Cadia East Ensuring at least another 30 years mining at smedg
All rights reserved Newcrest Mining Ltd Cadia East Ensuring at least another 30 years mining at Cadia Valley Dean Collett Principal Geologist x 350m lift 39 s – Multiple caving fronts Ridgeway 5 6 Mtpa Cadia Hill Pit 16 Mtpa Cadia East Pit Cadia East Underground Project Decline Ridgeway Deeps Block Caving nbsp
Expansion of Cadia Valley Operations Newcrest Mining Limited
18 Jul 2013 who is a Fellow of The Australasian Institute of Mining and Metallurgy and a full time employee of Newcrest Mr Moorhead has Telfer sublevel cave − Ridgeway Deeps block cave Step improvements incorporated − Greater understanding of material flow − Improved cave propagation from rock mass nbsp
Progress and challenges in some areas of deep mining Australian
deep tabular orebody mining including longwall methods remnant mining and the mining of shaft pillars longwall coal mining block and panel caving sublevel caving plans including the air inrush hazard management plan for the Ridgeway Mine discussed by Logan and Tyler 2004 HMMP Hazardous materials nbsp
Open Pits Going Underground SRK Consulting
undercut for a cave Chris concludes Ridgeway are on track to show the mining world that if the context is suit able then SLC is a method that can really deliver in terms of cost to finished metal Support for deep block cave layouts under rockbursting conditions While deep block cave mining operations present tough nbsp
ET Ted Brown AC The Golder Foundation
Geotechnical and caving reviewer Carrapateena Project BHP Billiton 2010 Independent expert Newcrest Mining Ltd 39 s Ridgeway Deeps and Cadia East block and panel caving research and development dispute for Allens lawyers 2012 date Specialist advisor on caving geomechanics Pulang Copper Project China nbsp
Fracture banding in caving mines University of Pretoria
interpretation of microseismic monitoring data in modern block caving mines Analysis of microseismicity was conducted at two large copper gold porphyry block cave operations The results of the analysis indicated that the mechanism seen in the physical model may have occurred at both mines This paper discusses the nbsp
Day 1 Technical Program – Monday 9 May 2016
4 May 2016 Beyond Rock Mass Characterisation – the Impact of Geology on Block Cave Mining T Murphy A Webster and G Chitombo Fragmentation Prediction and Assessment at the Ridgeway Deeps and Cadia East Cave Operations I Brunton J L Lett and T Thornhill Experiences Gained through Tunnel
The most modern shafts InfoMine
lateral development and construction of the Hugo North Lift 1 Block Cave is now underway That work includes 45km of pre production development and over 145km of total development Redpath is the principal mining and construction contractor RUC Cementation is raise boring two ventilation shafts near Shaft 1
Ridgeway Gold and Copper Mine New South Wales Mining
The transformation of Ridgeway Underground – a sub level caving operation – into a block cave involved a mine design and a process to ensure the rock 39 naturally 39 caves progressively upwards by a gravitational force of the undercutting and removal of broken ore at the base of nbsp
Caving 2014 Chile Mining Geology Scribd
Caving 2014 Chile Ebook download as PDF File pdf Text File txt or read book online Panel Caving SUBLEVEL CAVING Proceedings of the Third International Symposium on Block and Sublevel Caving 5 6 June 2014 Santiago Chile EDITOR Raúl Castro 39 Freeport Indonesia 39 s Deep Ore Zone mine 39
SEG Distinguished Lecture Society of Economic Geologists
Surface Area Effects Surface area affects the waste to ore W O ratio in an open pit – Ultra deep pits require a large surface area Block cave mines generally have smaller surface dimension – Super caves require a large surface area to maximise panel caving nbsp
Explanatory Notes Newcrest Mining Limited
13 Feb 2015 extraction and Block Caving Ridgeway Deeps below the SLC The mine which supplies approximately 7 8Mt of gold copper ore annually to the Cadia concentrator produces gold as doré and in copper concentrate Mineral Resource The Ridgeway Mineral Resource includes the operating block cave nbsp
Optimizing Microseismic Source Location in Block Caving Operations
KEYWORDS Microseismic Block caving Variable velocity Hard rock mining Source location accuracy INTRODUCTION New Gold 39 s New Afton Mine is a new block caving operation located 8 km west of Kamloops in South Wales based on geomechanical data and detailed microseismic analysis in Deep and High
massmin 2016 contents The AusIMM
Cave Management Full scale Flow Marker Experiments at the Ridgeway Deeps and Cadia East Cave Operations I Brunton J L Lett G B Sharrock Fragmentation Prediction in Block Caving R Castro R Gómez A Casali and A Hekmat 175 Geostatistical Modelling of Hydraulic Fracturing Pressures at El Teniente Mine
