optimization of blasting design at granite quarry

optimization of blasting design at granite quarry

Optimization of Blast Design for Quarries -A Case Study of ...

2.4 Optimization of the Quarry Blasting Parameters 2.4.1Optimization Methodology The parameters were obtained using the Swedish technique developed by Langefors and Kilhstrom (1978). Here, the geometric design of the blasting pattern and the calculation of the charges are based on the uniaxial compressive strength of the rock.

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optimization of blasting design at granite quarry

optimization of blasting design at granite quarry. optimization of blasting design at granite quarry Quarry optimisation good fragmentation less fines Different blast designs implemented Original blast design used throughout the entire quarry was: - Hole diameter: 113 mm(4 1/3”) - Burden x Spacing: 3.5 m x 4 m ( 11,5 x 13,3 ) - Stemming: 2 m (6.6 ) - Bottom charge: 11 kg (22 lb) of ...

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optimization of blasting design at granite quarry

optimization of blasting design at granite quarry Laboratory experiment of stemming impact on rock Each specimen from groups A, B and D (in Table 1) with a low specific charge was put inside a steel tube (excluding group D), and both the specimen and the tube were placed on a cubic granite block from the same quarry during blasting.

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Optimization of Blasting Parameters Using Regression ...

the optimum blasting result using the regression model generated using indices such as oversize generation and geometric volume of blast fit on blast design parameters. Description of the Study Areas . The study areas are located at Ibadan, Oyo state. Two quarries namely NSCE quarry and Ratcon quarry were used for this research.

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Optimization of Blasting Parameters Using Regression ...

This research examines optimization of blasting parameters for economic production of granite aggregates in Ratcon and NSCE quarries located atIbadan,OyoState. Samples were collected from the study areas for the determination of rock density and porosity. Schmidt hammer was used for in situ determination of rock hardness. Uniaxial compressive strength of in situ rock was estimated from the ...

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optimization of blasting design at granite quarry

optimization of blasting design at granite quarry Laboratory experiment of stemming impact on rock Each specimen from groups A, B and D (in Table 1) with a low specific charge was put inside a steel tube (excluding group D), and both the specimen and the tube were placed on a cubic granite block from the same quarry during blasting.

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Optimization of Blasting Parameters Using Regression ...

This research examines optimization of blasting parameters for economic production of granite aggregates in Ratcon and NSCE quarries located atIbadan,OyoState. Samples were collected from the study areas for the determination of rock density and porosity. Schmidt hammer was used for in situ determination of rock hardness. Uniaxial compressive strength of in situ rock was estimated from the ...

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optimization of blasting design at granite quarry

Fragmentation Analysis Proceedings of ISERME 2018. Blast optimization can be carried out either with blast pattern expansion ISERME 2018 4 or frag mentation adjustment If planning blast design at this granite quarry 32 Limestone Quarry Thailand The aggregate quarry under this study had an annual production capacity of

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Optimization Of Blasting Design At Granite Quarry

Optimization Of Blasting Design At Granite Quarry. Information regarding drilling and blasting parameter as collected from Zibo quarry for optimization is shown in Table 5 As presented Table 5 the blasting pattern adopted at the quarry has specific charge that ranges between 0625 0750 kgm3 Table 5 Blast Design Pattern Adopted at ZIBO Quarry Diameter mm Depth of hole m.

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Optimization of granite splitting by blasting using ...

DOI: 10.1080/13855140009408059 Corpus ID: 128539922. Optimization of granite splitting by blasting using notched holes @article{Sanchidrin2000OptimizationOG, title={Optimization of granite splitting by blasting using notched holes}, author={J. Sanchidri{\'a}n and P. Garc{\'i}a-Bermudez and C. L. Jimeno}, journal={Fragblast}, year={2000}, volume={4}, pages={1-11} }

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Designing Blast Patterns Using Empirical Formulas

includ~d steps in planning a blast design and generalized blast patterns should be of help to the quarry operator. Design changes are recommended for those q~arries where problems are occurring. INTRODUCTION The Bureau of Mines has been conducting field studies of explosive blast­ ing in rock for a number of years.

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Technical Papers - International Society of Explosives ...

Jan 17, 2014  Multi Step Optimization of a Southeastern Granite Quarry. Multi step process to improve the drilling and blasting process at a granite quarry in the southeast. The paper will cover fines reduction, photogrammetry, quality control, cost improvement and angle hole drilling. On the Performance of Blasting Seismographs

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Fragmentation Analysis Proceedings of ISERME 2018 UAV ...

Blast optimization can be carried out either with blast pattern expansion . ISERME 2018 4 or frag mentation adjustment. If ... planning blast design at this granite quarry.. 3.2 Limestone Quarry, Thailand The aggregate quarry under this study had an annual production capacity of

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optimisation of limestone production - BINQ Mining

Dec 20, 2012  optimization of blasting design at granite quarry. This page is provide professional optimization of blasting design at granite quarry information equipment for quarrying limestone; grinding limestone production line; »More detailed

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blast pattern – Mining and Blasting

Oct 12, 2012  2. Contemplation of Blast Design: Blast designing is not a science, but knowledge, experience, studying and analyzing past practices in relation to rock strata geology etc., makes blaster to achieve perfection. Thus, for a blaster, valuable tool is the file of blast reports that he builds as he gains experience. Not only do these provide evidence of the quality of his work, but they also ...

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Prediction of ground vibration due to quarry blasting ...

Prediction of ground vibration due to quarry blasting based ... ations conducted in a granite quarry, Malaysia. To achieve this aim, a total number of 102 blasting operations were ... other input parameters related to blasting design, rock mass properties, and explosive material were utilized for ground vibration prediction (e.g., Singh and ...

