Primary Mining Method
Sub-Level Longhole retreat.
Information
The broken ore is generally mucked out of a stope until the brow is open. More rock is then blasted in order to keep the stope full. If the stope is not straight, it is mucked out completely before blasting over the curve in order to ease the remote mucking. The final mucking of each stope is done with a remote scooptram. The scooptram operator generally dumps directly into trucks but occasionally he dumps into the remuck bay.
MUCKING-HAULING EQUIPMENT
- Tamrock 6-yard scooptram. Generally, one single scooptram for 3 trucks.
- MTI trucks (two 26 tons units and three 18 tons units).
Primary Mining Method
Cut-and-Fill mining method.
Information
The broken ore is either scraped or mucked with a front end self loader, Cavo 320, in a chute built along the service raise. The ore is then loaded directly into mine cars with an hydraulic controlled chute.
EQUIPMENT
- Scraper
- Cavo 320, front end self loader
- Locomotive, Greenberg 5 tons
- Mine cars of 3.5 and 4 tons. Approximately 5 cars per locomotive.
Attached Documents
Primary Mining Method
Sub-Level Longhole stoping.
Information
The mucking is done by retreating with remote controlled equipment. After a blast, the stope is completely mucked prior to another blast. This prevents the ore to be lost in the event of wall failure.
The scooptram dumps the ore directly into trucks.
EQUIPMENT
- 6-yard remote control scooptrams (2 units)
- 3-yard remote control scooptram
- 26 t trucks
To operate the scooptrams, the worker is on a concrete slab.
Secondary Mining Method
Longhole transverse.
Information
The mucking is done by retreating with remote controlled equipment. After a blast, the stope is completely mucked prior to another blast. This prevents the ore to be lost in the event of wall failure.
The scooptram dumps the ore directly into trucks.
EQUIPEMENT
- 6-yard remote control scooptrams (2 units)
- 3-yard remote control scooptram
- 26 t trucks
To operate the scooptrams, the worker is on a concrete slab.
Primary Mining Method
Sequential grid down dip.
Information
In stopes, scrapers and high-pressure hoses are used to clean the floor. The ore is then conveyed to raises containing an ore chute at the bottom, where the ore is loaded directly into mine cars. A drawpoint permits access as well as the ore loading with a mucking machine at the base of the stope, and also for the development of initial raise.
Primary Mining Method
Long-hole bench stoping with backfill.
Information
All the ore is hauled to the surface via the decline.
Primary Mining Method
Overhand cut-and-fill.
Information
The face is mucked out with a scooptram into an internal orepass. The mucking distance is kept under 152 m (500 ft) as much as possible. An orepass is located nearby the ramp and a second one which consists in a cribbed raise through the backfill. The cribbed orepass is located in the footwall. Every lift, the stope is enlarged to access the raise. The broken ore is loaded in mine trucks from a chute and then trammed to the main orepass.
EQUIPMENT
- Scooptrams of 1 yard and 2 yards
- 16 ton trucks
Attached Documents
Secondary Mining Method
Underhand cut-and-fill.
Information
The face is mucked out with a 1-yd to 2-yd scooptram. As much as possible, the mucking distance is kept under 152 m (500 ft). A 3.5-yd scooptram loads the muck into the trucks that brings the ore to the main orepass.
EQUIPMENT
- Scooptrams of 1 yd, 1.5 yd, 2 yd, and 3.5 yd.
- 16 tons trucks.
Primary Mining Method
Mechanized Cut-and-Fill.
Information
Every breast is mucked out after the blast. The ore is taken with a scooptram to an internal orepass. From there, a locomotive with mine cars brings the ore to the shaft.
EQUIPMENT
- Tamrock-Secoma electric-hydraulic single boom Jumbo. The boom is not paramatic (parallel holding), but it does not seem to reduce productivity.
- Tamrock-Secoma electric-hydraulic bolter.
- Elphinstone 3.5-yard Load-Haul-Dump (air-conditioned cabin).
- Locomotive with 10 tons motor or 5 tons motor.
- Mine cars: 5 tons.
- The haulage is usually achieved with 8 to 10 mine cars per locomotive.
Rail size: 27.2 kg (60 lb).
Track gauge: 75 cm (30 in).
Secondary Mining Method
Longhole open stoping.
