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.Get Price
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--producGet Price
* AN ANOTHER WAY FOR OPEN PIT MINE DESIGN OPTIMIZATION – FLOATING SLOPES METHOD * METHOD TO REDUCE A PILED ROCK RESISTANCE TO PENETRATION * Coal Mining and Production * INDIAN MINING & CONSTRUCTION EQUIPMENT INDUSTRY ... * Simpson – Effects of Surface Mine Blasting on Underground Mine OpeningsGet Price
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 …Get Price
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.Get Price
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 densityGet Price
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 ...Get Price
Blasting - Courses and Live Webcasts. Online courses, short courses and live webcasts about Blasting for mining and geoscience from Edumine.Get Price
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.Get Price
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.Get Price
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 …Get Price
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 moreGet Price
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 ...Get Price
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-769008Get Price
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 ...Get Price
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 theGet Price
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 HealthGet Price
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 inGet Price
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.Get Price
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 formulaeGet Price
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 timeGet Price
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 ...Get Price
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%Get Price
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.Get Price
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 …Get Price
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 ...Get Price
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】Get Price
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