sublevel caving

sublevel caving

Sublevel Caving Technique | Mining | Drilling Rig

Oct 02, 2013· Source: Mining Magazine, September 2013. Sub-level caving is a highly efficient, top-down, underground bulk mining method. Recent developments in sub-level cave mining have advanced the understanding of the technique and its production performance, which allow it to now be considered as a highly viable alternative to open stoping and, in some cases, even to block caving.

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma -

Apr 26, 2013· sublevel caving 1. Metodo de minado porhundimiento de subniveles SLCCastro Cuya Lincoln I 2. Introducción SLC es un metodo masivo de minado basado en la utilizacion del flujogravitacional del mineral disparado y del desmonte derrumbado. SLC es la evolucion natural del tajeo por subniveles.

Underground Mining Methods and Equipment

Sublevel Caving - SLC . 9. Laurentian University School of Engineering . Page & Bull, 2001 • As ore is pulled from the blasted ring, it will be replaced with broken waste • This waste will be mixed with some of the ore as the chocked material is moving • Top down, flexible, low capital,

Sublevel Caving - Oraee

Jun 25, 2010· Sublevel caving techniqueSimplicity and low cost are the essence up-holes accurate with less than 2% deviation. Apart, blasting pattern used has also plays very important role.

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma -

Steps in Sublevel Caving 1. Drifting the sublevels (up to 20 percent can be recovered during development) 2.Blasting- starts at the uppermost sublevel at hanging wall-blasting of fan breaks ore causing it to cave into the drift. 3. Ore extraction allows several drifts to be operated on the same sublevel.

(PDF) Longwall; Sublevel Caving and Block Caving ...

Recently, Sublevel Caving mines have increased lateral spacing interval drifts and sublevels. This has increased production, but also increased dilution.

Definition of sublevel caving - Mindat

Sub level caving method allows working in parallel on different sub levels in the mine. This means that continuous excavation works can be on-going at one sub level without interfering with another. Project Sublevel Caving was carried out during the years 2009 and 2011, with a budget on 450 million NOK.

sublevel caving - French translation – Linguee

A hard magnetic alloy free of rare earths, characterised by that the alloy includes, by atomic percent, 14-20% of a transition metal having two unpaired electrons in the outermost d sublevel, B7-1.3xSix, with x being 1-5, and the remainder essentially cobalt, said alloy having a microstructure substantially devoid of nonmagnetic phases and consisting of (Co-Si)23TM6 and (Co-Si)11TM2 magnetic ...

sublevel caving - French translation – Linguee

Feb 10, 2018· Black Diamond Drilling Services AustraliaDatabase

Design methodology for underground ring blasting

Dec 18, 2017· Having joined the GEOVIA Caving Business Unit in 2014, Christina is focused on solution implementations at client sites and software training. She has worked on many different block caving projects, from order of magnitude to feasibility studies, to sub-level caving projects and software development testing. Christina is based in Vancouver, Canada.

Sublevel cave ore production starts at Syama

Source: Mining Magazine, September 2013. Sub-level caving is a highly efficient, top-down, underground bulk mining method. Recent developments in sub-level cave mining have advanced the understanding of the technique and its production performance, which allow it to now be considered as a highly viable alternative to open stoping and, in some cases, even to block caving.

sublevel caving - slideshare

Sublevel caving (SLC) is a mass mining method based upon the utilisation of gravity flow of blasted ore and caved waste rock [1]. The method functions on the principle that ore is fragmented by blasting, while the overlying host rock fractures and caves under

Design & Operating Principles in Caving Methods

SUBLEVEL CAVING. General Details of the Mine. 1. High strata: 30-100 m 2. Mineral: Calcite 3. Inclination of strata: 40º maximum Tools for Suitable Mining Method Selection – Hartman (1987) Tools for Suitable Mining Method Selection – Nicholas Perico Euskadi Mine: General Shape: Tabular Ore Thickness: 30-100 m Ore Plunge: 40 degree Grade Distribution: Uniform Depth: 100 m RCD: Calcite …

Introducing Footprint Finder for Sub-Level Caving ...

El método sublevel caving propuesto considera tres subniveles separados por 14 metros desde el piso al techo del siguiente subnivel con un ancho de veta de 15 metros, por lo que se elaboró una malla de perforación en abanico con 7 tiros de 2,5" de diámetro, 45° de inclinación máxima (Figura 1).

Sublevel caving: Engineered to Perform - Elexon Mining

Sublevel caving comprises a series of repetitive activities and is ideally suited to automation. Syama is well suited to the sublevel caving mining method because of its scale, width, orientation, and uniformity of grade. Unlike other bottom-up caving methods (block cave, panel cave), sublevel cave mining is a top-down method and therefore does ...

Sublevel Caving - Informes - Felipe Palomino

A hard magnetic alloy free of rare earths, characterised by that the alloy includes, by atomic percent, 14-20% of a transition metal having two unpaired electrons in the outermost d sublevel, B7-1.3xSix, with x being 1-5, and the remainder essentially cobalt, said alloy having a microstructure substantially devoid of nonmagnetic phases and consisting of (Co-Si)23TM6 and (Co-Si)11TM2 magnetic ...

- Sublevel Caving Mining Method - YouTube

Jun 25, 2010· Sublevel caving techniqueSimplicity and low cost are the essence up-holes accurate with less than 2% deviation. Apart, blasting pattern used has also plays very important role.

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma -

cave mining handbook page 1 of 138 contents page 1.0 introduction 2 2.0 geological investigations 4 3.0 rock mass classification 9 4.0 geotechnical investigations 11 5.0 mining limits 14 6.0 caveability 16 7.0 air blasts 26 8.0 rockbursts 29 9.0 mud flow & water 33 ...

The Block Cave Mining Method - UKEssays

• Sublevel caving • Block caving Longwall mining is used in horizontal, tabular deposits (mainly coal), while the others have applications in inclined or vertical, massive deposits, a lmost exclusively metallic or nonmetallic. Because the exploitation openings are intentionally destroyed in the

Sublevel Caving Technique: Simplicity and Low Cost are the ...

Definition of sublevel caving. i. A stoping method in which relatively thin blocks of ore are caused to cave by successively undermining small panels. The ore deposit is developed by a series of sublevels spaced at vertical intervals of 18 to 25 ft or 30 ft (5.5 to 7.6 m or 9.1 m) and occasionally more. Usually only one or two sublevels are ...

Definition of sublevel caving - Mindat

The following article contains a summary of the results obtained by theoretical calculations, model experiments and large-scale tests concerned with sublevel caving problems.

Sublevel Caving: Underground Mine Design Flash Cards: Koofers

Sublevel Caving. In this method, the stope is divided into sublevels, fairly close to each other, normally with 8-15m vertical interval between each two adjacent ones. These sublevels are called sublevel drifts or production drifts. Production is carried out from the sublevel drifts by means of long holes above the end of the production drifts.