blast design optimization surface and underground

Performance Optimization for Drilling & Blasting Systems ...

It supports innovative drilling patterns, automates ordering of consumables, and rationalizes inventory in surface and underground mines. Real-time surveillance of the blast area and an open channel of communication mitigate occupational hazards and ensure prompt response in the event of an emergency.

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Surface Mine Blasting - Office of Surface Mining

tation with new blast design technology and recent developments in both methods and equipment, for potential improvements in blasting practices. This paper out­ lines surface mine blasting research com­ pleted since the Bureau's last Technology Transfer seminar on blasting in December 1980. Three programmatic areas--produc­

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List of Technical Papers – Mining and Blasting


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Rock Engineering Practice & Design -

to the blasting round design, but there may also be extra rock damage behind the excavation boundary. To minimize damage to the rock a prerock, a pre-split blast (surface excavation) or smooth-wall blast (underground) may be used to create the final excavation surface. Pre-split blast: First a …

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Blast Design and Assessment for Surface Mines and Quarries

The course focuses on drilling and blasting as it is applied in surface mines and quarries. Design methodology for safe and efficient blasting is provided. Monitoring and assessment to improve blast performance and reduce blast vibrations are discussed and examples of optimization programs are provided to illustrate the process.

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Blasting and Explosives Quick Reference Guide 2010

Blast design terminology and formulas Hole length (L) = BH + SD Charge length (C) = L - SL Blast volume (V) = B x S x BH x N Blasted tonnes (T) = V x Density of rock in t/m3 Volume of blasthole (Vb) = π x D2/4000 x L Mass of explosive per hole (kg) = Volume of hole length charged x Explosive density

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Optimization of blasting parameters for an underground ...

Optimization of blasting parameters for an underground mine through prediction of blasting vibration ... Criteria for safety and design of structures subjected to underground blast. ISI Bulletin IS-6922. Google Scholar. Donald, GA, Shahram, T, Keith, A(2013) Ground vibrations produced by surface and near-surface explosions. Applied Acoustics 74 ...

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Blasting - Courses and Live Webcasts - Edumine

Blasting - Courses and Live Webcasts. Online courses, short courses and live webcasts about Blasting for mining and geoscience from Edumine.

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Blast Design Software | Blasting Pattern Software | Blast ...

Blast Design. Generates blast plan and according to the delay pattern structure, simulation. BLAst DESigner Software (BLADES) calculates blast plan parameters, explosives charge distribution, initiation timing and sequence, results in terms of rock breakage and fragment size distribution.

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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.

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EPC Canada

EPC Canada is one of Canada's leading manufacturers of explosives; with a depth of experience and expertise in storage and distribution in the underground mining, construction and surface …

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Chapter 8 BLAST DESIGN - National Park Service

Chapter 8 BLAST DESIGN (Figure 8-2) Staggered pattern (Figure 8-3) Sing (Figure 8-1) Square or rectangular pattern. 114 DELAY PATTERNS Delay patterns, and varying the hole array to fit natural excavation topography, allow for more efficient use of the explosive energy in the blast. Benches may be designed and carried forth with more

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Optimization of drilling and blasting operations in an ...

Tel: +27-798127137; E-mail address: [email protected] Optimization of drilling and blasting operations in an open pit mine—the SOMAIR experience AFENI Thomas Busuyi School of Mining Engineering, Faculty of Engineering and Built Environment, University of the Witwatersrand, Johannesburg, South Africa Abstract: Drilling and blasting play vital ...

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Optimization of Blasting Parameters in opencast Mines

optimization of blasting parameters in opencast mines a thesis submitted in partial fulfillment of the requirements for the degree of bachelor of technology in mining engineering by manmit rout & chinmay kumar parida under the guidance of dr. h. b. sahu department of mining engineering national institute of technology rourkela-769008

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Analysis of damage mechanisms and optimization of cut ...

