Raise-boring experiences in the gold mines of the …
purchase of a raise-borer from a Group contractor and then carrying out a series of trials at Anglo American Corporation gold mines. In the first twelve months of operation, 11 holes were bored on a non-profit contracting basis using a Robbins 61R raise-borer. This paper describes in general terms some of the experiences to date on machine ...
RAISE BORING MACHINE
These machines are designed to execute raises by Raise-Boring method only. These drills can be manufactured for the excavation of up-reamed large shafts in diameter up to 6,000mm in a single pass. 4 TERRATEC RAISE BORING MACHINES 5 TR SERIES TERRATEC RAISE BORERS' UNIQUE FEATURES: 1. HEIGHT TERRATEC's Raise Drills have the lowest standard
(PDF) Empirical Models for Estimating Performance and …
Initial raise-boring experiences in South African gold mines showed disappointingly high costs due to the abrasivity and difficulty of drilling Witwatersrand quartzites.
RHINO | TRB-Raise Borers
World's most efficient and productive raise borers are built by TRB-Raise Borers Ltd. Our raise boring experience spans over five decades. Toggle menu. Products; Contact; RHINO 100 Completely new, revolutionary method for drilling slot raises in underground mines. World's fastest raise borer can drill 500 m a month. Short slot holes are no ...
1910G in a mine | John AU
It appears that 1910G is a real monster in a mining tunnel, too – as experiences from Finnish Lapland would suggest. Located in Lapland, Finland, the Kittilä mine is currently the biggest gold mine in Europe. Operated by Agnico Eagle Finland Oy, the mine deploys a Rhino 100 mobile raise borer that is using John 1910G as carrier.
Analysis of Raise Boring with Grouting as an Optimal …
The construction of ore pass systems in underground mines is a high-risk activity, especially in an environment with incompetent rock mass. This study aims to investigate the optimal method for ore pass construction in incompetent rock masses. We evaluated the conventional and raise boring (RB) methods based on safety, efficiency, excavation control, …
Raise bore drilling: mining South Africa's heart of …
A raise borer is a machine used in underground mining operations to bore a circular hole between one level and another, lower level, effectively removing the need to conduct risky and wasteful blast excavations using …
Boring At High Thrust And Its Potential In The Hard-Rock …
Raise-boring studies carried out in South African gold mines have indicated that increased penetration rates and possibly reduced costs could be obtained if higher thrusts were available …
RAISE BORED SLOT RAISES: A MODERN MINING …
RAISE BORED SLOT RAISES: A MODERN MINING TECHNIQUE Jarko Salo, TRB-Raise Borers Oy Slot raises refer to relief holes within a stope, intended to provide void space (or burn-cuts) for blasting, thereby allow "expansion" of the blasted rock and to improve fragmentation. The benefits of larger diameter slot raises to the mine productivity are
Large Diameter Vertical Raise Drilling and Shaft Boring
Raise borers can be used in various modes of operation and the modes most often used are: ... • At Kloof Gold Mine South Africa a 1 100 meter deep 4.1 meter diameter hole was drilled through the hardest rock formation being Lava with an UCS between 600 and 750 Mpa.
RAISE BORED SLOT RAISES: A MODERN MINING …
Jarko Salo, TRB-Raise Borers Oy . Slot raises refer to relief holes within a stope, intended to provide void space (or burn-cuts) for blasting, thereby allow "expansion" of the blasted rock and to improve ... Agnico Eagle Kittilä gold mine (Finland) is without a doubt a global pioneer and leader in utilizing raise boring in their ...
Going for gold | John UK
It appears that 1910G is a real monster in a mining tunnel, too – as experiences from Finnish Lapland would suggest. Located in Lapland, Finland, the Kittilä mine is currently the biggest gold mine in Europe. Operated by Agnico Eagle Finland Oy, the mine deploys a Rhino 100 mobile raise borer that is using John 1910G as carrier.
Rhino 100 mobile raise borer is a game-changer for Raising Australia
The first arrived in August 2018 and was sent to Northern Star's Jundee gold mine at Wiluna in Western Australia. The next was delivered in October 2018 and has been a campaign machine, travelling to a range of customer sites. ... Jarko Salo, Managing Director for TRB-Raise Borers, says the positive experience of Raising Australia is common ...
Barminco, Ausdrill transport Rhino 100 raise borer to Regis' …
Having become the first company globally to have taken delivery of a mobile raiseboring machine with uphole, downhole, and back reaming capability, Barminco is transporting a Rhino 100 Raise Borer to another client site in Australia.. With the help of its Perenti surface mining partner, Ausdrill, the newest addition was recently transported to Regis …
WHAT NEXT FOR RAISE BORING?
