sublevel open stoping

StopingWikipedia

Stoping is the process of extracting the desired ore or other mineral from an underground mine, leaving behind an open space known as a stope. Stoping is used when the country rock is sufficiently strong not to collapse into the stope, although in most cases artificial support is also provided.. The earliest forms of stoping were conducted with hand tools or by fire-setting later gunpowder

Open stoping mining Britannica

Learn about this topic in these articles methods of stoping. In stoping the operation is known as open stoping. A common open-stoping method is room-and-pillar mining, in which pillars of ore are left standing to support the rock over a flat-lying ore body.

sublevel stopingautorijschool-desoet

The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability .

POSSIBILITY OF APPLICATION OF BACKFILL METHODS WITH

Figure 3Sublevel open stoping method (, 2007) 3.2. Bighole stoping method Bighole stoping is an up-scaled variant of sublevel open stoping, using longer, larger-diameter DTH blastholes, ranging from 140 mm to 165 mm. Blast patterns are similar to sublevel open stoping, but with holes up to 100 m long. However, the risk of

Sub Level Open StopingHow is Sub Level Open Stoping

Disclaimer. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.

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.

Ebook Geotechnical Design For Sublevel Open Stoping as PDF

Geotechnical Design For Sublevel Open Stoping Top results of your surfing Geotechnical Design For Sublevel Open Stoping Start Download Portable Document Format (PDF) and E-books (Electronic Books) Free Online Rating News 2016/2017 is books that can provide inspiration, insight, knowledge to

SubLevel StopingIntroduction to Sublevel Stoping

When designing a sublevel stoping production sys- tem, it should be kept in mind that production rates from conventional sublevel stopes vary widely through- out the life of the stope. Early production is at a low rate, coming only from the drawpoints near the slot,

SubLevel StopingIntroduction to Sublevel Stoping

When designing a sublevel stoping production sys- tem, it should be kept in mind that production rates from conventional sublevel stopes vary widely through- out the life of the stope. Early production is at a low rate, coming only from the drawpoints near the slot,

Njiir

In sublevel stoping, drilling and blasting is undertaken from drilling drives located on sublevels strategically placed over the height of a stope. Because of the limited cablebolt reinforcement that can be provided at the exposed stope walls, the excavations must be designed to be inherently stable.

Sub Level Open StopingHow is Sub Level Open Stoping

Disclaimer. All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only.

Considerations for Sublevel Open Stopingonemine

Sublevel stoping generally is a large-scale open stoping method. It sometimes is referred to as long-hole or blasthole stoping. This method usually is applied to strong ore bodies that require minimal support and are surrounded by strong country rock.

(PDF) Open Stope Mining in CanadaResearchGate

Open stope mining is the most common mining method employed in underground, hard rock mines in Canada. It is characterised by relatively small, single lift stopes (20,000 to 100,000 tonnes), and

Geotechnical Design for Sublevel Open StopingCRC Press Book

The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a

Blast Hole Open Stoping Term GlossaryCSIMarket

Blast Hole Open Stoping. Manufacturing Term. A low cost bulk method of mining suitable for large, regularly shaped and steeply dipping ore bodies. Blast holes are drilled in a fan-like pattern into the ore body and are then loaded with explosives and detonated. The broken ore is either removed by load-haul-dump machines or by rail cars.

Stoping mining Britannica

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 mines where the rock requires no artificial support, the operation is known as open stoping.

The sublevel stoping mining method is

Sublevel stoping is a commonly used method in large scale mining. It is a versatile and productive method that is primarily used for large orebodies with a steep dip, regular shape and defined ore boundaries. There are different variations of the method depending on the shape of the orebody.

Sub Level CavingRana Gruber

Sub level caving. After more than 30 years of open pit mining, Rana Gruber AS started underground mining using the sublevel open stoping method at the Kvannevann Mine in 2000. The mining has been continuously improved and further developed to suit the difficult

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.

Ebook Geotechnical Design For Sublevel Open Stoping as PDF

Geotechnical Design For Sublevel Open Stoping Top results of your surfing Geotechnical Design For Sublevel Open Stoping Start Download Portable Document Format (PDF) and E-books (Electronic Books) Free Online Rating News 2016/2017 is books that can provide inspiration, insight, knowledge to

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Underground Mining Methods and Equipment

• Shrinkage stoping • Sublevel stoping Of the unsupported methods, room-and-pillar mining is employed for extraction of flat-dipping and tabular deposits, whereas shrinkage and sublevel stoping are applied to vertical or steeply inclined ore bodies. Shrinkage stoping has in the past been very popular, particularly in non-coal mining.