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Blasting and Fragmentation Journal - International Society ...

Two tri-axial accelerometer stations, consisting of high frequency and high-amplitude (20 kHz, 100g) sensors, located within ~100m of the blast, but at two different bench levels, were used to monitor production blasts in a limestone quarry. The production blast consisted of double-decked explosive loads in 125 mm (5 in) diameter holes, with an ...

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Ground vibration prediction in quarry blasting through an ...

Sep 04, 2014  Blasting quarry operation in the vicinity of residential areas may cause critical environmental issues. Environmental problems such as flyrock, air overpressure, ground vibration, and dust and fumes may happen by blasting works due to several causes such as extra explosives, blasting design, the distance between the blast-face and monitoring point, geological discontinuities, and blasting ...

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optimization of fragmentation in stone quarry

Posts Related to rock blasting quarry engineer » granite quarry blasting costs » german manufacturing companies high performance portable abrasive Stone Crushers. ... optimization of blast design for quarries. Posted at June 21 Blast design in monumental stone quarries. Distance optimization .

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Designing Blast Patterns Using Empirical Formulas

includ~d steps in planning a blast design and generalized blast patterns should be of help to the quarry operator. Design changes are recommended for those q~arries where problems are occurring. INTRODUCTION The Bureau of Mines has been conducting field studies of explosive blast­ ing in rock for a number of years.

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alternative for granite quarry blasting

best quarry rock blasting designs in malaysia malaysian quarry blasting video optimization of blasting design at granite quarry Blasting in... Know More yamama granite and marble company quarry

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Fragmentation Analysis Proceedings of ISERME 2018 UAV ...

Blast optimization can be carried out either with blast pattern expansion . ISERME 2018 4 or frag mentation adjustment. If ... planning blast design at this granite quarry.. 3.2 Limestone Quarry, Thailand The aggregate quarry under this study had an annual production capacity of

Read More
Technical Papers - International Society of Explosives ...

Jan 17, 2014  Multi Step Optimization of a Southeastern Granite Quarry. Multi step process to improve the drilling and blasting process at a granite quarry in the southeast. The paper will cover fines reduction, photogrammetry, quality control, cost improvement and angle hole drilling. On the Performance of Blasting Seismographs

Read More
optimisation of limestone production - BINQ Mining

Dec 20, 2012  optimization of blasting design at granite quarry. This page is provide professional optimization of blasting design at granite quarry information equipment for quarrying limestone; grinding limestone production line; »More detailed

Read More
Prediction of ground vibration due to quarry blasting ...

Prediction of ground vibration due to quarry blasting based ... ations conducted in a granite quarry, Malaysia. To achieve this aim, a total number of 102 blasting operations were ... other input parameters related to blasting design, rock mass properties, and explosive material were utilized for ground vibration prediction (e.g., Singh and ...

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Quarry Academy 2005 DynoConsult Blast Management

Quarry Academy 2005 Blast Management Best Practice starting points for basic Blast Design Quarrying Units Rules of Thumb Best practices Burden (B) ft (range 25 to 35) x D e /12 ([P e x 2 / P r]+1.8) x D e Spacing (S) ft (range 1 to 1.8) x B 1.15 x B

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Ground vibration prediction in quarry blasting through an ...

Sep 04, 2014  Blasting quarry operation in the vicinity of residential areas may cause critical environmental issues. Environmental problems such as flyrock, air overpressure, ground vibration, and dust and fumes may happen by blasting works due to several causes such as extra explosives, blasting design, the distance between the blast-face and monitoring point, geological discontinuities, and blasting ...

Read More
blast pattern – Mining and Blasting

Oct 12, 2012  2. Contemplation of Blast Design: Blast designing is not a science, but knowledge, experience, studying and analyzing past practices in relation to rock strata geology etc., makes blaster to achieve perfection. Thus, for a blaster, valuable tool is the file of blast reports that he builds as he gains experience. Not only do these provide evidence of the quality of his work, but they also ...

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Quarrying of Stones: Its Methods, Selection of Site ...

Quarrying by blasting involves a series of systematic operations such as drilling of blast-holes, charging of blast-holes and firing the shots. (1) Drilling of blast-holes: A blast-hole is a hole of suitable diameter and depth driven at a properly selected location on a rock for being charged with an explosive.

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Quarry

In July of 2016, at a granite quarry in the Southeast United States, current drill patterns were a 13x13 with 3’ of subdrill using a 5.75” blast hole. The average pounds per hole was 598. The seismograph, measuring vibration, is located within 700ft from the blast. SHA (Signature Hole Analysis) was being utilized to delay shots.

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Construction Planning, Equipment, CHAPTER BLASTING

for final blast design. 18 CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf Slide No ... relief at the time a blasthole detonates. It is normally the distance to the free face in an excavation, whether a quarry situation or a highway cut. CHAPTER 13. BLASTING ROCK ENCE 420 ©Assakkaf ... Granite 2.6 – 2.9 2.19 – 2.28 Gypsum 2.3 – 2.8 1.94 ...

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The effects of short delay times on rock fragmentation in ...

on the same bench blast, the effects of timing on fragmentation were determined. This analysis provides a representative understanding of timing effects on fragmentation in the field, different from previous blast models which either negate the effects of timing or geology. Four test blasts were conducted at a granite quarry in Talbotton, GA.

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optimization of fragmentation in stone quarry

Posts Related to rock blasting quarry engineer » granite quarry blasting costs » german manufacturing companies high performance portable abrasive Stone Crushers. ... optimization of blast design for quarries. Posted at June 21 Blast design in monumental stone quarries. Distance optimization .

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