sub level mining method

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.

Sublevel Caving: Underground Mine Design Flash ... - Koofers

Steps in Sublevel Caving: 1. Drifting the sublevels (up to 20 percent can be recovered during development) ... Advantages of Sublevel Caving: selective mining of weak- medium strength ore bodies in weak rock. small ore bodies can be mined. highly mechanized. flexible--can change to mechanized sublevel open stoping. productivity is reached quickly.

Underground Mining Methods and Equipment

stoping, cut-and-fill, longwall mining, sublevel caving, and block caving. The second section describes underground mining equipment, with particular focus on excavation ... The selection of underground mining methods is primarily based on the geological/spatial setting of the deposit. Candidate methods can therefore be chosen and ranked based on

Topic - Sub Level Shrinkage Mining Method

NAP narrows Q2 net loss as it transitions to new mining method. By: Henry Lazenby 6th August 2016 Primary palladium producer North American Palladium has narrowed its second-quarter loss to C$9.9 ...

Sub Level Caving - YouTube

Mar 22, 2007· A method of underground mining operation. A method of underground mining operation. Skip navigation ... Sub Level Caving Burak Misket. Loading... Unsubscribe from Burak Misket?

Sublevel Caving Technique | Mining | Economic Geology

Experience from LKAB, Sweden - Sub-level caving (SLC) is an important mass mining method, used at LKAB. The caved rock or debris at the SLC interface reduces the fragmentation and the swelling of the blasted ring and it dissipates the explosive energy.

sub level mining method - connexionscarhire.co.za

Current longwall mining method applied in the mine The current method used in the above-mentioned mines is a sub-level longwall caving-retreat method In this method . 【Live Chat】 Parameters influencing full scale sublevel caving,

Sub-level open stoping - QueensMineDesignWiki

Sublevel open stoping is a highly mechanized mining method utilizing a wide range of equipment for drilling and mucking. Typically production drilling is carried out by high-efficiency column and arm longhole drills or DTH drill rigs.

Geotechnical Design for Sublevel Open Stoping - CRC Press

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 …

What is the difference between sublevel stopping and ...

Sublevel Caving is a productive mining method where all of the ore is fragmented by blasting and the host rock in the hanging wall of the ore body caves. Once the production drifts have been excavated and reinforced, the opening rays and long hole drilling and ring patterns are completed.

Types of Underground Mining Method Comparison

Methods of mining include stoping, caving, and various methods of working large deposits which, in addition to the method of actually breaking the ore, require elaborate and …

REGISTRATION BROCHURE FOURTH INTERNATIONAL …

The growing popularity of caving methods around the world is largely due to the very low production cost and ... 09:30 Sublevel retreat mining in the subarctic: a case study of the Diavik Diamond Mine PA Lewis, LM Clark, SJ Rowles, CP Auld, CM Petryshen, AP Elderkin, ...

SubLevel Stoping - OneMine

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).

(PDF) Underground mining Methods - ResearchGate

Caving (i.e., Sublevel and Block) mining methods are v aried and versatile an d involve ca ving the ore and/ or the overlying rock. Sub sidence of the surface normally occu rs afterwar d.

Description of mining methods (step by step) - nvp-pgf.org

Primary Mining Method Sub-Level Longhole retreat. Information. DEVELOPMENT SEQUENCE The Diamond hill ore bodies and mine workings are in exceptionally solid unfractured rock and accordingly are amenable to low cost sublevel open stoping methods.

sub level stopping mining method ppt

sub level stopping mining method ppt Underground Mining Methods and Applications. the mineral deposit, mining technology, processing methods, and costs is .. normally, sublevels are used only within stoping areas where they are required for.

Sublevel caving - ScienceDirect

PRINCIPLES AND APPLICATION OF SUBLEVEL CAVING IN METALLIFEROUS MINING THERE is a wide selection of various underground mining methods which can be adapted to the local conditions and to the particular requirements of the orebody concerned and of the surrounding areas.

Sublevel caving | Britannica.com

In mining: Sublevel caving. This method owes the first part of its name to the fact that work is carried out on many intermediate levels (that is, sublevels) between the main levels.

Sublevel Caving Mining Method - Newtrax Technologies Inc.

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.

Sublevel Stoping - RitchieWiki

Sublevel stoping is a method of underground mining method that involves vertical mining in a large, open stope that has been created inside an ore vein. Usually …

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

The method may be used for ore mining in shrinkage stopes, for rising, and for underground construction projects where excavations of considerable vertical height may be needed, like ore and waste bins, crusher rooms, penstocks and tailrace tunnels.

Sublevel retreat mining in the subarctic: a case study of ...

Abstract: Diavik Diamond Mine is located on the subarctic tundra of the Northwest Territories, Canada, 300 km northeast of Yellowknife. When its first two open pits were exhausted in 2012, it completed the full transition to underground mining. Three orebodies are currently being mined underground using two mining methods: blasthole open stoping and sublevel retreat (SLR).

Underground mining (hard rock) - Wikipedia

Cut and fill mining is a method of short-hole mining used in steeply dipping or irregular ore zones, in particular where the hanging wall limits the use of long-hole methods. The ore is mined in horizontal or slightly inclined slices, and then filled with waste rock, sand or tailings .

Caving Underground Mining Methods (longwall, Sublevel ...

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.

Sublevel stoping..Underground mining methods - SlideShare

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.

Sublevel Stoping - YouTube

Jul 09, 2009· Category Education; Song "My Shooter" (Long Edit) Artist Groove Cutter; Album Annex Trax Vol. 11; Licensed to YouTube by NATOarts (on behalf of Track One Recordings); UMPI, ASCAP, AMRA, and 16 ...

Design and Application of Sublevel Stoping Methods ...

Introduction. This course refers to the generic mining method of sublevel stoping. The most commonly used sublevel stoping mining methods are sublevel open stoping, long-hole open stoping or blasthole stoping, and vertical crater retreat (VCR).

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.