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
A NEW PERIMETER CONTROL BLAST DESIGN CONCEPT FOR UNDERGROUND METAL/NONMETAL DRIFTING APPLICATIONS Stephen R. Iverson, William A. Hustrulid, and Jeffrey C. Johnson Office of Mine Safety and Health Research National …
operation. Underground mine operations began in 1996 following completion of surface mining. Mining Issues Orica Mining Services were asked to provide the timing design and i-kon™ blasting service at Darlot Gold Mine for Blast BR 997. Barrick provided the blast hole design and co-ordinates data which was exported into Orica's SHOTPlus-i ™
Figure 4 - Key-cut method used at Ulan Mine OVERBURDEN CAST BLASTING OPTIMISATION Cast blast design parameters Ulan surface operations commenced mining the first strip by firing Strip#1 on March 15th 2012. Currently Strip 6 is being mined out and Strip 7 is being drilled (Figure 5).
Chapter 8 BLAST DESIGN (Figure 8-2) Staggered pattern (Figure 8-3) Sing (Figure 8-1) Square or rectangular pattern. 114 ... The economic analysis of the use of explosives is an important part of blasting operations in mining and construction. Explosives are energy, and the efficient use of this energy is a major factor in keeping rock blasting
All functions of blasting design parameters, blast hole automatic arrangement, wire connection and time-delay, blast casting effect prediction, and design result exporting are combined in the intelligent design system. The intelligent blast casting design flowchart is shown in Figure 7.
surface mine blast design & consultant system r-----blast design expert consultant for vibration problems burden hole diameter, stemming hole depth check seismographic reading i, pattern design blast design analysis
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.
This module presents recommended blast-design practices for surface mine and quarry blasting. 1.3 : Blaster Training Module 4 This module presents aspects of surface drilling that are important to blasting operations. The purpose of drilling into rock is to provide a …
we design, engineer and manufacture our products, and leveraging technology and ... Surface mines rely on rotary drills to quickly drill consistent blast patterns. They're used in all applications— soft ... surface mining operation. The selection of a truck fleet is a significant investment that
Underground Mining Development . Different Access to Ore Bed . Mining Cycle . Some Examples . Surface mining Development . Blasting . Explosives . Drift or Tunnel Blasting . Blast Pattern Design . Firing Sequence . Smooth Wall Blasting . Supporting . Objective . Material Used and reinforced . Typical rockbolt systems . Wire Mesh . Shotcrete ...
drilling and blasting powerpoint 2003 1. seminar ondrilling & blasting equipments (2008-09) by yogesh s. ghule veermata jijabai technological institute civil and environmental engineering department 2.
Apr 21, 2012· drilling and blasting powerpoint 2003 1. seminar ondrilling & blasting equipments (2008-09) by yogesh s. ghule veermata jijabai technological institute …
Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics, to break rock for excavation. It is practiced most often in mining, quarrying and civil engineering such as dam or road construction. The result of rock blasting …
Surface Mining ViewShot® The ViewShot ® blast timing software allows blasting plans to be designed and simulated on a computer that can be directly downloaded into the control equipment.
Jan 01, 2005· According to data compiled by the Mine Safety and Health Administration (MSHA 2012) and the Energy Information Agency (EIA 2012), surface mining contributed 69% of …
Sep 22, 2012· NOTE: Although this video shows an up-close look at the blasting process, NEVER go near an active surface mine or blast site without Federal training and …
Blast Design The best use of explosives is made when a blast produces a clean break, giving good fragmentation, while avoiding ... In surface mining or quarrying, oversize boulders cause delays in loading operations. Boulders or oversize rocks have to be ... H_BLASTING IN SURFACE EXCAVATION
Blast area security in underground mines is much more complex than surface blasting. It requires a thorough understanding of ventilation, roof characteristics, and the roof control plan of the mine. The bounds of the blast area need to be adjusted accordingly. Blasting could cause ground fall in adjacent
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
Blast Design and Assessment for Surface Mines and Quarries consists of 36 viewing sessions of 30 - 60 minutes each with supporting figures, tables and examples, a glossary of blasting and excavation terminology, and interactive course reviews.
TUNNELS, SHAFT AND DEVELOPMENT HEADINGS BLAST DESIGN INTRODUCTION Tunnels, shafts, and raises are developed for a variety of purposes. In mines development headings provide; mine access for men and materials, ore and waste hoisting, and ventilation paths. Shafts are also used in civil construction projects. In hydroelectric projects, shafts and
has yet to create a blast design method specifically tailored for large surface coal mine bench blasting. This research examines the typical scale of bench blasting at large surface coal mines, develops a new method of design tailored for these operations, and tests the new method against two widely accepted traditional blast design methods. Novel
5 SURFACE STRIP COAL MINE BLAST DESIGN 5.1 INTRODUCTION TO EXPLOSIVES AND BLASTING 3 5.1.1 Blasting Theory 4 5.1.2 Explosives Properties and Types 6 EMULSIONS 7 ANFO 7 HEAVY ANFO 7 INITIATION SYSTEMS 8 DETONATORS 10 SHOCK TUBE SYSTEMS 11 DETONATING CORD 11 5.1.3 Explosive Strength and Performance 12
Apr 04, 2017· Surface blasting breaks up rock and frequently throws rock away from the blast site. Mine workers may be killed or injured by rock thrown by a blast. The blaster who designs a blast determines how far rock from the blast is expected to go.
Surface-Blast. Design 1 1 B 3 1 1 S 2 2 3 2 3 3 B This blaster-training module was put together, under contract, with Federal funds provided by the Office of Technology Transfer, Western Regional Office, Office of Surface Mining, U.S. Department of the Interior, located in Denver, Colorado.
Blasting Mats – Mats used to cover a blast in an urban situation where flyrock cannot be tolerated and the situation dictates that explosives are loaded fairly high up in the holes. Note that it is not practical to cover large blast areas, and prevention of flyrock is best addressed in blast design for those situations.
I-- SURFACE MINE BLAST DESIGN AND CONSULTANT SYSTEM / A Thesis Presented to The Faculty of the College of Engineering and Technology Ohio University In Partial Fulfillment of …
Blast Training Course Guide. Duration 4 Hours Who Will Benefit Those on a mine site, or in a quarry or construction blast ... the National Surface Blasting Competencies, Regulations, Codes and Standards. ... Workshop – Rules of Thumb for Blast Design Charging Methods Initiation Systems – …
This Blast Management Plan (BMP) forms part of a series of Environmental Management Plans for the Vale Integra Mine. It encompasses blast management across both the Integra Coal Open Cut and Integra Coal Underground Sites, collectively known as the Complex.
National Institute of Technology Rourkela CERTIFICATE This is to certify that the thesis entitled "SURFACE BLAST DESIGN-A COMPUTATIONAL APPROACH" submitted by Sri Ashutosh Mishra, Roll No. 10505029 in partial fulfillment of the requirements for the award of Bachelor of Technology degree in Mining
blast design in surface mines Objectives of Blast Design Obtaining optimum fragment size Proper degree of fragmentation to achieve the lowest combined cost of mining Utilising explosive's energy properly through suitable blast design in the mines Controlling the unwanted effects of blasting Minimising the environmental impacts
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