Information
The muck is hauled from the stope to an orepass with a scooptram. Most of the mucking is done with remote control equipment. The ore is loaded into mine cars on the main haulage level, and is transported to the main orepass and hoisted to surface.
EQUIPMENT
3.5-yd Elphinstone scooptram.
Primary Mining Method
Sub-level long-hole retreat with backfill.
Information
The stopes are mucked out by a remote control or tele-operated scooptram. The ore is then brought to a muck bay to be loaded in a truck and transported to the surface.
EQUIPMENT
- Loaders: Elphinstone 1700 (10-12 t) and Elphinstone 2900 (15 t).
- Trucks: Elphinstone 69D (30 t) and Elphinstone 73D (50 t).
Primary Mining Method
Longwall.
Information
Scrapers are used to clean the face.
Attached Documents
Primary Mining Method
Open stope.
Information
85% of the mucking is done with a remote controlled scooptram. The ore is recovered in the stope and sent to a muck bay where it is taken by a loader of higher capacity to be loaded into trucks.
EQUIPMENT
Five-ton scooptram in the new drifts and 2-ton scooptrams in the old drifts.
Loaders on the site: Toro 151 (3 units), Elphinstone 1500 (2 units) and one Elphinstone 1700 (for development).
Trucks: Atlas Copco 444 - 30 t.
Attached Documents
Primary Mining Method
Retreating Longhole.
Information
The backfilling is done retreating with remote controlled loaders.
EQUIPMENT
- Elphinstone R2900 scooptram
- Toro 50D trucks
Primary Mining Method
Long-hole.
Information
The mucking is done 100% with a remote control scooptram. In the lower part of the mine, the ore is shipped to a muck bay, where it is then taken by a scooptram of higher capacity to be loaded into trucks. In the higher part of the mine, the ore is shipped into an orepass and then transferred directly into trucks.
EQUIPMENT
- Remote control scooptram Toro 301
- Toro 650 scooptram
- Toro 50 D truck
Secondary Mining Method
Room-and-Pillar.
Information
A scraper brings the ore to the base of the stope. Afterwards, a scooptram carries the ore to an ore pass or a muck bay.
Primary Mining Method
Long hole open stope.
Information
The mucking of the stopes are done by retreating with a remote controlled scooptram. The ore is sent directly into trucks or to a muck bay.
EQUIPMENT
- Remote controlled scooptrams, Elphinstone 1700 and 1500
- Toro 40D and 30D trucks.
Primary Mining Method
Long-hole sublevel retreat.
Information
The ore is mucked out with a scooptram. Because the mining is done retreating, it is done by remote control. The scooptram brings the ore to a muck bay located in the crosscut accessing to the stope. It is then loaded into trucks and brought to the surface.
EQUIPMENT
- Elphinstone scooptram (1700, 2800, 2900)
- Bell 40B truck
Attached Documents
Primary Mining Method
Longhole modified Avoca.
Information
Mucking of the ore is done with a scooptram, immediately after the blast of a row. For this reason, the majority of the mucking is done remotely. The ore is brought from the stope to an orepass located in the access drift. To limit dilution caused by mucking on rock fill, a line is painted on the walls. This method is simple and gives the operator a reference point. The general rule used to evaluate mucking productivity is 80 tons/hour for remote control and 120 tons/hour for direct mucking.
EQUIPMENT
Elphinstone 1700 scooptram.
Primary Mining Method
Modified Avoca.
Information
The stope mucking is done by a remote controlled scooptram. The broken rock is brought to the muck bay located in the access where a scooptram of higher capacity loads the trucks. An additional dilution of 5% is added for the hauling of fill floor. When the blasting of first rows is done against the backfill of the previous stope, a 40% dilution is added for the first row and 20% for the second row.
EQUIPMENT
- 3-yard scooptram
- 40 t trucks
Primary Mining Method
Mechanized cut-and-fill stoping.
Information
Following each blast, all the broken ore is mucked out to the stope access stockpile. All ore will be hauled up the decline to the existing Wannaway surface ore pad. Where possible, any waste rock encountered through development will be trucked to a stockpile to be used as backfill in the stopes. Grade lines are painted on the walls to guide the LHD operator to prevent mucking of the waste fill rock beneath the broken ore.
EQUIPMENT
- 3-yard scooptram in stope
- 7-yard scooptram to load trucks
- 40 t trucks