Mar 18, 2016· Underground Mining. ... A laser mining head could be readily mounted on a standard track drill and be used for blast hole drilling. The head …

Transverse Longhole Stoping is a popular large scale underground mining method known for its ability to simplify stope sequencing. It is an open stoping method and is very similar to sub-level open stoping, Longitudinal longhole retreat, and blast hole stoping.

In 2010 Jeff founded DD Grout Plugs, which designs and supplies unique pressure and load rated diamond drill hole plugs globally to underground mining operations. The Underground Stemming products were designed as simple, effective and easy to use products to give greater control over underground blasting operations.

When you need a diverse range of underground production drilling services such as long-hole drill and blast, slot and inverse raises, cable bolt drilling and more, trust Boart Longyear. You need safe, fast, and effective production drilling from a drilling contractor with the right technical expertise and compliant and reliable rigs and equipment.

UNDERGROUND BLASTING TUNNELING There are two reasons to go underground and excavate: i. to use the excavated space, e.g. for storage, transport etc. ii. to use the excavated material, e.g. mining and quarrying operations. In both cases tunneling forms an integral part of the entire ... Short-hole blasting is usually used in breast stoping for ...

One of the most important aspects of underground hard rock mining is ventilation.Ventilation is the primary method of clearing hazardous gases and/or dust which are created from drilling and blasting activity (e.g., silica dust, NOx), diesel equipment (e.g., diesel particulate, carbon monoxide), or to protect against gases that are naturally emanating from the rock (e.g., radon gas).

Epiroc's rugged face drilling rigs are built for blast hole drilling in underground mining and tunneling with a wide range of cross sections. Real operational economy. Standard features like dual damping drills lengthen the lifetime of consumables, while the fast boom movement with great visibility maximize uptime.

A New Perimeter Control Blast Design Concept for Underground Metal/Nonmetal ... Example showing drill hole locations of a successful blast design in Australia that ... This report presents a new concept in perimeter control blasting for underground metal/nonmetal mine drifting applications focusing on the importance of the buffer holes in a

But the principles in sublevel caving blasting are applicable to other underground mining methods. The following topics are discussed in detail: drilling plan, blast plan, brow damage, misfires ...

Driller and Blaster Drillers and Blasters are not only employed in the Mining Industry, they are also frequently employed in the oil and gas industry, the construction industry, for forestry companies and avalanche control companies as well as many other industries. ... They may also be responsible for drilling blast holes in rock at road or ...

Dec 06, 2018· Hence, the impact of blast-hole deviations can be felt throughout the production cycle, excavating, hauling, and mineral processing. Mining3 in partnership with Robit, global drilling tools specialist, and CSIRO have taken up the challenge to develop an underground percussive drill hole deviation measurement tool. The new system, dubbed as U ...

provides mining technology products for open pit and underground mine applications. Technologies that enable fleet management, drilling & blasting, loading, hauling, dozing, truck assignment, material tracking and operator management. MineStar is an integrated mine operations and mobile equipment management system that enables ...

Fast, efficient underground drill and blast design. Update holes layouts against survey and design changes, change the drill rig or reverse the drill look direction.

Jul 09, 2019· Underground Blasting is the main method to cave the tunnel, inclined well and vertical well or for underground mining etc. The underground drill rig is most suitable for this application. Flowing topics are discussed in details:

Blast hole Drilling is a technique used in mining whereby a hole is drilled into the surface of the rock, packed with explosive material, and detonated. The aim of this technique is to induce cracks in the inner geology of the surrounding rock, in order to facilitate further drilling and associated mining activity.

Mar 13, 2012· (1) Drill AdaptabilityThe type of rock drill used in mining drilling is generally determined by the hole diameter required and the mechanical properties, principally hardness, of the rock.A top hammer is commonly employed for drilling of holes less than 125 mm in diameter in all but the hardest rock, although a rotary cutting method may instead ...

Find Out More about Mining Technology. provides mining technology products for open pit and underground mine applications. Technologies that enable fleet management, drilling & blasting, loading, hauling, dozing, truck assignment, material tracking and operator management.

Epiroc's rugged face drilling rigs are built for blast hole drilling in underground mining and tunneling with a wide range of cross sections. Precise production drills . Simba long-hole drilling rigs offer a variety of feed lengths, positioning configurations and rock drills built for quick setup and accurate hole …

76mm – 311mm Drill hole capacity using Top hole hammer, Down hole hammer and Rotary drilling techniques. Inpit grade control capability with crawler mounted drills to depths of 50 metres. Tele remote drilling to allow safe access over void ground and under dangerous highwalls; High pressure and low-pressure rigs for specialised blast hole ...

Benefits of Inclined Drilling in Surface Mining: In Bench Blasting, inclined drilling extends numerous benefits. These are: – Better Fragmentation – Better displacement and swelling of muckpile, as Burden B is kept almost uniform along length of blasthole and angle of projection of the blast …

Our rotary blasthole drills are productive solutions for all mine types. When you need to meet your drilling and blasting needs at the lowest cost per meter drilled, these powerful and reliable systems make P&H drills your best choice.

KEEPING OPEN OF UNDERGROUND BLAST HOLES R Hawker Minova Australia D O'Connor Minova RSA Abstract Underground mining of base metals like copper often uses massive mining methods such as sublevel open stoping. A feature of these mining operations is the drilling of "rings" of blastholes, typically 60 – 120 mm in diameter and often over 15 ...

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, tunnel or road construction. The result of rock blasting is …

In-the-Hole Drilling Drill metre Blasting Production ore tonnes LHD Mucking Primary and Retram Mucked/trammed tonnes Function/Activity Driver ... Underground Mine Cost($/t) Total $0 $50 $100 $150 $200 $250 Mine 1 Mine 2 Mine 3 Mine 4 Mine 5 Mine 6 Mine 7 Mine 8 Mine 9 G & A Processing Cost

Nov 28, 2017· "Mining is a manufacturing business and it's a game of efficiencies," explains Berens. "The blast hole drill is one of the first operational steps in that value chain. Therefore, automating that process and getting rid of the element of human free will and …

Nov 02, 2011· Underground mining, Underground mining methods. Lecture 4: Underground Mining 1. Hassan Z. Harraz [email protected] 2010- 2011 This material is intended for use in lectures, presentations and as handouts to students, and is provided in Power point format so as to allow customization for the individual needs of course instructors.

Furthermore ROC rigs are not just better at presplit drilling, they can also be used for a variety of other tasks such as leveling benches for the large rigs, complementary drilling of buffer holes up to 203 mm, drilling long, horizontal dewatering holes or using the Reverse Circulation (RC) …

The D25KS down-the-hole (DTH) blasthole drill is a durable and cost-effective choice for use in large quarries, and in gold and other metal mines. The drill is ideal for mining contractors, with easy transportation. It drills holes with a diameter of 127 - 172 millimeters (5 - 6 ¾ inches), and at a maximum depth of up to 27 meters (88 feet).

Master Drilling offers a comprehensive portfolio of niched drilling services, adapting to, and meeting each and every client requirement: We offer cutting-edge solutions across the mining, energy and civil engineering sectors; focusing on speed, efficiency, innovation, scale, accuracy and flexibility.

crest of the face unsafe and often presents problems in drilling the first row of holes for the next blast Decoupling ratio can be defined as the ratio of the diameters of an explosive column and the blasthole and is usually expressed as a percentage. For example, if an 88 mm diameter hole is charged with 64 mm diameter cartridges,