Analysis of damage mechanisms and optimization of cut blasting design under high in-situ stresses. ... the excavation of rock masses has gradually extended to greater depths. At present, the deepest underground cavern is the China Jinping Underground Laboratory, where the average depth is generally greater than 2000 m, and the maximum depth is ...

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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. ... An unconformity is a surface of erosion or nondeposition, usually the

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A New Perimeter Control Blast Design Concept for ...

A NEW PERIMETER CONTROL BLAST DESIGN CONCEPT FOR UNDERGROUND METAL/NONMETAL DRIFTING APPLICATIONS Stephen R. Iverson, William A. Hustrulid, and Jeffrey C. Johnson DEPARTMENT OF HEALTH AND HUMAN SERVICES Centers for D isease Control and Prevention National Institute for Occupational Safety and Health

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Blast optimization at Kriel Colliery J r n a - UPSpace Home

surface and underground mining methods. The ... Blast optimization at Kriel Colliery ... simulation results, it could be seen that a change of blast design could be beneficial. As an example, smaller drilling patterns were simulated (10 m x 10 m to 8 m x 8 m, and 8 m x 8 m to 7 m x 7 m in

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SHOTPlus™ - Blast design and modelling software for ...

Our SHOTPlus™ range of blast design and modelling software enable users to design, visualise and analyse blast initiation sequences across surface and underground mining, quarry and construction applications. SHOTPlus™ provides you the support and tools that you need to improve your productivity, safety and environmental performance.

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Surface Mine Blast Design and Consultant System - SAIMM

Surface Mine Blast Design and Consultant System D.E. SCHECK, P.K. CHATIERJEE and M.S. WEI SUN Department of industrial Systems and Design Engineering, Ohio University, Athens, Ohio, USA A computer-aided blast design collsultanL system has been developed. The software consists of two modules: one uses theoretical and empirical formulae

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Environmental Blast Management Plan Document Owner Issue Number Date Next Review Date Page Environmental Advisor 00 25/07/2012 25/07/2015 8 of 54 12. The Proponent shall only carry out blasting on site between 9am and 5pm Monday to Saturday inclusive. No blasting is allowed on Sundays, public holidays, or at any other time

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I UNDERGROUND BLASTING - Mining and Blasting – …

UNDERGROUND BLASTING TUNNELING There are two reasons to go underground and excavate: ... blasting is that tunnel blasting is done towards one free surface while bench blasting is done towards two or more free surface. Various drilling patterns have been developed for blasting solid ... Spacing constructions for ing blast design (afterr AECI ...

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Reducing the Cost of Drill and Blast through Blast Design ...

blast patterns have undergone significant pattern expansion of 33% (total influenced area) with no adverse effects on the mining process. The flow on affects of such a significant pattern expansion has led to a number of benefits as detailed below; • Reduction in powder factor by 37% • Reduction in blasting cost per 20m bench by 21%

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BLAST FRAGMENTATION OPTIMIZATION AT TARKWA GOLD MINE USING 6 SIGMA METHODOLOGIES Miss Alexandra Amiel ... Surface mining operations commenced in 1997 and underground operations were ... Block design respected.

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I-Blast Software

New functionalities. For the most versatile and powerful blasting design solution ! Whether you are a mining engineer designing blasts everyday, a manager looking for a better control of blasting operation or a blaster starting out learning how to improve blast design, DNA-Blast Software …

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(PDF) Blasting Design for Tunnels - ResearchGate

Blasting Design for Tunnels. ... It is a kind of feasible research means for studying blasting parameter optimization for increasing lump coal rate. ... Surface and underground explosions make ...

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blast design optimization surface and underground -

Optimization of Blast Fragmentation and Muck Profile. the case of blasting in underground workings, Optimization of blast design in many cases has yielded 15 to 25% saving in explosive consumption Controlled Blasting It has also been possible to undertake, surface blasting vis-a-vis establishment of blast vibration threshold 【More】

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