The Alimak raising method consists of five steps, which together make up a cycle. The five steps are all dependent on the Raise Climber, which. ALIMAK INC. – Alimak Raise Climber. Operating height (m): . Operating width (m): Platform dimensions: m x m. Maximum length. In underground mining, a raise refers to a vertical or inclined excavation that leads from one level, or drift, to another. A raise may also extend to surface. There are four excavation methods for raises: Conventional or open raise; Long- hole or drop raise; Alimak · Raise boring.
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ALIMAK Raise Climber
With better ground control, larger stopes can be taken. It is also quite common that arise production holes in the raise mining method are smaller than in regular stoping, which will spread the explosive energy more evenly. The production drill sits in the middle of its work, cutting the drilled length in half. The platform can be any shape and size. Pressure shaft of m.
When the air has been cleared the crew can ascend in the Climbre Climber to the face, vlimber and install a new guide rail section, all under protection of the safety roof. Stope stability decreases with increasing hydraulic radius, so it can be deduced that a long thin opening will be more stable than a squat opening of the same area, with all else remaining equal.
We can assist you with all your underground mining requirements.
Faster Access to Undeveloped Ore Once the climber nests are established, ore starts to flow. This is less important in sulphides, where the driller can tell if the bit is in daise by the colour of the cuttings.
The nest will be slashed out of the drawpoint backs if development is from the hangingwall side.
It runs on a guide rail anchored to the hanging wall. A narrow vein ore body has less ore to soak up waste development costs, making the raise mining method an obvious choice.
The broken ore often compacts slightly, resulting an effective swell of climbrr one third its unbroken volume. In theory, and if properly cabled, the foliated hangingwall could be approximated as a laminate beam by the Voussoir approach, as climebr by Hutchinson and Diederichs How It Works The Alimak method raises between levels in a safe and effective manner.
There is often considerably less waste development with raise mining than with regular open stoping. Faster Overall Extraction With better ground control, larger stopes can be taken. Raise Climber Mining Method Details The raise climber mining method will generally be comprised of the following steps: This allows the drill planning to be done before the production drill is set up in the raise.
The graph ordinate is an estimate of the rock stability and includes factors for block size, joint surface condition, rock strength, joint orientation and the alimka of gravity. Manroc routinely applies rigorous maintenance programs and checks on all our Alimak equipment ensuring the safety of all individuals.
These drifts are driven from the shaft or established mining areas to the new ore zone. Boxholes, raises at degrees and ore passes. The machine, equipped with rack-and-pinion drive, travels along a guide rail and monorail with pinion rack, which are bolted to the hangingwall by expansion bolts.
The Alimak Method consists of five steps which together make up a cycle. The climbers require about 4. This step is often required where rock fill is used.
Alimak Raise Climbers and shaft enlarging equipment are available for underground mining, civil engineering and hydro-electric power generation as well as for operating as inter-level service lifts.
Alimak Raise Climber – Buy Raise Climber Product on
Better Ground Control Cables can be installed right up the middle of the hangingwall, where they will do the most good. The Raise Climber serves both as working platform and as a means of transport up to the aliak face.
The platform is adapted to fit the size and shape of the raise. China climber 1 China steel climber China climber stepper. The production drill holes are oriented slightly down from along strike, which is also roughly perpendicular to that found in the regular open stoping method. The graph is divided into areas that have been delineated by observed stope behaviour.
Since its introduction, the Raise Climber has been developed and improved into what is now the 6th generation, the Alimak RCM-series, enabling fast, mechanized drilling of long, inclined shafts and improved working environment. Anglo Gold, South Africa: The graph abscissa see above figure is the hydraulic radius of the stope. Change the order of display of the official languages of Canada English first French first Option to display the non-official languages Spanish or Portuguese Neither Spanish Portuguese Display definitions, contexts, etc.
Not exactly what you want? We are your preferred underground mining professionals. The Alimak Mining Method Raise Climber Mining Conditions This type of mining is best suited to raiae narrow vein ore bodies with enough dip for gravity ore flow. This improves drill accuracy which, in conjunction with the better ground control, reduces dilution substantially. It is better if the ore body is continuous over alimxk hundred feet vertically. Alimakk fence and piping if required.
Alimak Raising, Manroc Developments Inc.
Inclined pressure shafts totalling This type of mining is best suited to tabular narrow vein ore bodies with enough dip for gravity ore flow.
This advantage is easily visualized if one imagines the hangingwall zlimak a fractured beam or plate. The language you choose must correspond to the language of the term you have entered. The blasts are timed to slash down, with the footwall holes often the last to fire.