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Mining_Methods_UnderGround_Mining - Mining and Blasting

Mining_Methods_UnderGround_Mining - Mining and Blasting

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Contents<br />

Foreword<br />

2 Foreword by Hans Fernberg M Sc<br />

<strong>Mining</strong> Engineering, Senior Adviser,<br />

Atlas Copco Rock Drills AB<br />

Talking Technically<br />

3 Trends in underground mining<br />

7 Geology for underground mining<br />

13 Mineral prospecting <strong>and</strong> exploration<br />

17 Finding the right balance in exploration drilling<br />

21 Underground mining infrastructure<br />

25 Principles of raise boring<br />

29 Mechanized bolting <strong>and</strong> screening<br />

33 <strong>Mining</strong> in steep orebodies<br />

39 <strong>Mining</strong> in flat orebodies<br />

43 Backfilling for safety <strong>and</strong> profit<br />

46 Atlas Copco rock bolts for mining<br />

Case Studies<br />

47 Innovative mining at Garpenberg<br />

53 Changing systems at Zinkgruvan<br />

59 Increasing outputs at LKAB iron ore mines<br />

63 From surface to underground at Kemi<br />

69 <strong>Mining</strong> magnesite at Jelšava<br />

73 All change for Asikoy copper mine<br />

77 <strong>Mining</strong> challenge at El Soldado<br />

83 Pioneering mass caving at El Teniente<br />

91 Boxhole boring at El Teniente<br />

97 Modernization at Sierra Mir<strong>and</strong>a<br />

99 Mount Isa mines continues to exp<strong>and</strong><br />

105 High speed haulage at Stawell<br />

109 Sublevel stoping at Olympic Dam<br />

115 Improved results at Meishan iron ore mine<br />

119 Mechanized mining in low headroom at Waterval<br />

121 Large scale copper mining adapted to lower seams<br />

125 Underground mining of limestone <strong>and</strong> gypsum<br />

129 Sub level caving for chromite<br />

133 Getting the best for Peñoles<br />

137 Keeping a low profile at Panasqueira<br />

Front cover: Headframe at Australia´s Golden Grove mine.<br />

All product names such as Boomer, Boltec, Simba, COP, Scooptram<br />

<strong>and</strong> Swellex are registered Atlas Copco trademarks. For machine<br />

specifications contact your local Atlas Copco Customer Center or<br />

refer to www.atlascopco.com/rock<br />

Produced by tunnelbuilder ltd for Atlas Copco Rock Drills AB, SE-701 91 Örebro, Sweden, tel +46 19 670 -7000, fax - 7393.<br />

Publisher Ulf Linder ulf.linder@se.atlascopco.com Editor Mike Smith mike@tunnelbuilder.com Senior Adviser Hans Fernberg<br />

hans.fernberg@se.atlascopco.com Picture Editor Patrik Johansson patrik.johansson@se.atlascopco.com<br />

Contributors Marcus Eklind, Patrik Ericsson, Jan Jönsson, Mathias Lewén, Gunnar Nord, Björn Samuelsson,<br />

all name.surname@se.atlascopco.com, Adriana Potts adriana.potts@ntlworld.com, Kyran Casteel kyrancasteel@aol.com,<br />

Magnus Ericsson magnus.ericsson@rmg.se. The editor gratefully acknowledges extracts from Underground <strong>Mining</strong> <strong>Methods</strong><br />

– engineering fundamentals <strong>and</strong> international case studies by William A Hustrulid <strong>and</strong> Richard L Bullock, published by SME,<br />

details from www.smenet.org<br />

Designed <strong>and</strong> typeset by ahrt, Örebro, Sweden<br />

Printed by Welins Tryckeri AB, Örebro, Sweden<br />

Copyright 2007 Atlas Copco Rock Drills AB.<br />

Digital copies of all Atlas Copco reference editions can be ordered from the<br />

publisher, address above, or online at www.atlascopco.com/rock. Reproduction<br />

of individual articles only by agreement with the publisher.<br />

underground mining methods 1

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