span that really matters is the interval from the detonation of one hole to the time the adjacent hole firesBreak it Better Mine Blast Fragmentation International Mining
Managing fragmentation, muckpile shape and flyrock at quarries
PDF | On Dec 1, 2017, Sedat Esen published Managing fragmentation, muckpile shape and flyrock at quarries | Find, read and cite all the research you need on ResearchGate2019年4月1日· Rock fragmentation is a complex dynamic process relating to the interaction between rock mass and explosives For this reason, a mature model has not yet been developed to meet all mining conditions and geological features (Siddiqui et al, 2009)In order to overcome this drawback, the main goal of this paper is to provide a newA new framework for evaluation of rock fragmentation in open
(PDF) OPTIMUM POWDER FACTOR SELECTION IN BLAST HOLES
2020年1月1日· PDF | This study examined the selection of powder factor in blast holes at Dangote limestone quarry, located in Obajana, Kogi State, NorthCentral| Find, read and cite all the research you2023年8月30日· The adoption of the KuzRam model and digital image processing in blasting design can help optimize excavation works and make them costeffective leading to efficient downstream processes This research is based on conventional small diameter blasting performed in a quarry to obtain the desired fragmentation with minimal parative Application of Digital Image Processing and Kuz
A new modification to the KuzRam model using the fragment size
2021年2月1日· The effective fragmentation of rocks is a key factor in the determination of the economic viability of the rock/mineral excavation as the Effects of Specific Charge and Electronic Delay Detonators on Fragmentation in an Aggregate Quarry, Building KCO Design Curves in: Proceedings of 11th Intemational Symposium on Rock2018年6月1日· Nikkhah et al (2022) studied the effective blast design parameters and found that the widthtoheight ratio of the blasting block and the blast hole diameter have the most significant influence(PDF) Optimized design of drilling and blasting ResearchGate
(PDF) Velocity of detonation and fragmentation analysis to
2018年2月1日· Abstract and Figures In holes, the measurement of the velocity of detonation (VOD) helps in comparing and evaluating relative performance of explosives In this paper a blast performance
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