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3D large scale physical modelling for studying interactive .

3D large scale physical modelling for studying interactive drawing and drawpoint spacing in Block Caving Mines A. Halim Julius Kruttschnitt Mineral Research Centre, The Un iversity of Queensland Abstract In block caving mines, the gravity flow of caved (broken) ore controls the amount of valuable

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STUDY OF THE INFLUENCE OF INTERACTIVE DRAW UPON

These results have led to significant new understandings about the influence of interactive draw upon drawpoint spacing in block and sublevel caving mines. The drawpoints must be spaced less than the width of Isolated Movement Zone (IMZ) at height of draw less than the ore column height.

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The Isolated Extraction Zone in Block Caving — A Review

The Isolated Extraction Zone in Block Caving — A Review. . Halim, A. (2004) 3D large scale physical modelling for studying interactive drawing and drawpoint spacing in Block Caving Mines. Brisbane, Julius Kruttschnitt Mineral Research Centre, University of Queensland.

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Determination of drawpoint spacing in panel caving: a case .

Block caving methods rely on the use of gravity to break and transport large amounts of caved rock from their in situ location to drawpoints located at a production level. Thus, in caving methods, the flow characteristics of the caved rock are fundamental to determining the extraction layout design and the draw

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block caving, cost model - LIMING Mining

Nov 19, 2012 · 3D large scale physical modelling for studying interactive drawing Block caving is the lowest cost and most model (m) Modern Kiruna Ridgeway Block cave IEZ (P50 5mm) Block cave IEZ (P50 20mm) 47.5 37 102 102 23.75 »More detailed

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Study of multiple draw-zone interaction in block caving .

The interactive draw theory proposed by Laubscher, and developed more than 20 years ago, is today the most widely used method to define the draw-point spacing in block and panel caving mines (see, for example, Ref. ). Block and panel caving have evolved from that time from being applied to low competent rock and low block heights to be now used .

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Group of Knowledge - Edumine

In any cave mining system the block to be caved must be undercut to induce caving. Access must also be provided for extraction units to load ore from the base of the cave and transport it to the passes or crushers. The excavations associated with block caving can be developed in at least 3

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How to Draw a Cave

Aug 14, 2017 · How to draw a realistic cave. Hi everyone! Here's another tutorial video. Showing how to draw a cave. I really hope this is helpful in some way. Please let

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Block caving - QueensMineDesignWiki