stope height at the oyu tolgoi block caving

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mass mining and caving Cave mines can have a significantly smaller footprint than a comparable open pit, since waste mined is only limited to underground infrastructure development ,continued news Caving Addressing the challenges and future of cave mining Infrastructure development at Oyu Tolgoi No 56 SRK Consulting’s International .

pwc 2012 Americas School of Mines

Pre-stripping at Oyu Tolgoi, Mongolia Geological Concepts 15 March 2, 2012 March 2, 2012 Source: .

Caving Cu-Au Porphyry | SRK Consulting

Caving Cu-Au Porphyry | SRK Consulting There are over 45 cave mining projects in various stages of studies and development around the world Cave mining methods will be the underground method of choice in the future It is only relatively recent that this mass mining method, despite 70 years of use, has begun proving its potential

Underground Development

Key facts about Oyu Tolgoi underground mine: 80 per cent of Oyu Tolgoi’s value lies beneath the surface; Mining method: Block caving; Operations: The mine will work 365 days a year with two 12-hour shifts The total conveyor length (132 kilometres) is as long as the distance from the Sukhbaatar Square to Tolgoit station

Stochastic optimisation of long-term block cave scheduling ,

opened A major surge in block caving projects for base metal production is currently observed all over the world with various projects starting up or being near the end of the feasibility process, such as Oyu Tolgoi (Mongolia), Resolution (Arizona, US), Chuiquicamata (Chile), DMLZ ,

Oyu Tolgoi Copper-Gold Mine - ontarioexplorations101

Planning for the development of the No 2 Shaft had also been done as it was being currently designed as a 100 m diameter shaft, and will have one of the tallest shaft headframes in the world, measuring 96-m in height The Oyu Tolgoi Mine is a copper/gold porphyry deposit that is currently being mined by block caving methods

Discover our New Champions - Dassault Systémes

Dec 04, 2019· Barry has been a GEOVIA GEMS and PCBC site expert since 2006 across multiple block caving sites including Palabora Lift I as a Superintendent Cave Management, Freeport DOZ and DMLZ as a Cave Management Technical Expert, Palabora Lift II Superintendent Mine Design and now Oyu Tolgoi Technical & Integrated Planning

Oyu Tolgoi Phase 2: Plans, Issues and Risks

1) the Southern Oyu Tolgoi (SOT) open pit and 2) The deeper Hugo North “Lift 1”ore, mined using the underground block caving method Other mineral resources identified at the Oyu Tolgoi site but not proposed for the “Reserve Case” mine - “Phase 2” - are described as part of the long-term “Life of Mine Case” (OTTR 2014)

Newcrest eyes deeper mines, smaller footprint with block ,

Oct 28, 2019· Block caving was developed in the early 2000s in a collaboration by Newcrest, Rio Tinto , Freeport and Chile’s Codelco At its Cadia mine in Australia, Newcrest has dug down more than 1 km (06 .

(PDF) An Introduction to Block and Panel Caving | JOSE ,

An Introduction to Block and Panel Caving An In tro d u ctio n to Blo ck an d Pan e l Cavin g Allan Moss, General manager Rio Tinto Copper Projects f Agenda Context – why the interest in caving How block caving works and key technical considerations Risks Value drivers 1 March 2011 BMO Capital Markets 2011 Global Metals & Mining Conference 2 .

underground block caving mine - French translation – Linguee

Description and usage of the follo wing underground mining meth ods: room and pillar, long-hole, longwall, open stoping, shrinkage, cut and fill sub-level stoping, timbered stoping, top slicing, underhand and overhand stop ing, block caving, sub level caving, and vertical crater retreat engineerscanadaca engineerscanadaca

Addressing the Challenges and Future , - Cave Mining Forum

Caving methods can be used with any type of commodity since it is the geological and geotechnical context that is important There are many parameters to consider but typically the orebody needs to be at least 100 m thick for cave mining to be economical In the past, typical caving heights were 150-250 m

Rio Tinto: No Progress, Only Hollow Talk – Gold Equity

Apr 12, 2021· Based on my experience with block caving in Arizona, the depth of this deposit, and the problems you are having with building the block cave at Oyu Tolgoi, your design won’t work If you destroy Oak Flat, you will destroy our town’s chance to build a recreation based sustainable economy

Major Mines & Projects | Oyu Tolgoi Mine

Oyu Tolgoi consists of Oyut, Hugo Dummett (Hugo South and Hugo North) and Heruga deposits , included continued investment into the development of the Hugo North underground mine as a block caving operation (Phase 2 of the Project) Development of Phase 2 commenced in July 2016 , 15 m bench height (or batter) in all rock slop

ex03d03oyutolgoi_

Modifying factors Oyu Tolgoi manages five mining licences that cover the project area Three licences are held 100% by OT LLC (Manakht (Mining Licence 6708A, covering 4,533 ha), Oyu Tolgoi (Mining Licence 6709A, covering 8,490 ha), and Khukh Khad (Mining Licence 6710A, covering 1,763 ha))

