Geotechnical analysis and ground support selection for the Oyu Tolgoi
Abstract: Oyu Tolgoi (OT), in the South Gobi region of Mongolia, is one of the largest known copper and gold deposits in the world. At peak production, Oyu Tolgoi is expected to produce 500,000 tonnes per annum of copper. The Panel 2 (PC2) crusher is a key component of the OT underground ore handling system, which has a total capacity of 95 ktpd; the PC2 crusher …
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Oyu Tolgoi Gold and Copper Project, Mongolia
The Expanded Case envisions the ramping up of production from the underground block-cave mines and the doubling of the capacity of the concentrator, including the addition of …
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Oyu Tolgoi battery-electric equipment developments intensify
The Oyu Tolgoi underground technology team has already conducted initial energy studies for the Hugo North Lift 1 caving operation and is now developing strategies to further integrate additional BEV technology into the mine. Oyu Tolgoi, which began shipping products to customers from its open-pit operations in July 2013, is managed by Rio Tinto.
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Rope up at Oyu Tolgoi Mine Shaft 2 completed ahead of schedule
Oyu Tolgoi consists of a number of ore deposits that contain copper, gold and silver, with over 80 percent of the total value of Oyu Tolgoi being underground. ... The plan is to develop an underground mining complex in which the ore is extracted using the Block Caving mining technology and transported to the surface for processing. 31 kms of ...
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Oyu Tolgoi | Global
Oyu Tolgoi is one of the most exciting developments in copper and gold mining in the last several decades. ... Average tunnel height and width. ... Deepest reaching 1.3KM. See how we use block caving to transport the ore body at Oyu Tolgoi …
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Navigating change: Lessons l earned from engaging …
Spanning 2.5 km in length and 300 m in width, this ore body is accessed through a highly advanced mechanized mining technique known as block caving.
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Rio Tinto confirms $6.75B development capital for Oyu Tolgoi
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 $6.75 billion.
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First undercut rings fired at Oyu Tolgoi block cave mine in …
Following a new long-term agreement between Rio Tinto, Turquoise Hill Resources (TRQ) and the Government of Mongolia, underground production has formally started at Oyu Tolgoi. In a major step forward, and after excavation of over 90 km of tunnels over 11 years, the first undercut rings were recently fired at the Oyu Tolgoi underground block cave …
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Can Mongolian copper power the green revolution?
To access the deposits at Oyu Tolgoi, Rio is using a method known as block caving. This involves digging below the ore body and collecting the falling rock, which is then crushed and transported ...
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Ground support strategy for optimisation of time schedule, Oyu Tolgoi
Abstract: Oyu Tolgoi is an underground block cave in the initial development stage, where rapid development, yet comprehensive, ground support is required to begin undercutting and start production. High variability in the rock mass, high stress and deep mining requires various ground support standards and sequences to provide initial stability during development and long-term …
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Oyu Tolgoi: engineering a Mongolian caving dynasty
DOI: 10.36487/acg_repo/2205_43 Corpus ID: 251749817; Oyu Tolgoi: engineering a Mongolian caving dynasty @article{Stegman2022OyuTE, title={Oyu Tolgoi: engineering a Mongolian caving dynasty}, author={Craig Stegman and Otgonbayar Togtokhbayar and Steffan Herselman and Bayasgalan Altankhuu}, journal={Caving 2022: Fifth International Conference on Block and …
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(PDF) Oyu Tolgoi: A New Era for Mongolian Mining
Oyu Tolgoi and Rio Tinto are also actively fostering a greater understanding of block cave mining in the wider Mongolian mining community through sponsored conferences and technical seminars, which help explain the complexities of the Oyu Tolgoi project. Caving 2022, Adelaide, Australia 633 Oyu Tolgoi: engineering a Mongolian caving dynasty CL ...
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Oyu Tolgoi: Key Recommendations
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 ...
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Raisebore stability and support at deep depth and highly defected …
Oyu Tolgoi (OT) has over 50 raises bored to support the ventilation and material handling for the block cave. Mining of the raisebores occurred at depths of 1,200 m to 1,400 m below the surface ...
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Authors | MassMin 2024
• The session chair will ask you to stop the presentation when your time is up. ... Denver Birch, Ferric Mardiansyah, Herry Purwanto, Oyu Tolgoi Mine, Mongolia ; Geotechnical Data Sufficiency for Reliable Mine Design During Mining Studies, ... Methodology to determine the undercut height in Block/Panel Caving, Danko Morales, Juan Pablo ...