As new mines are constructed to meet demand critical metal and minerals, raise boring can also provide flexibility to mine development, particularly when mines require multiple shafts, slopes (declines), and underground …
Raise bored slot raises: A modern mining technique
gold mine (Finland) is without a doubt a global pioneer and leader in utilizing raise boring in their production drilling. Their first Rhino 100 was introduced 2014.
1910G in a mine | John
It appears that 1910G is a real monster in a mining tunnel, too – as experiences from Finnish Lapland would suggest. Located in Lapland, Finland, the Kittilä mine is currently the biggest gold mine in Europe. Operated by Agnico Eagle …
Raise Boring
Cementation introduced large diameter hard rock raise boring into Canada at Goldcorp's Red Lake Gold Mines. This bored shaft was completed in 2006 and established a record for the largest diameter and longest single pass raise …
Raise borer
A raise borer is a machine used in underground mining, to excavate a circular hole between two levels of a mine without the use of explosives.. A schematic overview of the machinery used irony a raised boring. The raise borer is set up on the upper level of the two levels to be connected, on an evenly laid platform (typically a concrete pad).
Raise boring equipment
The Raise Boring System includes a wide range of reaming heads in a number of types, sizes and configurations for boring holes from 0.6 to 6 meters in diameter. Designed ... In mines, large fill-holes between 0.6 and 1.8 m in diameter can be bored into stopes using reaming equipment, provided that a pilot hole can be pre-drilled into ...
Suggestion of new models for predicting performance of raise …
This study is performed on the rock samples with igneous, sedimentary, and metamorphic geological origins that are collected from Balya Lead-Zinc Underground Mine, Yusufeli Dam and HEPP, Efemcukuru Gold Mine, and Adiyaman Copper Mine in Turkey. The operational-performance parameters of the RBMs are recorded/calculated during the field visits.
Ventilation Shaft Raise Boring Rig, Hydraulic Boring Rig Machine For
Ventilation Shaft Hydraulic Raise Boring Mchine for Gold, Silver and Copper Mine Introduction: Our raise boring machine is designed for kinds of the construction of shafts (such as vertical shaft, ventilation shaft, ore pass, production shaft and so on) in hard rock down to depths of 400 meters.
Raise bored slot raises: A modern mining technique
Conventional raise borer Mobile raise 2 borer1 Rhino 100 Highly mobile raise borer Monthly production up to 140m 155 336 Number of slots/month 5 6-7 14-15 Table 1. Comparison of slot drilling productivity. The data comparing "Mobile raise borer" and "Rhino 100 highly mobile raise borer" are from the same mine in Western Australia since ...
Rugged, reliable & flexible box-hole boring
Following nearly three years of operation and many thousands of metres bored Terratec's UB1000-R16 Universal Box-Hole Borer remains a reliable and efficient workhorse for its Western Australian mining contractor owner. ... and also could be quickly switched to operate as a conventional raise borer, capable of pulling up to 3 m diameter holes ...
Raise Boring
Cementation introduced large diameter hard rock raise boring into Canada at Goldcorp's Red Lake Gold Mines. This bored shaft was completed in 2006 and established a record for the largest diameter and longest single pass raise bored in the Canadian Shield with a raise of 694 m in length and 5.52 m in diameter.
TERRATEC Raise Borer makes big advances in …
The Raise Boring Machines was procured by Minera Santa Cruz, affiliated to Hochschild Mining, the leading silver and gold mining business developer in North, Central and South America. The group, founded in 1911, …
Different Raising Techniques in mining | PPT
Raise Borers Applied to drive a raise between two levels. Raise up to 910 m length and 30° to vertical (generally >45°),0.9 m -3.7 m dia. driven. Circular configuration obtained without drilling and blasting. Machine setup at top and pilot hole of 225-250 mm dia. drilled down to get through into lower level. Large reamer bit is put at bottom ...
1910G in a mine | John
It appears that 1910G is a real monster in a mining tunnel, too – as experiences from Finnish Lapland would suggest. Located in Lapland, Finland, the Kittilä mine is currently the biggest gold mine in Europe. Operated by Agnico Eagle Finland Oy, the mine deploys a Rhino 100 mobile raise borer that is using John 1910G as carrier.
Raise boring slots: a modern mining technique
The solution was developed by TRB-Raise Borers when the highly mobile RHINO 100HM raise borer took over in July 2014, and the conventional long-hole top-hammer drill rigs were …
Rhino raiseborer has Raising Australia reaming …
In 2014, a team from Raising Australia travelled to Finland to inspect the Rhino 100, developed by TRB-Raise Borers and distributed by . Mounted on rubber tyres, the Rhino 100 could travel under its own …