sublevel stoping

Sublevel Caving Technique Mining Drilling RigUnderground mining hard rock Wikipedia

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 retreatUnderground hard rock mining refers to various underground mining techniques used to excavate hard minerals usually those containing metals such as ore containing gold silver iron copper zinc nickel tin and lead but also involves using the same techniques for excavating ores of gems such as diamonds or rubi Soft rock mining refers to excavation of softer minerals such as salt coal

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The sublevel stoping mining method is Atlas Copco Sublevel stoping Monografias

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 SUB LEVEL STOPING INTRODUCCIÓN Es el modo de dividir el cuerpo mineralizado en sectores aptos para el laboreo y consiste en arrancar el mineral a partir de subniveles de explotación mediante disparos efectuados en planos verticales con tiros paralelos y radiales posteriormente quedando vacío el caserón después de la explotación

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Sublevel Caving Underground Mine Design Flash KoofersSublevel Stoping Koofers

Flash cards for MINE Underground Mine Design with Ripepi at ia Tech VT What is Sublevel Stoping The ore body is divided into stopes which are large sections with the largest dimension in the vertical direction SLOS recovers the ore in the open stopes by drilling and blasting from different levels but ore is removed from one level at the bottom of the mine

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Stoping mining BritannicaA long hole stoping system for mining narrow platinum reefs

Stoping in mining engineering the opening of large underground rooms or stopes by the excavation of oreStoping is practiced in underground mineral mining when the surrounding rock is strong enough to permit the drilling blasting and removal of ore without cavingIn mines where the rock requires no artificial support the operation is known as open stopingA long hole stoping system for mining narrow platinum reefs Advantages of this mining method It allows for a low safety and health risk as well as improved working environment Physical work is reduced and it is easier to motivate the workforce Another advantage is the

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Design and Application of Sublevel Stoping Methods PDF Underground mining Methods ResearchGate

The most commonly used sublevel stoping mining methods are sublevel open stoping long hole open stoping or blasthole stoping and vertical crater retreat VCR Variations of this method include vein Alimak mining transverse stoping Avoca and longitudinal mining Sublevel stoping accounts for more than 60 of all underground production in The essential geomechanical features of longwall and caving methods of mining were outlined in Chapter 12 Longwall and caving methods are distinguished from other mining methods by the fact that

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SUB LEVEL OPEN STOPING DESIGN OF THE O640 L651 Geotechnical Design for Sublevel Open Stoping CRC Press

sub level open stoping and the design process followed The objective here is to present a design methodology applicable to sublevel open stoping but also to then bridge the gap between theory and practice by applying said methodology to an actual design exampleSummary 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 stoping geometry is chosen for a particular mining method equipment availability and work force experience

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Sublevel Stoping OraeeDescription of mining methods step by step nvp pgforg

Sublevel stoping requires a regular layout of the stopes and ore boundari Stopes have to be in exact cubical or other similar shap Inside the shape everything is mined and outside the stope nothing can be mined Therefore no selective miningis possible at all After blasting separation is also impossibleSub 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 Ore is transported to the Montana Tunnels mill facility by truck

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Sub level stoping LKAB WassaraEconomic Comparison of Drilling Systems in Sublevel

In sub level stoping the holes are generally just a few meters apart and some of the holes are adjacent to both the foot wall and the hanging wall If deviation occurs it causes a decrease in ore recovery an increased amount of dilution and less homogenous fragmentation In the Economic Comparison of Drilling Systems in Sublevel Stoping Method KAZEM ORAEE1 and AMIR HOUSSAIN BANGIAN 2 Drilling constitutes an important part of the production process in sublevel stoping method and up to 50 of the total costs can be attributed to this element With the advent of recently developed sophisticated and expensive drilling

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Geotechnical Design for Sublevel Open Stoping CRC PressSublevel stoping Article about sublevel stoping by The

Summary 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 stoping geometry is chosen for a particular mining method equipment availability and work force experienceSublevel stoping was reviewed by E Villaescusa 28 considering the factors controlling stope wall behaviour such as excavation geometry rockmass strength induced stress ground support blast damage and drill drive layout

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SubLevel Stoping OneMineA long hole stoping system for mining narrow platinum reefs

When designing a sublevel stoping production sys tem it should be kept in mind that production rates from conventional sublevel stopes vary widely through out the life of the stope Early production is at a low rate coming only from the drawpoints near the slot A long hole stoping system for mining narrow platinum reefs Advantages of this mining method It allows for a low safety and health risk as well as improved working environment Physical work is reduced and it is easier to motivate the workforce Another advantage is the

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Design methodology for underground ring blastingSublevel Stope Design Economic Geology Mining

Design methodology for underground ring blasting I Onederra and G Chitombo This paper discusses a systematic approach to underground ring design as well as a methodology for the continuous improvement of designs as conditions change The methodology is applicable to designs for prefeasibility and feasibility stages as well as designs for Continuous advance sublevel open stoping After Grice Primary and secondary 1 4 7 and 1 5 9 stoping sequences A compromise to a pillarless sequence is to use a general triangular retreat shape but using a short lift primary and secondary stope arrangement

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Sublevel Caving Mining Method Newtrax Technologies IncDesign methodology for underground ring blasting

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 conditionsDesign methodology for underground ring blasting I Onederra and G Chitombo This paper discusses a systematic approach to underground ring design as well as a methodology for the continuous improvement of designs as conditions change The methodology is applicable to designs for prefeasibility and feasibility stages as well as designs for

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