Silvercorp Metals Inc - Mining 101

Many large-scale open-pit operations have plans to progress into block caving operations over time, including Oyu Tolgoi and Grasberg This mining method is typically used in situations where the orebody is both large and steeply dipping, and because of the depth below surface is ,

Addressing The Challenges And Future Of Cave Mining | SRK ,

Caving methods can be used with any type of commodity since it is the geological and geotechnical context that is important There are many parameters to consider but typically the orebody needs to be at least 100 m thick for cave mining to be economical In the past, typical caving heights were 150-250 m

Block Caving Mining Magazine - Redpath Mining

BLOCK ANd pANeL CAVING Block caving is an underground mining method that uses gravity to exploit massive, steeply dipping orebodies located at depth, particularly those with disseminated mineralisation or that are low-grade in nature, but too deep to be extracted using open pit methods Block caving also depends on insitu stresses and

SOMO Report Preamble: Assumptions | Mongolia Focus

Feb 01, 2018· The method also requires very high investment costs in constructing the underground facilities that allow for block caving while production costs are relatively lower than for other methods In the case of Oyu Tolgoi this means that Mongolian mining companies, including long-time copper miner Erdenet did not posses the expertise/technology to .

Entree files NI 43-101 feasibility study on Entree/Oyu

Jun 15, 2021· The size, geotechnical characteristics and depth of mineralization at the deposits on the Entree/Oyu Tolgoi JV Property make block caving the best suited mining method, and although the method has large, early capital investment requirements, it is highly ,

Overview of mine scheduling for Oyu Tolgoi Underground ,

Panel caving was selected for OT due to the large orebody and good ground conditions for caving The Hugo North orebody is approximately 225 m wide, 2,000 m long, and 1,000 m high The underground project currently underway is the planned first lift of the orebody, with a lift height of +500 m and an average column height of 350 m

The original footprint was about 16 to 18 square miles ,

underground mining block caving, or panel caving, but for sure the first 20 years is gonna be open pit, and during that 20 years you’ll , Well who’s gonna stop a mine that has 180— at a 160,000 metric tons , Oyu Tolgoi You know where there’s an open pit and there’s underground Title: Pebble Tapes 1 - Scale of Mine - Transcript .

Progress on Oyu Tolgoi? | Mongolia Focus

Sep 25, 2014· Two pieces of news came in the last days regarding the giant Oyu Tolgoi project which is controlled by Rio Tinto but in which the government of Mongolia holds a 1/3 stake: First, a tax dispute seems to have been settled on mutually agreeable terms, but perhaps more importantly, a new feasibility study that examines the continued construction of .

CSOs: Oyu Tolgoi non-compliant with IFC Performance ,

Oyu Tolgoi: Key Recommendations February 4, 2013 , The company should stop all work on the Undai River diversion, which has moved forward without appropriate consultation with herders , Block Caving: Block caving is a method of mining in which workers remove the support rock from beneath the ore bodies, resulting in cave-ins, which .

Rio Tinto confirms $675B development capital for Oyu ,

Dec 17, 2020· Rio Tinto unveiled a pathway for the ongoing development of the underground project at Oyu Tolgoi in Mongolia, one of the largest known copper and gold deposits in the world (earlier post)The definitive estimate details how Oyu Tolgoi underground will achieve sustainable production for Panel 0 by October 2022 for development capital of $675 billion

Rio Tinto: No Progress, Only Hollow Talk - London Mining ,

Apr 08, 2021· Based on my experience with block caving in Arizona, the depth of this deposit, and the problems you are having with building the block cave at Oyu Tolgoi, your design won’t work If you destroy Oak Flat, you will destroy our town’s chance to build a recreation based sustainable economy

Oyu Tolgoi Phase 2: Plans, Issues and Risks: Executive Summary

The Block caving mining method chosen for underground mining at OT Phase is expected to result in surface subsidence across an eight (8) square kilometer area The 2005 Oyu Tolgoi Integrated Development Plan (IDP) Executive Summary describes the block cave underground mining method as “[a] safe, proven, and highly productive method

Entrée Resources Reports Updated Feasibility Study for its ,

Jan 15, 2018· The size, geotechnical characteristics and depth of mineralization at the deposits on the Entrée/Oyu Tolgoi JV Property make block caving the best ,

Development planning for the Oyu Tolgoi panel cave mine

Panel caving was selected for Oyu Tolgoi due to the large orebody and generally weak ground conditions The Hugo North orebody is approximately 225 m wide, 2,000 m long, and 1,000 m high The underground project currently underway is the planned first lift of the orebody, with a lift height of +500 m and an average column height of 350 m

Via Electronic Mail Sir Suma Chakrabarti

a Block Caving: Block caving is a method of mining in which workers remove the support rock from beneath the ore bodies, resulting in cave-ins, which fracture and drop blocks of the ore body, as well as causing subsidence of the land surrounding the cave-in zone This land will be too physically unstable to

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