Sublevel caving is a relatively safe mining method since the operations take place in small areas at a time and are highly mechanized. The uniformly distributed nature of generally 5mx3.7m sublevel nature of drifts aids in the safety of this mining method.
Sublevel stoping..Underground mining methods 1. Hassan Z. Harraz hharraz2006@yahoo 2014- 2015 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.
A method in mining by sublevel caving in which in a development phase are driven haulage drifts or shafts and from said drifts or shafts are driven cross-cuts in an orebody with a spacing vertically and horizontally suitable from an economical and technical point of view, from which cross-cuts one or more longitudinal drifts are driven in said orebody, wherein said cross-cuts are driven ...
Sublevel stoping is a commonly used method in large scale mining. It is a versatile and productive method that is primarily used for large ore bodies with a ...
characteristics. The sublevel stoping It is an excavation method that consists of dividing the deposit into several vertical sections, to empty the basic mining unit, called the mansion.. The mineral that is collected in the mine is accumulated in trenches placed at the foot of the house, and from there the extraction begins applying different techniques, according to the convenience of the case.
The method is similar in some respects to sublevel caving—the ore is mined from the top downward by a series of slices, and the overlying strata cave and follow the mining downward with a mat intervening between the caved overburden and the ore beneath.
8.3.3: Sublevel (Open) Stoping. If we had a stronger and more competent host rock, we could dispense with the need to keep ore in the stope to support the hanging wall as we do VCR mining. Indeed, such deposits do exist, and when they do, we can employ the open stoping method.
Sublevel stoping. Square-set stoping. Filling methods. Underhand Stoping Mining Method. The method of underhand stoping in which the ore is drawn to the level above (B, Fig. .1), is called Cornish stoping.
Sublevel caving is a large scale mining method, suitable for large ore bodies with a steep dip and a rock mass where the host rock in the hanging wall will f...
Sublevel caving: unearthing new opportunities . The known resource base for base metals is increasingly comprised of large scale, low-grade deposits, situated at increasing depths where underground cave 1 mining methods are the only viable means of economic extraction.. In the spectrum of underground mining methods, caving methods are the lowest cost and most productive.
Long-hole sublevel stoping, often referred to as sublevel open stoping and blast hole stoping is a commonly used method in large scale mining. It is a versatile and productive method that is primarily used for large ore bodies with a steep dip, regular shape, and defined ore bodies. Sublevel stoping mining methods are very popular in Canadian ...
Sublevel stoping is a mining method in which ore is blasted from different levels of elevation but is removed from one level at the bottom of the mine. Before mining begins, an ore pass is usually drilled from a lower to a higher elevation. Jumbos selectively drill holes into the roof of the drift and fill them with
Sublevel open stoping: design of the O640, L651 and N 659 sub level open stopes in the 3000 orebod y of the Mount Isa copper mines, Queensland, Australia. Department of Mining, University of ...
Sublevel caving: unearthing new opportunities . The known resource base for base metals is increasingly comprised of large scale, low-grade deposits, situated at increasing depths where underground cave 1 mining methods are the only viable means of economic extraction.. In the spectrum of underground mining methods, caving methods are the lowest cost and most productive.
Sublevel Open Stoping originated in the early 1900's in iron ore mines in Michigan, USA. It was developed over the years from a method originally known as short hole bench and train mining.Generally a large scale open stoping method, it is often referred to as long hole or blast hole stoping. A Typical Sublevel Open Stoping Operation.