Sublevel Caving Technique | Mining | Drilling Rig

Longwall Longwall in coal Longwall in Hard Rock Sublevel Caving Characteristics of the ore body and mining method Development Production Equipments Used Block Caving Introduction Historical ...

Sublevel caving - QueensMineDesignWiki

SUBLEVEL CAVING 135 The loosening of the granular material brought about in the limit ellipsoid can be described by the loosening factor a where Ec a -- Eo -- Ely (6) and Ec and EN are the volumes of the corresponding ellipsoids. The value of the loosening factor for broken material varies from 1.066 to 1.100.

Method Sublevel Caving | Mining | Rock (Geology) | Free 30 ...

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 - ScienceDirect

The extrathick coal seam by sublevel caving with more than 3.5 m bottom cutting height has obvious technical advantages, such as increased cutting height, optimized caving ratio, increased caving by mining pressure, increased ventilation section of working face, and reduced ventilation resistance.

Sublevel caving | Article about sublevel caving by The ...

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.

Sublevel stoping..Underground mining methods

Sublevel Caving Technique - Free download as PDF File (.pdf) or read online for free. An underground mining method used in large, steeply dipping orebodies where the wall rock is of an incompetent nature. Parallel drives are developed in the ore on equally spaced levels. The ore is then drilled and blasted using longholes between levels, often in a circular or fan pattern, on retreat.

Definition of sublevel caving - Mindat

Sublevel caving (SLC) is an underground mass mining method used for extracting different types of ore from the earth crust. Different unit operations (drilling, blasting, loading and transportation) are performed in isolation with each other which leads to standardized procedures …

Sublevel caving | Article about sublevel caving by The ...

Sublevel Caving Safety. 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.

Sub-level caving - Wassara

Sub-Level Caving Subsidence reaches surface at the Ridgeway underground mine. Using this method, mining is planned to extract rock from the stopes without filling the voids; this allows the wall rocks to cave in to the extracted stope after all the ore has been removed. The stope is …

Evolution of sublevel caving – safety improvement through ...

Due to the nature of the orientation and shape of a typical ore body that is being mined with sub-level caving, the mine design truly benefits from the advantages of using the Wassara hammer. The length of the blast holes can easily be increased to way beyond 60 …

Solving the Problems of Precharging Sublevel Caving Rings ...

Parameters influencing sublevel caving recovery were identified using a combination of self organising maps (machine learning neural networks) and statistics – these advanced analytical methods are available through ProdFinder TM .The analyses are based upon recovery data for 20,000 metal markers installed at the mine over three years, in the ...

Keeping up with caving - REDPATH MINING

To deeply understand the mechanism of the rock mass caving and associated surface subsidence during sublevel caving mining, the Xiaowanggou iron mine was selected as an engineering project case study. The study area was analyzed by means of an in situ geological investigation and numerical simulation. First, a borehole television (BHTV) system and a GPS monitoring system were used to monitor ...

Petra Diamonds | How are diamonds mined by Petra?

METODO SUBLEVEL CAVING En épocas recientes, el método ha sido adaptado a roca de mayor competencia que requiere perforación y tronadura. Explotación minera: Es el proceso o conjunto de procesos por el cual extraemos un material natural terrestre del que podemos obtener un

Deswik.Caving - Deswik

Oct 22, 2014· Design and operation of caving and sublevel stoping mines. p.. Drawpoints are basic elements of development methods used in sublevel stoping, sublevel caving, block caving, shrinkage, VCR and others. Can be positioned: -in sublevels production when using sublevel caving-; -na base level or ore body, when it is used block caving, sublevel ...

Underground mining (hard rock) - Wikipedia

Jun 25, 2010· Sublevel caving techniqueSimplicity and low cost are the essence Longhole rigs drill the ore section above the drift, in a fan spread pattern. Longhole drilling is a procedure which is done ...

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma -

Sublevel and block caving capability within the same model. Allows for cave propagation within a simulation, fine and alternate particle properties. Small scale calibration . Produces ellipsoidal approximations of draw similar to those seen in reality. Software has been calibrated against many operational mines. ...

Cave Mining - Today's Challenges | SRK Consulting

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.

METODO SUBLEVEL CAVING by juan carlos perez on Prezi Next

The extrathick coal seam by sublevel caving with more than 3.5 m bottom cutting height has obvious technical advantages, such as increased cutting height, optimized caving ratio, increased caving by mining pressure, increased ventilation section of working face, and reduced ventilation resistance.

Sub Level Caving - YouTube

Other articles where Sublevel caving is discussed: 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. The second half of the name derives from the caving of the hanging wall and…


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