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Maintaining ground support capacity to anticipate stress …
600 m in ore column height. It is broken into Lift 1 with the mining panels of P0, P1, P2N, P2S and Lift 2. The OT Hugo North Lift 1 P0 block (OT P0 block), approximately 320 m in width and 280 m in length, developed a production level at a depth of 1,300 m from the surface, employing an advanced undercut method with an apex level.
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Construction of the Oyu Tolgoi underground mine started today
In order to bring these resources into the economic circulation, block caving technology is being used from today at the Oyu Tolgoi underground mine. ... Oyu Tolgoi is a global benchmark of how to carefully use water resources and recycling, and supported by more than 600 Mongolian suppliers, and 96 percent of its employees are Mongolian" ...
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Oyu Tolgoi | Mongolia
Oyu Tolgoi is one of the largest known copper and gold deposits in the world. It is also one of the most modern, safe and sustainable operations in the world ... Average tunnel height and width. ... Deepest reaching 1.3KM. See how we use block caving to transport the ore body at Oyu Tolgoi Growth. Global demand for copper is set to grow, driven ...
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Oyu Tolgoi Phase 2: Plans, Issues and Risks: Executive …
Oyu Tolgoi Phase 2: Plans, Issues and Risks: Executive Summary ... plan, describes the block caving underground mining technology planned for the large deep ore body to be mined in Phase 2 and environmental impacts and reclamation potential of ... height in excess of 20 m, which might be manifest as a single cliff or multiple smaller cliffs. ...
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Building one of the tallest shaft headframes in the world
Shaft No. 2 is currently being designed at a 10.0 m diameter, and will have one of the tallest shaft headframes in the world, measuring over 96 m high. The largest economic …
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Rio Tinto Mine Delay Shows Block Caving, Copper Supply Risk
Rio Tinto Mine Delay Shows Block Caving, Copper Supply Risk. Wed 24 Jul, 2019 - 12:28 PM ET. ... Capital costs for block cave mining are significant at more than $5 billion for large-scale block caves like Oyu Tolgoi, according to CRU. Rio Tinto also pushed back expectations for initial production by 16 months to 30 months to between May 2022 ...
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AutoMine® equipped LHDs helping Oyu Tolgoi maximise
However, the bulk of the ore is to be extracted extracted from the underground reserves through the mining method known as block caving. In January this year, the Oyu Tolgoi Board gave the green light for underground operations to begin and sustainable underground production is expected in the first half of 2023.
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Development planning for the Oyu Tolgoi panel cave mine
Oyu Tolgoi is a large panel cave mine currently under construction in the Gobi Desert of Mongolia. Due to the overall length of the Hugo North orebody at Oyu Tolgoi stretching almost 2 km, the Lift 1 production area has been split into three production panels.
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Stope Height At The Oyu Tolgoi Block Caving
Fitch Ratings-Chicago-24 July 2019: The delay and higher than expected cost of Rio Tinto's Oyu Tolgoi mine project highlights the risks associated with block caving, an underground hard …
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Oyu Tolgoi: light at the end of the tunnel?
In December 2015, Oyu Tolgoi LLC signed a finance deal for $4.4bn with a group of lenders to expand its copper-gold mine underground. The Mongolian mine, already in its open-cut phase, has shipped more than 1.5 …
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Australian Centre for Geomechanics | Conference Paper: …
Abstract: The Oyu Tolgoi underground mine is one of the largest copper-gold mines in the world, situated in the southern Gobi Desert region of Mongolia. The mine has an expected lifespan of over 50 years, and is likely to become one of the top copper – gold producers globally. For the underground mining operation, Oyu Tolgoi adopts the block caving method, which entails …
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Oyu Tolgoi Phase 2: Plans, Issues and Risks: Executive …
What is Block Cave mining and what are some of its environmental impacts? The Block caving mining method chosen for underground mining at OT Phase is expected to result in surface …
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Major Drilling helping narrow down Oyu Tolgoi orebody
These trackers are lowered through a specially-drilled borehole into the Oyu Tolgoi orebody below. Block cave magnetic beacons are embedded into the orebody and spun to create a magnetic field. ... The cables are attached to the duct rodder, which is lowered from a winch system. Once the trackers are placed, block caving techniques will ...
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Oyu Tolgoi unearthed | Undermining Mongolia
To access the underground copper and gold ore, block caving mining methods are used, reaching up to 1,300 metres below ground and involving 200 kilometres of tunnels and 10 kilometres of …
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Oyu Tolgoi and Rio Tinto partnership with Palantir Technologies …
Abstract: Oyu Tolgoi, a copper and gold mine in Mongolia, is one of the deepest and largest block cave mines in the world. The depth and size, combined with demanding rock conditions, brings new technical and operational challenges in providing effective geotechnical risk management.
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