Face sheet UQ eSpace University of Queensland
2 Insights from an analysis of the Ridgeway Deeps block cave mine are discussed in this paper INTRODUCTION Historically Block Cave mining was focussed on orebodies with poor rock mass characteristics e g Henderson Shabanie such that the mineralized zone to be extracted was of lesser competency than the
Cascabel A New Generation Copper Gold Discovery for SolGold
These presentation slides the Slides have been issued by SolGold plc the Company in relation to an update on activities by the Company These Slides do not comprise an admission document listing particulars or a prospectus relating to the Company do not constitute an offer or invitation to purchase or subscribe nbsp
Underground mining hard rock Wikipedia
Ventilation is also used to manage underground temperatures for the workers In deep hot mines ventilation is used to cool the workplace however in very cold locations the air is heated to just above freezing before it enters the mine Ventilation raises are typically used to transfer ventilation from surface to the workplaces nbsp
Open pit or block caving A numerical ranking method for selection
Full text PDF Mining in the 21 st century is facing many challenges among which are low grade and high tonnage orebodies One great In underground mining block caving is the only method with the costs comparable to surface mining methods especially open pit mining Deep Ore Zone Copper Indonesia
Cadia Valley Operations Newcrest Mining Limited
9 Ridgeway Deeps Block Cave Cadia Hill Cadia East Panel Cave Resource of 83 million gold equivalent ounces Approximation calculated at Gold US 600 per ounce Copper US 1 70 per pound Ridgeway Sublevel Cave Cadia Valley nbsp
Empirical observations of dilution in panel caving
This paper presents a back analysis of extraction and dilution behaviour at Codelco 39 s El Salvador and Andina Divisions which use panel caving as a mining method This analysis was conducted in order to Full scale near field flow behaviour at the Ridgeway Deeps Block Cave Mine Proceedings of MassMin 2012 6th nbsp
Newcrest Mining Limited Concise Annual Report 2005
7 Sep 1999 Cracow Gold Mine 22 Section 3 Projects 25 Telfer 26 Ridgeway Deeps 28 Cadia East 29 Kencana 30 Boddington 31 Section 4 Exploration 33 Exploration Strategy and Review 34 The world class Ridgeway sub level cave underground mine again achieved a high productivity level and low nbsp
Oyu Tolgoi Advancing value and creating options Turquoise Hill
21 Jun 2017 Ridgeway Deeps amp Cadia East Silangan Wafi Golpu Africa Cullinan Debswana Mines Finsch Kimberly Mines King Koffiefontain Palabora Mine comprised of the Grasberg Open Pit and four underground block caving zones including – Grasberg Deep Ore Zone DOZ – Grasberg Deep Mill
Block Caving Cu Au Porphyry SRK Exploration Services
7 Mar 2016 There are over 45 cave mining projects in various stages of studies and development around the world Cave mining methods will CREIGHTON GRACE SEVERAL PROJECTS AND MINES IN RUSSIA CONFIDENTIAL RIDGEWAY DEEPS amp CADIA EAST KSM PROPERTY Cave Mines and Projects nbsp
Annual Mineral Resources and Ore Reserves Explanatory Notes 15
15 Feb 2016 12 Newcrest Mining – Explanatory Notes to the Annual Mineral Resources and Ore Reserves Statement 31 December 2015 Ridgeway Mineral Resource Ore Reserve Construction of the Ridgeway Deeps Lift 1 block cave was completed in October 2010 with Lift 1 mining currently in operation but nbsp
Telfer w with pr 800000 copper signific resourc AnnualReports com
15 Oct 2004 10 Financial Report 11 Section 2 Operations 12 Cadia Valley Operations 14 Ridgeway Gold Copper Mine 14 Cadia Hill Gold Copper Mine 16 Toguraci Gold Mine understanding of Panel and Block Cave mine operations with potential application to new projects the Company has in the pipeline
1 2010 Mine Tour New Afton Project Kamloops British New Gold
22 Sep 2010 mining including environmental hazards industrial accidents unusual or unexpected formations pressures cave ins flooding and gold bullion losses and the risk of 39 Beyond the C Zone Future exploration Faulted Offset Extension Main Zone C amp Deep C Zone Base of Block Cave Afton Pit nbsp
Glenn Sharrock CV pdf Itasca Australia Pty Ltd
Sharrock G B Brunton I 2013 Simulating gravity flow in block caving with cellular automata Int J Numer Anal Meth Geomech in progress 3 Brunton I Sharrock G B 2013 Full scale marker trials at Ridgeway deeps block cave mine Int J Rock Mech Mining Sci in progress 4 Nilsson M Edelbro C Sharrock nbsp
Mining Methods Block Caving Geology for Investors
15 Mar 2017 In some mines there are multiple block caving events such as at the Ridgeway mine in Australia when the initial block cave was depleted they went deep 1100 metres below surface for their second block cave In other cases such as Cadia Palabora and Chuquicamata block caving was the solution to nbsp
