drilling paterns in undergrund mining

Drill Blast Best Practices Part Two Drill Pattern

Drill Pattern Design and Results Simulation All of this so far is just a part of creating an effective drill pattern design Other fundamentals are the analysis of the bit diameters available for drilling pattern geometry calculation determination of angles azimuths and sub-drillings as well as calculating the final depths of the holes to be executed...

Drilling and Blasting Technical Aspects of Mining

Drilling Most blasting in mines involves charging explosives into holes drilled in rock The entrance or mouth of a drill hole is called the collar and the end is the toe Drilling is still carried out in some cases in the ASM sector by hand using a hammer and chisel This is obviously tedious and slow especially in hard-rock mining...

Drilling Paterns In Undergrund Mining

Drilling Paterns In Undergrund Mining Prompt Caesar is a famous mining equipment manufacturer well-known both at home and abroad major in producing stone crushing equipment mineral separation equipment limestone grinding equipment etc...

A New Perimeter Control Blast Design Concept for

range of blast patterns cut designs hole spacings for the perimeters the number of empty holes and spacing for line drilling perimeter burdens explosive types used use of perimeter hole decoupling to prevent damage blast round length and variability in cross-sectional arch design and implementation...

Drill Blast Pattern Design EXEL Drilling Mackay

As part of our Drilling Blasting services we offer specialised computer-assisted drill and blast pattern design Using state-of-the-art blast design and management software our technical staff create optimised blasting designs empowering us to conduct precision blasting within...

Underground Drill Rigs and Bolters Mining Drill Rigs

longhole drill rigs for underground drilling and bolting are engineered to minimize ore loss and dilution by drilling straight and accurate holes up to 54 meters 177 feet in length We offer a comprehensive range of boom types hydraulic rock drills carrier size classes and tool selections to ensure optimum hole quality every time...

Mine Surveyor

Blast Pattern - A drill pattern that has been completed and is ready to be loaded or is loaded with explosiv Bogger/LHD - Load Haul Dump An underground loader Bord - A tunnel driven at right angles to the main headings Box Cut - The initial cut in the ground when excavations are to...

REI Drilling Inc

Innovative Directional Drilling Services For The Mining And Civil Industries REI Drilling Inc contracts a fleet of drills for various mining and civil applications on the surface or from underground including directional drilling for geologic exploration water drainage or transfer methane drainage abandoned mine verification solution mining remediation utilities installation and...

Blasting Technique

Underground mining and construction projects face several challenges unique to the underground environment compared to the surface environment The goals are the development of an effective blast pattern that minimizes cost maximizes face advance and...

Underground mining hard rock

Underground hard rock mining refers to various underground mining techniques used to excavate hard minerals usually those containing metals such as ore containing gold silver iron copper zinc nickel tin and lead but also involves using the same techniques for excavating ores of gems such as diamonds or rubi Soft rock mining refers to excavation of softer minerals such as salt coal...

Drilling in mining

Apr 07 2014 0183 32 The drill site should be well examined and procure the required tools and man power for preparing the site for drilling 6 The drill pattern is designed as per the technical requirements of the overall mining The drilling personnel need to get this drill pattern and accurately mark the drilling pattern...

PDF ROCK BLASTING FOR MINING

The drill pattern is designed to cover off the ex tent of the ore in the stope This type of blasting will cause the ore to sw ell by 30 and this must be allowed for wh en blasting otherwise the...

CA2525850C

A method for improving underground fluid collection and removal The method includes drilling one well 20 with a vertical section and a horizontal section 40 having main bores and branch All the branches are substantially in one horizontal plane except one branch for each main bore That one branch 140 for each main bore is slope downward towards a common place where a second...

Underground Face and Jumbo Drill Rigs for Mining and

The underground jumbo drill rigs from Epiroc are used for blast hole drilling in underground mining and tunneling The rigs are equipped with up to four booms covering cross sections from 6 m 2 to 206 m 2We offer underground jumbo drill rigs with our reliable Direct Control System DCS or with the computerized Rig Control System RCS to which different levels of automation may be added...