Geotechnical Design For Sublevel Open Stoping Download

geotechnical design for sublevel open stoping Download geotechnical design for sublevel open stoping or read online books in PDF, EPUB, Tuebl, and Mobi Format. Click Download or Read Online button to get geotechnical design for sublevel open stoping book now. This site is like a library, Use search box in the widget to get ebook that you want.

Sub-level open stopingQueensMineDesignWiki

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.

Geotechnical Design for Sublevel Open Stoping Taylor

Apr 01, 2014 · The first comprehensive work on one of the most important underground mining methods worldwide, Geotechnical Design for Sublevel Open Stoping presents topics according to the conventional sublevel stoping process used by most mining houses, in which a sublevel stoping geometry is chosen for a particular mining method, equipment availability, and wo

Underground Mining MethodsEngineering Fundamentals and

Sublevel Open Stoping-Design and Planning at the Olympic Dam Mine. View Section, 27. Cannington Mine-30 Million Ounces of Silver per Year from a 300-m Cube. View Section, 28. Sublevel Stoping at Echo Bay's Lamefoot Mine, Republic, Wash. View Section, 29. Sublevel Open Stoping at El Soldado Mine A Geomechanic Challenge

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.

POSSIBILITY OF APPLICATION OF BACKFILL METHODS WITH

Figure 3Sublevel open stoping method (, 2007) 3.2. Bighole stoping method Bighole stoping is an up-scaled variant of sublevel open stoping, using longer, larger-diameter DTH blastholes, ranging from 140 mm to 165 mm. Blast patterns are similar to sublevel open stoping, but with holes up to 100 m long. However, the risk of

KEEPING OPEN OF UNDERGROUND BLAST HOLES R

KEEPING OPEN OF UNDERGROUND BLAST HOLES R Hawker Minova Australia D O'Connor Minova RSA Abstract Underground mining of base metals like copper often uses massive mining methods such as sublevel open stoping. A feature of these mining operations is the drilling of "rings" of blastholes, typically 60120 mm in diameter and often over 15

The sublevel stoping mining method is

Sublevel stoping is a commonly used method in large scale mining. It is a versatile and productive method that is primarily used for large orebodies with a steep dip, regular shape and defined ore boundaries. There are different variations of the method depending on the shape of the orebody.

Transverse longhole stopingQueensMineDesignWiki

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.

4. History of underground miningSAIMM

Sub-level caving, sub-level open stoping, the Janelid method (analogous to an inclined cave) and block caving were all considered as mining methods. Sub-level open stoping was introduced in a trial mining block but, after failure of the method due to premature caving ofthe sill,

GLOBAL EXTRACTION SEQUENCES IN SUBLEVEL STOPING

A review of the most widely used global extraction sequences in sublevel is undertaken. The review includes techniques used to extract massive as well as single or multiple steeply dipping tabular orebodies. The paper also deals with thick flat lying orebodies suitable for open stoping. Techniques used to minimize the effect of stress re-

Sublevel caving Article about sublevel caving by The

Traditional mining methods for hanging-wall ore-body include surface mining and back-fill stoping method such as that in the Fenghuangshan Iron Mine of China and the Kidd Creek Zinc-copper Mine of Canada, the sublevel caving method such as that in the Yeshan Iron Mine and the Longshou Mine of China, and the sublevel open stoping and caving mining method such as that used by Liu et al.

Underground Mining Methods and Equipment

• Shrinkage stoping • Sublevel stoping Of the unsupported methods, room-and-pillar mining is employed for extraction of flat-dipping and tabular deposits, whereas shrinkage and sublevel stoping are applied to vertical or steeply inclined ore bodies. Shrinkage stoping has in the past been very popular, particularly in non-coal mining.

Njiir

In sublevel stoping, drilling and blasting is undertaken from drilling drives located on sublevels strategically placed over the height of a stope. Because of the limited cablebolt reinforcement that can be provided at the exposed stope walls, the excavations must be designed to be inherently stable.