telfer block caving e subnível caving

Block Caving Gold Mine Specialist Newcrest Mining …

2016-9-15 · Block Caving Gold Mine Specialist Newcrest Mining Enters Conditional Agreement to Invest in 10% of SolGold Highlights: Newcrest to subscribe for 135.708m shares in SolGold at US8 cents per share (6.07 pence for net proceeds of US$10.8m) subject to and conditional upon SolGold shareholder approval being obtained within 45 days.

(PDF) Fracture banding in caving mines

Fracture banding in ca ving mines. -56 *''+40,1,6#/)5+. The Duplancic conceptual model of caving (Duplancic and. Brady, 1999; Duplancic, 2001) is illustrated in Figure 1. The. model is composed of ...

Caving 2010: Second International Symposium …

2010. Hormazabal, E; Villegas, F; Rovira, F; Carranza-Torres, C. Geomechanical evaluation of macro-block caving options using 3D numerical modelling at Chuquicamata underground project in Chile. Caving 2010: Proceedings of the Second International Symposium on Block and Sublevel Caving, Caving …

Physical modelling of caving propagation process and ...

The cavability assessment of rock mass cavability and indicating the damage profile ahead of a cave-back is of great importance in the evaluation of a caving mine operation, which can influence all aspects of the mine operation. Due to the lack of access to the caved zones, our current knowledge about the damage profile in caved zones is very limited.

Optimization of the transition from open-pit to ...

2013-1-21 · that block, mass, or panel caving systems are the most practicable underground methods, achieving high production rates and low costs (Fuentes and Caceres, 2004). A general view of the transition problem is shown in Figure 1. In the past few decades, limited research has been carried out in order to solve the transition problem of some mines ...

NEWCREST Exploring undercover – Paterson Province, …

2019-12-31 · sublevel underground caving operation Total mineral endowment of 20Moz gold* Main Dome - 1971. Telfer Operations - 2018 *Telfer Total Mineral Endowment is past production sourced from Newcrest Annual reports and/or Mineral Resource from "Annual Mineral Resources and Ore Reserves Statement 31 December – 2018" dated 14 February 2019.

Caving 2018: Fourth International Symposium on …

Authors Title Year; Cumming-Potvin, D; Wesseloo, J; Jacobsz, SW; Kearsley, E: A re-evaluation of the conceptual model of caving mechanics Caving 2018: Proceedings of the Fourth International Symposium on Block and Sublevel Caving, Caving 2018: 2018: Morrison, DM; Drylie, V; Labrecque, PO: A systems approach to mining innovation Caving …

Assessing the state of the rock mass in operating …

The block caving mining process limits access to the or ebody, in turn limiting opportunities to gauge the. state of the rock mass once the rock mass degradation and caving process has initiated ...

Smart Marker System – a new tool for measuring …

2013-9-5 · (2010). Smart Marker System – a new tool for measuring underground orebody flow in block and sublevel mines. Mining Technology: Vol. 119, Block and Sublevel Caving, pp. 182-192.

NEWCREST Exploration Edge

2020-10-4 · Telfer. Gosowong. Bulk Sublevel Caving. Block Caving. Underground. Telfer. Cadia. Mining Capabilities. Unique search space, more opportunities. 1. Looking deeper in outcrop areas. 2. Exploring under cover. Newcrest''s unique mining capabilities opens up all search spaces. Mining Capabilities Looking deeper in Australia opens new

MINING METHOD SELECTION AND OPTIMIZATION OF …

2016-9-19 · remained deposit must be economically exploited by block caving Arancibia & Flores, 2004; Flores, 2004. Grasberg copper-gold mine in Indonesia is known as a combined mine of open pit and underground. Mining by open pit method will have been fi nished by 2015 (Brannon et al., 2004; Srikant et al., 2007).

Identifying and Describing a Seismogenic Zone in a ...

This case study is based on field data from Telfer sublevel caving mine in Western Australia. A seismic monitoring database was collected during cave …

Sublevel Caving Underground Mining Cost

2020-8-20 · Telfer block caving and sublevel caving.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.

NEWCREST Exploration edge

2020-10-4 · Telfer Gosowong Bulk Sublevel Caving Block Caving Underground Telfer Cadia. Mining Capabilities Unique search space, more opportunities 1. Looking deeper in outcrop areas 2. Exploring under cover Newcrest''s unique mining capabilities opens up all search spaces.

ACG Caving – International Conferences on Block and ...

Information for conference attendees. The Block and Sublevel Caving Conferences provide a platform for mining companies to be kept informed of the latest technological developments and caving research carried out by industry and academia.

Dos métodos de lavra subterrânea abaixo, assinale aquele...

Método de abatimento por blocos (Block Caving) B. Método do realce (Shrinkage Stoping) C. Método do corte e enchimento (Cut and Fill) D. Método de abatimento por subnível (Sublevel Caving) E. Método do subnivel (Sublevel Stope)

For personal use only

2020-1-21 · Block Caving. Underground. Telfer. Cadia. For personal use only. Looking deeper in Australia opens new opportunities. ... sublevel underground caving operation Total mineral endowment of 20Moz gold* Main Dome - 1971. Telfer Operations - 2018 *Telfer Total Mineral Endowment is past production sourced from

» MINERAÇÃO (PERFIL 1)

2013-11-26 · c) Método de Abatimento por subnível (sublevel caving). d) Método de Abatimento por blocos (block caving). e) Método de Realce (shrinkage stoping). 40. Considerando um circuito fechado de moagem que tem alimentação 350 t/h e onde 130 t/h retornam ao classificador, qual é a carga circulante? a) 2,7 %. b) 37 %. c) 2,2 %. d) 27 %. e) 3,7 %.

