sublevel stoping mining method sts

Cost of Stoping for Underground Mining

Stoping cost is one of the largest of the items comprising the total cost of producing ore. The cost per ton of ore mined is important but may be overemphasized if the more important cost, that per unit of metal recovered, is thereby overlooked. A given stoping method may give a low cost

Economic Comparison of Drilling Systems in Sublevel ...

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. Therefore applying sublevel stoping method economically should

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

As a final point, by studding of dissimilar production costs, we could decide about selecting the most doable system. 2. Sublevel stoping method in brief Sublevel stoping is one of the most useful underground mining methods in steeply dipping hard-rock ore bodies. Herein mining method existence of a high plunge length in the ore body is essential.

8.3.3: Sublevel (Open) Stoping ABC 123: Testing Site ...

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.

(PDF) Sublevel Stoping Underground Mining Methods

Shrinkage stoping Ascending method of mining Advantages and Disadvantages Vertical Crater Retreat stoping Introduction Application Developmental sequence of stopes Production How Cratering Works ...

Sublevel stoping..Underground mining methods

Oct 22, 2014  Sublevel stoping..Underground mining methods 1. Hassan Z. Harraz [email protected] 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.

Economic Comparison of Drilling Systems in Sublevel ...

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. Therefore applying sublevel stoping method economically should

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

As a final point, by studding of dissimilar production costs, we could decide about selecting the most doable system. 2. Sublevel stoping method in brief Sublevel stoping is one of the most useful underground mining methods in steeply dipping hard-rock ore bodies. Herein mining method existence of a high plunge length in the ore body is essential.

Considerations for Sublevel Open Stoping - OneMine

The blasted ore gravitates to the bottom of the stope and is collqcted through drawpoints. Fig. 1 illustrates a typical sublevel stoping mine. The method requires extensive ore body development with relatively high capital expenditures. How- ever, much of the development is in ore, and production costs are comparatively low.

Design and dimensioning of sublevel stoping for extraction ...

The mine is currently operating at 1150mL using sublevel mining method for copper ore bodies extraction. It intends to descend to 1500mL. There are various critical factors that influence a safe and economic design and dimensioning of a sublevel stoping method for underground extraction of metalliferous deposit.

Definition of sublevel stoping - Mindat.org

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.

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 STOPING_2018.pdf - MINE 411 Underground Mining ...

MINE 411 Underground Mining Methods Equipment Instructor: Prof. Raymond S. Suglo 1 SUBLEVEL STOPING (BLASTHOLE STOPING OR LONGHOLE STOPING) Areas of Application The method is applicable to steep or highly dipping large orebodies or wide veins where the ore is strong, the country rocks are strong and competent (because the method relies on gravity

Mining methods - SlideShare

Oct 23, 2011  SELF SUPPORTED METHODS 15. Sublevel stoping 16. Sublevel stoping 17. Sublevel stoping 18. Sublevel stoping in thick orebody A-a B-b C-c A A C C B B 19. Large open stope mining 20. Large open stope mining 21. Large open stope mining 22. Large open stope mining with primary and secondary stopes 23.

Major Mines Projects Freda Rebecca Mine

A sub-level stoping mining method is predominantly employed and the ore is trucked to surface using a variety of articulated dump trucks. One-way haul distances are of the order of 3-3.7km and the cycle time for trucking is typically 45 min. Adaptations of this mining method as well as room and pillar mining are undertaken depending on the ...

Major Mines Projects Prominent Hill Mine

The upper and lower limits of the reported Mineral Resource are 123m and 1,399m respectively below the pre-mining topographic surface. Mining Methods Sub-level stoping

Production scheduling optimisation for sublevel stoping ...

Oct 01, 2020  Among underground mining methods, sublevel stoping are a commonly used method in large-scale mining. It is a versatile and productive method that is primarily used for steeply deeping orebodies with regular shape, defined ore

Sublevel stoping mining method - Epiroc - YouTube

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 ...

Sublevel caving - QueensMineDesignWiki

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.

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. ... increased reducing some of the cost disadvantages. 12.4 Underground mining method •Block caving.

Stopping Methods and Costs - Page VII - UNT Digital Library

Report presenting a study of stoping methods and costs and summarizing the data obtained in earlier publications and those obtained during investigations in the field that apply particularly to stoping. ... Sublevel stoping----- 7 ... Steps in development of mining processes, Mascot, Tenn----- 55 20. Open stoping

Considerations for Sublevel Open Stoping - OneMine

The blasted ore gravitates to the bottom of the stope and is collqcted through drawpoints. Fig. 1 illustrates a typical sublevel stoping mine. The method requires extensive ore body development with relatively high capital expenditures. How- ever, much of the development is in ore, and production costs are comparatively low.

Design and dimensioning of sublevel stoping for extraction ...

The mine is currently operating at 1150mL using sublevel mining method for copper ore bodies extraction. It intends to descend to 1500mL. There are various critical factors that influence a safe and economic design and dimensioning of a sublevel stoping method for underground extraction of metalliferous deposit.

COSTS AND COST ESTIMATION Chapter

For mining methods unsuitable for narrow stopes, where the slope width W is typically greater than 20 ft (6 m), % 200 • " TOIlS PER DAY MINEO '000 000 M Fig. 6.3.2. Underground mine crew for various stoping methods and ore widths. Nmn 0.75 To.7 for sublevel stoping mines with blastholes of small diameter (1 to 2 in. or 25 to 50 mm)

Definition of sublevel stoping - Mindat.org

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.

Production scheduling optimisation for sublevel stoping ...

Oct 01, 2020  Among underground mining methods, sublevel stoping are a commonly used method in large-scale mining. It is a versatile and productive method that is primarily used for steeply deeping orebodies with regular shape, defined ore boundaries and competent ore and host rock.

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 Stoping Mining Method - YouTube

Feb 10, 2018  Black Diamond Drilling Services AustraliaDatabase

Mining - Blasthole stoping Britannica

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 bodies of large vertical extension, (3) rock that will ...

Major Mines Projects Prominent Hill Mine

The upper and lower limits of the reported Mineral Resource are 123m and 1,399m respectively below the pre-mining topographic surface. Mining Methods Sub-level stoping

Trends in Australian Underground Mining Costs – AMC ...

Mines less than 0.25 Mtpa, where narrow-vein or otherwise more labour intensive methods are used. Mines greater than 0.25 Mtpa, which generally use efficient sublevel open stoping methods. The unit cost in small mines has increased at an average $6.50/t per year, while the increase for large mines has been $3.00/t per year, over the 36 year period.

(PDF) Underground mining Methods - ResearchGate

Long-hole stoping is a highly selective and productive method of mining Long -hole stoping can cater for varying ore thicknesses and dips (0 - 90 o ).

Mathematical modeling of economic comparison of drilling ...

Methods in Sublevel Stoping Kazem Oraee1, Amir Houssain Bangian*2and A. Parhizkar3 Sublevel stoping is an underground mining method which has a low level of production cost. As well main part of the production cost is related to choosing of the drilling method in each stope. The main

Types of Mining Methods Sell Side Handbook

Mar 09, 2018  Costs tend to vary depending on drilling and blasting designs with more costly methods leading to higher ore recovery. Sublevel stoping (and its variations) is one of the most popular mining method and accounts for approximately 75% of the methods used in mines across Canada. There are several variations of long-hole sublevel stoping.