sub level mining method

(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

Sublevel stoping..Underground mining methods

2014-10-22 · Sublevel stoping..Underground mining methods 1. Hassan Z. Harraz [email protected] 2014- 2015 This material is intended for use in lectures, presentations and as

Description of mining methods (step by step)

Primary Mining Method Sub-level long-hole retreat with backfill. Information. The narrow mining from the Walters zone represents only a small part of the

Philex gets OK to use sub-level cave mining method for ...

Sub-level cave mining is a mining method that starts at the top of the orebody and develops downward. Ore is mined from sub-levels with regular intervals.

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

2014-12-10 · Department: Mining Engineering University: University of Pretoria Degree: M.Eng (Mining Engineering) This dissertation will explore the process followed in the

Underground Mining Methods - UFRGS

2009-12-7 · a level (compare raise). 1.3 MINING METHODS 1.3.1 Introduction Once an ore body has been probed and outlined and sufficient information has been collected to

Types of Underground Mining Method Comparison

2017-3-16 · 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. It finds

(PDF) Underground mining Methods - ResearchGate

Underground Mining Methods. Soft rock Mining Methods. Blast mining. Shortwall mining. Coal Skimming (or Sink and Fl oat) method. Hard rock Mining

(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 ...

sublevel caving mining method ppt

Sub-level caving. This method owes the first part of its name to the fact that work is carried out on intermediate levels (that is, sub-levels) between the main production levels. It follows the same basic principles as the block caving mining method, but the caves are smaller in size and not as long lasting. This method of mining is quicker to.

Description of mining methods (step by step)

Primary Mining Method Sub-level long-hole retreat with backfill. Information. The narrow mining from the Walters zone represents only a small part of the production and is rather recent. The technical services are still working to calibrate the ideal dimension of a stope. Some stopes are opened more than two levels high thus creating dilution ...

sublevel stoping mining method ppt

Sub level stoping · Introducción Underground Mining Methods. 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. It provides required. Get Price

Philex gets OK to use sub-level cave mining method for ...

Sub-level cave mining is a mining method that starts at the top of the orebody and develops downward. Ore is mined from sub-levels with regular intervals. MGB’s approval of the mining method includes the three-year development and utilization work program on the mine from the second half of 2019 to the first half of 2022, as well as the ...

Underground Sub-level Caving Recommences at Big Bell

Underground Sub-level Caving Recommences at Big Bell _____ Highlights Underground sub-level cave mining recommences at Big Bell New extraction method and significantly enhanced ground support reduces geotechnical risk First mass cave blast breaks approximately 103,000 tonnes at 3.0g/t over 3 levels (510/535/560)

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

2014-12-10 · Department: Mining Engineering University: University of Pretoria Degree: M.Eng (Mining Engineering) This dissertation will explore the process followed in the design of a sub-level open stope (SLOS) by using examples of actual stopes scheduled to

Types of Underground Mining Method Comparison

2017-3-16 · 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. It finds application only when it is necessary to mine a lens of good ore below a level and it is

Underground Mining Methods and Equipment

2020-8-25 · UNESCO – EOLSS SAMPLE CHAPTERS CIVIL ENGINEERING – Vol. II - Underground Mining Methods and Equipment - S. Okubo and J. Yamatomi ©Encyclopedia of Life Support Systems (EOLSS) 2. Strength of the hanging wall, footwall, and ore body. 3. Economic value of the ore and grade distribution within the deposit.

(PDF) Underground mining Methods - ResearchGate

Underground Mining Methods. Soft rock Mining Methods. Blast mining. Shortwall mining. Coal Skimming (or Sink and Fl oat) method. Hard rock Mining Methods. Stoping. 1) Room and pillar. 2) Bench and ...

sublevel caving mining method ppt

Philex gets OK to use sub-level cave mining method for ...

sublevel stoping mining method ppt

Our underground mines - LKAB

Sub-level caving is an effective mining method for steep ore bodies, allowing maximum extraction from the ore body with a high degree of safety. The mining in the underground mines takes place in a 'drill-and-blast cycle', i.e. a process that includes activities ranging from

The sublevel stoping mining method is... - Atlas Copco ...

Atlas Copco Australia. October 15, 2017 ·. The sublevel stoping mining method is commonly used 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

Digging deeper: Mining methods explained | Anglo

Large scale mechanised mining methods we use include: long-wall mining, where a long wall of coal is mined in a single slice, usually by a large machine. sub-level-caving, where levels of the ore are blasted by explosives; and ; block caving, where large areas of the ore body are blasted and then extracted with the assistance of gravity.

Mining Stope Development Method

2017-3-30 · With this method of stoping, it is usually necessary to run a through-raise in each stope section to the level above before stoping begins, to provide a means for introducing waste filling and for ventilation of the stope. These raises serve also as a base from which to

Underground Sub-level Caving Recommences at Big Bell

Underground Mining Methods and Equipment

Underground Mining Methods - UFRGS

2009-12-7 · a level (compare raise). 1.3 MINING METHODS 1.3.1 Introduction Once an ore body has been probed and outlined and sufficient information has been collected to warrant further analysis, the important process of selecting the most appropriate method or methods of mining can begin. At this stage, the selection is