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Ore Body Characteristics

Sublevel Caving Technique | Mining | Drilling Rig

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.

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(PDF) Longwall; Sublevel Caving and Block Caving

PDF | Longwall Longwall in coal Longwall in Hard Rock Sublevel Caving Characteristics of the ore body and mining method Development Production| Find, read and cite all the research you need on

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Design & Operating Principles in Caving Methods

Schematic layout for sublevel caving (after Hamrin, 1982) DEFINITION: A mining method which is applicable to low grade near -vertical metallic or nonmetallic deposits. Mining progresses downwards while the ore between sublevels is broken overhand with long hole uppers (fan -holes).

CN105822307A Underhand sublevel open stoping method

The invention relates to the technical field of stoping methods and particularly relates to an underhand sublevel open stoping method. The underhand sublevel open stoping method comprises the following steps: firstly, arranging an ore block along the direction of an ore body and dividing the ore block into an ore room and an ore column; dividing the ore block into 3-5 sublevels in the vertical

Author: 雷明礼, 张海磊, 刘武团, 严文炳, 陈小平, 焦满岱, 柴衡山, 孟慧媚, 张睿, 刘涛

Mining Blasthole stoping | Britannica

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 surface that takes place as ore is removed.

(PDF) Sublevel Stoping Underground Mining Methods

Presentation (PDF Available) -in sublevels production when using sublevel caving-;-na base level or ore body, when it is used block caving, sublevel stoping and VCR. Prof. Dr.

Rock Blasting in Underground Mining PDF Free Download

In blast design of sublevel caving, it is suggested that the burden should be determined on the basis of the analysis in the chapter: Burden and Spacing combined with empirical parameters. In present sublevel caving, the largest borehole is about 115 mm in diameter, and corresponding burden is often 3 m or 3.5 m in some mines.

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Keeping up with caving REDPATH MINING

46 BLOCK CAVING Keeping up with caving Caving mining techniques are experiencing a surge of interest, thanks to a combination of favourable metal prices, high forecast demand and the need to exploit deeper, more complex orebodies at the lowest cost possible. Carly Lovejoy investigates the

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Sandra's Cave Mining Handbook

Reference will be made to detail and figures and plates in the ‘Block Caving Manual’ by showing the chapter number and the page in that chapter, e.g. (Ch5, p 12) CAVE MINING HANDBOOK _____ Page 4 of 138 Chapter 2 GEOLOGICAL INVESTIGATIONS 1.0 GENERAL Geological investigations are ongoing for the life of the operation from grass roots to the

Sublevel Caving Technique | Mining | Drilling Rig

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.

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Gravity flow of broken rock in sublevel caving (SLC

1 SUBLEVEL CAVING (SLC) 1.1 Basic considerations Sublevel caving is a mass mining method based upon the utilization of gravity flow of blasted ore and caved waste rock (Kvapil, 1998). It relies on the principle that ore is fragmented by blasting while the overlying host rock fractures and caves under the action of mine induced stresses and

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Parameters influencing full scale sublevel caving material

Parameters influencing full scale sublevel caving material recovery at the Ridgeway gold mine I.D. Bruntona,b,, S.J. Fraserc, J.H. Hodgkinsonc, P.C. Stewartb a Newcrest Mining Limited, Cadia Valley Operations, Cadia Road, South Orange, 2800, Australia b The University of Queensland, W.H. Bryan Mining and Geology Research Centre, Brisbane, Australia c CSIRO Exploration and Mining,

[PDF] Sublevel Caving Free Download PDF

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Just-in-time development model for a sub-level caving

Shabanie mine is a sub-level caving underground mining operation in Zimbabwe. Historical mine data (withheld for proprietary reasons) for the period 1990-2000 indicate that buffer mineral reserves have traditionally been maintained at about 4 years with the LOR in excess of 13 years. However the general decline in development rates ahead of mining

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Draw Control Strategy for DiVA portal

Sublevel Caving Mines A probabilistic approach ISSN 1402-1757 ISBN 978-91-7790-021-4(print) ISBN 978-91-7790-022-1 (pdf) Luleå University ofTechnology 2018 Gurmeet Shekhar Draw Control Strategy for Sublevel Caving Mines Gurmeet Shekhar Mining and Rock Engineering. Licentiate Thesis Draw control strategy for sublevel

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Controlling the effects of stress and seismicity in a

Controlling the effects of stress and seismicity in a sublevel caving operation HCJ Esterhuizen 612 Caving 2018, Vancouver, Canada Figure 7 Ernest Henry mine seismic risk areas, domains and rock mass types Table 2 contains a summary of the rock mass properties for EHM, and Table 3 shows the in situ stress regime.

Rock Blasting in Underground Mining PDF Free Download

In blast design of sublevel caving, it is suggested that the burden should be determined on the basis of the analysis in the chapter: Burden and Spacing combined with empirical parameters. In present sublevel caving, the largest borehole is about 115 mm in diameter, and corresponding burden is often 3 m or 3.5 m in some mines.

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Design methodology for underground ring blasting

sublevel caving (SLC) blasting, ring designs reside in only one plane, in contrast to large open stopes or drawbell blasting, several rings may reside in multiple oriented planes (iii) ring dump: ring dump refers to the angle of inclination of a ring plane. It is generally applied

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Design rules for avoiding draw horizon damage in deep

block caving mining methods and the threats to the draw horizon in these operations are described. Mining methods Typical layouts for trackless and slusher block caving systems are described by Owen and Guest (1994) and Hartley (1981) and are shown in Figures 1 and 2. The essential features of block caving systems are: a draw horizon or

sublevel caving SlideShare

sublevel caving 1. Metodo de minado porhundimiento de subniveles SLCCastro Cuya Lincoln 20091166I 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.