Drop raising in underground mines

Jun 16 2018 0183 32 DRILLING FOR DROP RAISING Sometime additional one hole of 165mm dia and nine holes of 57mm dia are drilled up to 15m and 8m length respectively as shown in the fig for safety purpose During drilling of 165mm dia holes strict supervision and drilling accuracy should be maintained to avoid deviation of hol...

Drilling patterns

Introduction Blasting tunnels or drifts is a necessity in all underground mining operations Drill and blast techniques are the most conventional and common method and is most useful in high UCS and homogeneous rock types albeit slower than other...

DeswikUGDB Underground Drill and Blast Design

Fast efficient drill and blast design for underground mining methods Request more info Download Brochure Key Featur Set blast timing for holes in various patterns and sequences and animate the resultant blast BLAST SOLIDS Slice the original stope solid against a ring layout or generate directly from the ring designs...

Chapter 8 BLAST DESIGN

the shot will allow for an expansion of the drilling pattern with resultant decrease in overall drilling costs Improved production rates and consequent cost reduction in digging hauling crushing or moving rock are the major benefits obtained from the efficient application of...

Underground Mine Development

Dec 01 2011 0183 32 The planned underground expansions to existing mines as well as major new underground operations being looked at means that achieving faster and more efficient development underground is as much...

Hand Held Rock Drilling for Mining Efficient and

Quality drilling means using just enough water for flushing The RD100 has a five-step water adjustment to help you use the right amount of water for each step And when you stop drilling the flow stops automatically Of course you still have the ability to force feed water to flush out the drill if it is jammed...

Blast Hole Drilling The Basic Process RPM Drilling

Blast hole drilling is traditionally used wherever the mining company wants to explore the mineral composition or potential mineral yield of the area demarcated for their mining interests Blast holes are thus a fundamental step in the exploratory mining process and can be employed in both surface mining operations and underground mining...

DRILLING FOR OPENING SLOTS FASTER SAFER AND MORE

The drill pattern of the long hole rise consist of 82 mm 325 blast holes and 127 mm 5 open void hol The length of the long hole rises varies around 20 m and are 90 degree upwards and have about 70 degree side rotation...

Drilling and blasting

Drilling and blasting is the controlled use of explosives and other methods such as gas pressure blasting pyrotechnics to break rock for excavationIt is practiced most often in mining quarrying and civil engineering such as dam tunnel or road constructionThe result of rock blasting is often known as a rock cut Drilling and blasting currently utilizes many different varieties of...

Drilling and Blasting Archives

Mining Drills and Drill Equipment All Mobile Blasting Dustless Blasting Systems for Removing Industrial Paint and Coatings B Bulk Mining Explosives BME Drilling and Bolting Equipment for Underground Mining MINTECH High-Quality Blasting Equipment for the Mining...

Long hole drilling applied to narrow reef mining

A long hole mining system was then defined with a corresponding face mining system which led to the design of a test programme for the Solo drilling rig Earlier experience at Telfer The proposed face mining system was based on a mining method that is practised at Telfer Gold Mine in Western Australia Telfer has a series of domed reefs that...

PDF Underground mining Methods

Holes drilled underground are gener ally drill ed perpendicular in a radial pattern around the drive For the blastholes to successfully extract the or e material they must be able to fire into a...

Drilling pattern in underground mining wedge cut

Jan 06 2019 0183 32 In this video explain the wedge cut pattern which is used in solid blasting Important questions for mining compition exam https //youtube/nfm7rutwzbo Seco...

Underground mining Burn cut drilling holes

Dec 18 2017 0183 32 Drilling pattern in underground mining wedge cut drilling pattern MINING GURUKUL - Duration 3 49 MINING GURUKUL 10 813 views 3 49 Underground Drilling and Blasting Training DVD...