sublevel caving

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

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

Sublevel caving Sublevel caving flow Sublevel caving blasting Sublevel caving recovery abstract The literature discusses a number of theoretical small and full scale experimental programs which have aimed at identifying parameters influencing sublevel caving SLC material flow behaviour and therefore ore recovery and dilution

Dec 01 2016· 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

Nov 04 2017· Hundimiento por Bloques अजमेर की विशालकाय मार्बल खान Epic Giant Marble Mines In Sawer Ajmer Rajasthan India - Duration 13 37 SANJEEV KUMAR

-each sublevel has drifts that penetrate the entire ore body 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

Block caving is used to mine massive steeply dipping orebodies typically low grade with high friability An undercut with haulage access is driven under the orebody with drawbells excavated between the top of the haulage level and the bottom of the undercut The drawbells serve as a place for caving …

Block caving is used to mine massive steeply dipping orebodies typically low grade with high friability An undercut with haulage access is driven under the orebody with drawbells excavated between the top of the haulage level and the bottom of the undercut The drawbells serve as a place for caving …

An overview of a wireless blasting system for use in sublevel caving operations that significantly reduces the risk posed to mine workers Sublevel cave SLC mining is breaking ore-bearing rock through blasting and drawing it out under the waste rock that is caving into the void created SLC mines

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…

This method is usually considered as an alternate to sublevel caving when a lower dilution method is needed and where the rock is fairly competent The production for a mine using sublevel stoping can range from 15- 40 tons employee-shift while one stope can produce greater than 25000 tons per month

Oct 02 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

Sub-Level Caving SLC is an important mass mining method involving blasting of ore against granular material in the form of caving debris The debris compaction due to blasting influences the

Mining by Sublevel Caving In sublevel caving relatively thin blocks of ore are caused to cave by successively undermining small panels The ore body is developed by a series of sublevels usually spaced at vertical intervals of 18 to 25 or 30 feet more recently intervals of 50 …

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

Nov 03 2017· Hundimiento por Bloques अजमेर की विशालकाय मार्बल खान Epic Giant Marble Mines In Sawer Ajmer Rajasthan India - Duration 13 37 SANJEEV KUMAR

rock the principal mining systems being sublevel caving sublevel stoping block caving open stopes and pillars and shrinkage stoping As far as quant i t y is concerned sublevel caving is now the most i mport ant met hod with about 25 million tonnes per annum out of which

Mar 22 2007· A method of underground mining operation This feature is not available right now Please try again later

Definition of SUBLEVEL CAVING Method of mining massive ore deposit in which ore is drawn down to a delivery road under-running the deposit and overburden is allowed to cave in the pro

developments from caving research and researchers require a regular platform to present their results and interact with industry practitioners The Australian Centre for Geomechanics looks forward to hosting the Fourth International Symposium on Block and Sublevel Caving in Vancouver in September October 2018

Thank you to all who attended the Caving 2018 Symposium The papers from the Fourth International Symposium on Block and Sublevel Caving are freely downloadable on the ACG s Online Repository

Several technical and economic factors have to be taken into consideration in developing an optimal mining method This paper describes some of the important factors learnt during the evolution of the sublevel cave mining method at Trojan Nickel Mine part of the Bindura Nickel Corporation BNC in Zimbabwe Sublevel caving SLC has been successfully implemented

Sublevel caving has created through its possibilities of standardizing and mechanizing operations and equipment Other advantages are that the method can be adapted to orebodies of different shape size strength etc and especially that working conditions can be made safe and relatively comfortable since all work is carried out in drifts

SubLevel Caving Arranque -El material arrancado se maneja con equipos LHD - A medida que se extrae el mineral tronado el material estéril superpuesto rellena el vacío dejado por la explotación -Necesita el desarrollo de galerías de producción de 4 a 5m de ancho que tienen una

Oct 23 2014· 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

Jun 25 2010· Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible Mining now proceeds underground underneath the …

Caving Methods of Mining There are three distinctive methods of working large deposits that involve in some way the factor of caving Slightly different names are in use but those that are simple as well as descriptive are top slicing sublevel caving and block caving

Jul 04 2017· Sublevel Caving 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 Mining starts at the top of the ore body and progresses downwards in a safe sequence

Sublevel caving techniqueSimplicity and low cost are the essence controlled drilling and blasting Sublevel caving is in many respects simple It can be used in orebodies with very different properties and it is easy to mechanize In sublevel caving ore is developed from a series of sublevels spaced at regular intervals throughout the orebody

Apr 08 2016· The industry perception is that sublevel caving is a dirty mining method i e high dilution and low recovery However there were several successful sublevel cave mines executed in the past The success of a sublevel cave mine is not by chance - they are engineered to perform