BAML Conference Presentation

2019-5-13 · Telfer Gosowong Bulk Sublevel Caving Block Caving Underground Telfer Cadia. Technology being trialled at Telfer1,2 1 Subject to market and operating conditions and no unforeseen circumstances occurring. 2 This should not …

0.3_Flores-Gonzalez.pdf

Block caving is a highly productive, low‐cost underground mass mining method. In block caving, the full orebody or an approximately equidimensional block of ore is undercut to initiate caving. The undercut zone is drilled and blasted progressively, and some broken ore is drawn off to create a void into which initial caving of the overlying ore can take place.

Strategic management for squeezing ground conditions at ...

2015-11-16 · Glenn completed his graduate program at Newcrest Mining''s Telfer Gold Mine, a sub-level caving operation. Glenn moved to Argyle Diamonds Block Cave in 2010. His role at Argyle consists of ground control, ground support design, cave and drawbell monitoring, resin injection for ground consolidation, drawbell sequencing, undercutting ...

CAVING 2010

Caving 2010, Perth, Australia CAVING 2010 Second International Symposium on Block and Sublevel Caving Proceedings of the Second International Symposium on Block and Sublevel Caving 20–22 April 2010, Perth, Australia EDITOR Yves Potvin Australian Centre for Geomechanics, The University of Western Australia, Australia

Mathematical Programming Application in Sublevel Caving ...

Production scheduling determines the most beneficial mining sequence over the life of a mine. Developing a schedule that meets all mining aspects can substantially reduce mining costs and increase profitability. Among all underground mining methods, the sublevel caving method is a common method with moderate development requirements, a high production rate, and a high …

Metodo Com Suporte Das Encaixantes | Trabalhosfeitos

Abatimento por subnível (SUBLEVEL CAVING) (j). Abatimento por blocos (BLOCK CAVING) As características que ditam a escolha do método de lavra, também podem ser agrupadas como seguem: resistência do minério e da encaixante, regularidade do corpo de minério, mergulho do corpo e dos ORE SHOOTS, continuidade dentro dos limites do depósito ...

For personal use only

2017-5-3 · Block Caving Sublevel Caving Reef Open pit Narrow Vein Selective Underground Bulk Underground Pressure oxidation Cyanide & carbon in leach Large scale comminution Copper-gold flotation Processing Lihir, Telfer, Bonikro Telfer Gosowong Telfer Cadia For personal use only. 11 Value add through technical innovation 2001-2011 Ridgeway Sublevel Cave ...

Keynote Addresses Monitoring

Block cave optimisation — a value driven approach 55 C.A. Stewart, A. Altman and B.E. Hall, AMC Consultants Pty Ltd, Australia Strategic considerations in block caving 60 R.J. Butcher and G. Smith, Barrick Gold of Australia Ltd, Australia A new mine planningtool forsublevel caving …

190214 Newcrest Half Year Results Presentation

2020-10-4 · Telfer. Gosowong. Block Caving. Bulk Sublevel Caving. Underground. Telfer. Cadia. Half year highlights. Safety. Approach to growth. Site Results. Financials. Summary. What makes Newcrest different. Long reserve life. Low cost production. Strong exploration & technical capabilities. Organic growth options (at Cadia, Lihir and Wafi Golpu)

NEWCREST TECHNOLOGY STEP CHANGE

2018-2-20 · An example is bulk cave mining. Newcrest''s caving strategy has been developed through growing a base knowledge and capability. In the past, Sublevel Caving at Ridgeway and Telfer mines have shown strong results. In moving forward, Newcrest aims to expand on this developed knowledge by increasing Block and Panel Caving expertise.

[PDF] Cave mining

Caving is the lowest-cost underground mining method, provided that the drawpoint spacing, drawpoint size, and ore-handling facilities are designed to suit the caved material, and that the drawpoint horizon can be malntalned for the life of the draw. In the near future, several open-pit mines that produce more than 50 kt per day will have to examine the feasibility of converting to …

Covering memo and Macquarie Presentation 30 April 2019

2019-4-30 · Telfer Gosowong Bulk Sublevel Caving Block Caving Underground Telfer Cadia. Technology being trialled at Telfer1,2 1 Subject to market and operating conditions and no unforeseen circumstances occurring. 2 This should not …

Aula 13 Sublevel stoping

Arranjo típico da lavra de alargamento em subníveis (Cummins e Given, 1973) 27/10 Métodos com suporte artificial Cut and fill (aula) Câmaras e pilares (aula) Shrink stoping (3) VCR stoping (4) Longwall mining (1) Métodos com suporte natural Sublevel and longhole open stoping (aula) Métodos por abatimento Sublevel caving (5) Block caving ...