sublevel stoping mining method

Definition of sublevel stoping - mindat.org glossary

A mining method involving overhand, underhand, and shrinkage stoping. Its characteristic feature is the use of sublevels. The sublevels are worked simultaneously, the lowest on a given block being farthest advanced and the subs above following one another at short intervals. The uppermost sublevel underneath the cover is partly caved.

Shrinkage Stope Mining, Mining Methods, Mining Techniques ...

Shrinkage stoping is rather hard to mechanize; in addition, an important period may elapse amid the commencements of mining in the stope and the last withdrawal of all the broken ore. The solitary principal basis of tantalum mineral concentrates is the manufacture by Sons of Gwalia Ltd. from its Greenbushes and Wodgina mines in Western Australia.

SubLevel Stoping - Introduction to Sublevel Stoping

INTRODUCTION The sublevel stoping mining method is usually applied to a relatively steeply dipping, competent ore body, surrounded by competent wall rock. Ore is produced by drilling and blasting longholes, which can range from 50 mm (2 in.) to 200 mm (7% in.) diam, with lengths up to 90 m (300 ft).

Sublevel caving | Article about sublevel caving by The ...

Selection of preferred mining methods tended towards non-entry methods such as block caving and sublevel caving, allowing high levels of automation, control and monitoring, thereby minimising the number of people required to work in potentially hazardous conditions.

Underground Mining Methods and Equipment

1. Underground Mining Methods 1.1. Classification of Underground Mining Methods 1.2. Underground Operations in General 1.3. Room-and-pillar Mining 1.4. Sublevel Stoping 1.5. Cut-and-fill Stoping 1.6. Longwall Mining 1.7. Sublevel Caving 1.8. Block Caving 2. Underground Mining Machinery Glossary Bibliography Biographical Sketches Summary The ...

Stoping Mining Methods - Metallurgist & Mineral Processing ...

Stoping Methods. A classification of stoping methods based upon method of support was adopted by the Mining Division of the Bureau of Mines in 1928. This classification has been used ever since as a basis for describing methods in its publications dealing with mining methods and costs and is as follows: Classification of stoping methods

Sublevel Stoping - YouTube

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SUB-LEVEL OPEN STOPING: DESIGN OF THE O640, L651 …

sub-level open stoping and the design process followed. The objective here is to present a design methodology applicable to sublevel open stoping, but also to then bridge the gap between theory and practice by applying said methodology to an actual design example.

Study on Sublevel Open Stoping with Subsequent Backfilling ...

This paper discusses the stope parameters of the sublevel subsequent filling stage in Daye Iron Shizishan section. According to the similar material simulation technology, which is the main means, displacement monitoring and internal stress monitoring, several conclusions are summarized as bellow: When the parameter of the room and pillar is 18m, the underground mining is safe and steady.

Stoping - Wikipedia

Sublevel Caving . Sublevel Caving is one of many different methods for underground hard rock mining. It is a large-scale mining method suitable for large ore bodies with a steep dip and a rock mass with a host rock in the hanging wall will fracture under controlled conditions.

Types of Mining Methods | Sell Side Handbook

Long-Hole Sublevel Stoping. 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, …

What is the difference between sublevel stopping and ...

For sublevel stoping the ore body and walls should be strong enough to support open stoping. In this method, the ore is excavated in open stopes, retreating from one end of the stope toward the other. The orebody is developed first by a series of ...

(PDF) Underground mining Methods - ResearchGate

Shrinkage stoping may be termed a " classic" mining method, having been perhaps the most popular mining method for mos t of the past century . It has largely been replaced by mechaniz ed ...

Economic Comparison of Drilling Systems in Sublevel ...

Economic Comparison of Drilling Systems in Sublevel Stoping Method KAZEM ORAEE1 and AMIR HOUSSAIN BANGIAN*2 Drilling constitutes an important part of the production process in sublevel stoping method and up to 50% of the total costs can be attributed to this element. With the advent of recently developed sophisticated and expensive drilling ...

12. Mining methods and method selection

12.4 Underground mining method •Sublevel open stoping-Ore is fragmented in the stopeusing ring-drilled or long parallel blast holes, and moved to the drawpointsfor extraction.-Bigholeopen stopinguses longer blast holes with larger diameter of 140~165 mm: sublevel spacing increases from typically 40 …

Transverse longhole stoping - QueensMineDesignWiki

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.

(PDF) Sublevel Stoping Underground Mining Methods

Sublevel stoping: configuration method in stopes where the ore is detonated by drilling a fan or parallel; large part of the ore is removed from the stope as it is being detonated, leaving open stope.

Underground mining (hard rock) - Wikipedia

Shrinkage stoping is a short-hole mining method which is suitable for steeply dipping orebodies. This method is similar to cut and fill mining with the exception that after being blasted, broken ore is left in the stope where it is used to support the surrounding rock and as a platform from which to work.

Sublevel stoping | Article about sublevel stoping by The ...

Alternative mining pilot tests in narrow veins: The Company is currently carrying out pilot testing of mining methods for narrow veins, using the sublevel stoping and conventional mining cut and fill methods, in order to determine the optimal mining method for these types of structures.

Underground Mining Methods: Engineering Fundamentals and ...

Underground Mining Methods presents the latest principles and techniques in use today. Reflecting the international and diverse nature of the industry, a series of mining case studies is presented covering the commodity range from iron ore to diamonds extracted by operations located in all corners of the world. Industry experts have contributed 77 chapters.

POSSIBILITY OF APPLICATION OF BACKFILL METHODS WITH ...

optimum mining method of this ore relative. In addition to the block caving and sublevel method with ore and overburden rocks collapses should be considered and sublevel and open stope mining methods with backfilling the excavated area. Possibility of application of backfill methods …

Underground mining methods handbook (Book) | OSTI.GOV

The first phase, completed in July, 1975, recommended four mining methods for the phase II study. The four methods are: chamber and pillar mining, sublevel stoping with spent shale backfill, sublevel stoping with full subsidence, and block caving using load haul dump (LHD).

(PDF) Economic Comparison of Drilling Systems in Sublevel ...

Also in sublevel stoping method, which is one of the most useful hard-rock underground mining methods, it is possible to execute several production drilling systems depend on ore body's geometry and production planning with a wide range of different production costs.

Caving Underground Mining Methods (longwall, Sublevel ...

Oct 23, 2014· Caving Underground Mining Methods (longwall, Sublevel caving, & Block caving) 1. 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.

Sub-level open stoping - QueensMineDesignWiki

Sublevel Stoping. This method, described by F. W. Sperr in the Engineering and Minting Journal of June 5, 1912, and by P. B. McDonald in the Mining and Scientific Press of July 5, 1913, is really a combination of several different methods of stoping.

Stoping | mining | Britannica.com

Stoping, in mining engineering, the opening of large underground rooms, or stopes, by the excavation of ore.Stoping is practiced in underground mineral mining when the surrounding rock is strong enough to permit the drilling, blasting, and removal of ore without caving.In mines where the rock requires no artificial support, the operation is known as open stoping.

Mining - Blasthole stoping | Britannica.com

Mining massive deposits. Several of the methods described above (e.g., blasthole stoping, sublevel caving) can be applied to the extraction of massive deposits, but the method specifically developed for such deposits is called panel/block caving. It is used under the following conditions: (1) large ore bodies of steep dip, (2) massive ore ...