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UNIVERSIDAD DE CHILE FACULTAD DE CIENCIAS FISICAS Y

of a specific selection model for Sublevel Stoping and Sublevel Caving in narrow veins. The foundation of the selection model is the Mathew's stability graphical method which allows designing stable mining units and in the caving zone for the Sublevel Stoping and Sublevel Caving methods, respectively.

Block caving QueensMineDesignWiki

Block caving is an underground mining method that uses gravity to exploit massive, steeply dipping ore bodies located at depth. These ore bodies are generally low grade in nature and are too deep to be extracted through open pit mining. The technique is commonly used to extract low grade copper, copper-gold, iron and molybdenum ores although

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v116n8a2 The CCUT block cave design for Cullinan Diamond

using variations of sublevel open-bench mining. Conventional-type cave mining started in the early 1970s, and sublevel open stoping was attempted in the early 1980s but was changed to mechanized panel retreat block caving. The BA5 and BB1E blocks (Figure 2) below the sill on elevations 630 mbs and 732 mbs respectively were changed from post-

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Gravity flow of broken rock in sublevel caving (SLC

1 SUBLEVEL CAVING (SLC) 1.1 Basic considerations Sublevel caving is a mass mining method based upon the utilization of gravity flow of blasted ore and caved waste rock (Kvapil, 1998). It relies on the principle that ore is fragmented by blasting while the overlying host rock fractures and caves under the action of mine induced stresses and

[PDF]

Parameters influencing full scale sublevel caving material

Parameters influencing full scale sublevel caving material recovery at the Ridgeway gold mine I.D. Bruntona,b,, S.J. Fraserc, J.H. Hodgkinsonc, P.C. Stewartb a Newcrest Mining Limited, Cadia Valley Operations, Cadia Road, South Orange, 2800, Australia b The University of Queensland, W.H. Bryan Mining and Geology Research Centre, Brisbane, Australia c CSIRO Exploration and Mining,

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Draw Control Strategy for DiVA portal

Sublevel Caving Mines A probabilistic approach ISSN 1402-1757 ISBN 978-91-7790-021-4(print) ISBN 978-91-7790-022-1 (pdf) Luleå University ofTechnology 2018 Gurmeet Shekhar Draw Control Strategy for Sublevel Caving Mines Gurmeet Shekhar Mining and Rock Engineering. Licentiate Thesis Draw control strategy for sublevel

[PDF] Sublevel Caving Free Download PDF

Jun 26, 2020· Download Sublevel Caving. Share & Embed "Sublevel Caving" Please copy and paste this embed script to where you want to embed

[PDF] Sublevel Caving: Steffano Bouttore P. Vulcan Free

Aug 03, 2020· Download Sublevel Caving: Steffano Bouttore P. Vulcan. Share & Embed "Sublevel Caving: Steffano Bouttore P. Vulcan" Please copy and paste this

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Controlling the effects of stress and seismicity in a

Controlling the effects of stress and seismicity in a sublevel caving operation HCJ Esterhuizen 612 Caving 2018, Vancouver, Canada Figure 7 Ernest Henry mine seismic risk areas, domains and rock mass types Table 2 contains a summary of the rock mass properties for EHM, and Table 3 shows the in situ stress regime.

Sublevel Caving Technique | Mining | Drilling Rig

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.

[PDF]

Design methodology for underground ring blasting

sublevel caving (SLC) blasting, ring designs reside in only one plane, in contrast to large open stopes or drawbell blasting, several rings may reside in multiple oriented planes (iii) ring dump: ring dump refers to the angle of inclination of a ring plane. It is generally applied

[PDF]

Design rules for avoiding draw horizon damage in deep

block caving mining methods and the threats to the draw horizon in these operations are described. Mining methods Typical layouts for trackless and slusher block caving systems are described by Owen and Guest (1994) and Hartley (1981) and are shown in Figures 1 and 2. The essential features of block caving systems are: a draw horizon or

sublevel caving SlideShare

sublevel caving 1. Metodo de minado porhundimiento de subniveles SLCCastro Cuya Lincoln 20091166I 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.

[PDF]

UNIVERSIDAD DE CHILE FACULTAD DE CIENCIAS FISICAS Y

of a specific selection model for Sublevel Stoping and Sublevel Caving in narrow veins. The foundation of the selection model is the Mathew's stability graphical method which allows designing stable mining units and in the caving zone for the Sublevel Stoping and Sublevel Caving methods, respectively.

Solving the Problems of Precharging Sublevel Caving Rings

Ridgeway Gold Mine (RGM) is an underground sublevel caving (SLC) operation that is owned and managed by Newcrest Mining Limited (NML). Production drill and blast practices are critical to the success of the SLC method at RGM.

Caving Underground Mining Methods (longwall, Sublevel

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.

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Deswik.Caving

Deswik.Caving Production optimization • Models flow of rock within the cave Life-Of-Mine to give recovery and dilution forecasts. • Optimizes production targets at draw points. • Schedules production for block, panel and sublevel caving. Capabilities • Automatic flow mechanics properties.