caving technology underground rock flow

caving technology underground rock flow

Cave tracker system: pioneering flow monitoring for

2014-11-3  The Cave Tracker technology uses ruggedised beacons and detectors deployed in and around the orebody, enabling real-time 3D tracking of cave

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Block caving: A new mining method arises Geoengineer.org

Block caving is a new alternative method of developing new mines or extending the operation of open pits. Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own weight. It is the underground version of open pit mining.

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Block Caving: Mining Specialization E MJ

2020-4-8  Speaking at ExpoMin 2012, the head of the Rock Flow project for Caterpillar, Markus Frenzel, gave some details of achievements from the first proof-of-concept trials at Codelco’s Salvador mine. Here, four Rock Feeders were

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Determination of drawpoint spacing in panel caving: a

2013-1-15  Block caving and its variations are massive underground methods that are commonly applied to massive low-grade mine deposits. Block caving methods rely on the use of gravity to break and transport large amounts of caved rock from their in situ location to drawpoints located at a production level. Thus, in caving methods, the flow characteristics of

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Australian Centre for Geomechanics Conference Paper: A ...

Even though the gravity flow of caved rock has been studied almost since caving methods were introduced, its mechanisms are still far from understood. One key aspect of gravity flow that has the potential to significantly accelerate dilution ingress is the percolation of fine particles.

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Rio Tinto partners with CRCMining on block caving

2014-1-31  Rio Tinto has partnered with CRCMining, Newcrest, and Elexon Electronics to develop cave flow tracking systems for use in block caving operations. CRCMining’s cave tracking technology uses 3D ...

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Numerical modeling of influence parameters in cavabililty ...

2018-5-1  Block caving is a system of underground mining that removes support from under an orebody. The principal concept behind caving is to undercut the rock mass causing it to cave or unravel naturally to form broken material rather than using blasting to

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Numerical simulation of the top coal caving process using ...

Based on the loose medium flow field theory, the loose top-coal drawing law of longwall top-coal caving (LTCC) mining technology is studied by using self-developed three-dimensional (3D) test device. The loose top-coal drawing test with shields and the controlled test without shields are performed in the condition without any boundary effect.

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Geomechanics of Cave Mining Hybrid Seminar Australian ...

2021-6-14  Head of Innovation Technology, Elexon Mining Dylan has been working in the mining industry for 15 years and has a deep interest in the science of rock mechanics, flow and stability. He was the system architect and project manager for the Cave Tracker and Smart Marker Systems at Elexon Mining.

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PAPER OPEN ACCESS Functional schemes of automated

2020-3-14  Bridging of coal, which prevents rock flow to the feeder pan, is detected by the ultrasonic sensors. The ultrasonic range-finding sensors oriented at angle upward detect voids in the flow. The sensors operate continuously and trace distances from the protection enclosure to the objects in the work zone.

Read More
Cave tracker system: pioneering flow monitoring for

2014-11-3  The Cave Tracker technology uses ruggedised beacons and detectors deployed in and around the orebody, enabling real-time 3D tracking of cave material. With capability of monitoring every few days for over 10 years, the system will give a

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Optimization of Caving Technology in an Extrathick Seam ...

2021-8-4  The optimization of top coal caving technology is an efficient method to improve the recovery ratio in longwall top coal caving (LTCC). In extrathick coal seams, the conventional single-opening sequential caving technology (SOSCT) shows the following problems: low recovery ratio, high rock mixed ratio, and poor drawing balance. For these problems, this research verifies the applicability of ...

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Block caving: A new mining method arises Geoengineer.org

Block caving is a new alternative method of developing new mines or extending the operation of open pits. Block caving is an underground hard rock mining method that involves undermining an ore body, allowing it to progressively collapse under its own

Read More
A Continuous Conversion Technology from Top Coal

The technology helps operations overcome challenges with mining thick bifurcated coal seams, particularly the challenge of rock-parting seams affecting the caving of TCC mining methods.

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Australian Centre for Geomechanics Conference Paper: A ...

Even though the gravity flow of caved rock has been studied almost since caving methods were introduced, its mechanisms are still far from understood. One key aspect of gravity flow that has the potential to significantly accelerate dilution ingress is the percolation

Read More
Numerical modeling of influence parameters in cavabililty ...

2018-5-1  Block caving is a system of underground mining that removes support from under an orebody. The principal concept behind caving is to undercut the rock mass causing it to cave or unravel naturally to form broken material rather than using blasting to fragment the in-situ rock mass.

Read More
[PDF] Determination of drawpoint spacing in panel caving ...

Block caving and its variations are massive underground methods that are commonly applied to massive low-grade mine deposits. Block caving methods rely on the use of gravity to break and transport large amounts of caved rock from their in situ location to drawpoints located at a production level. Thus, in caving methods, the flow characteristics of the caved rock are fundamental to determining ...

Read More
Block Caving: Mining Specialization E MJ

2020-4-8  Speaking at ExpoMin 2012, the head of the Rock Flow project for Caterpillar, Markus Frenzel, gave some details of achievements from the first proof-of-concept trials at Codelco’s Salvador mine. Here, four Rock Feeders were used in conjunction with a 75-m-long Rock Mover chain conveyor rated at 900 mt/h capacity.

Read More
Determination of drawpoint spacing in panel caving: a

2013-1-15  Block caving and its variations are massive underground methods that are commonly applied to massive low-grade mine deposits. Block caving methods rely on the use of gravity to break and transport large amounts of caved rock from their in situ location to drawpoints located at a production level. Thus, in caving methods, the flow characteristics of

Read More
Productivity of a Continuous Mining System for Block ...

2016-10-12  Block caving mining is one of the most cost-effective underground mining methods. The method has particular relevance in the Chilean mining industry, where approximately 40 % of the Chilean national copper production comes from block caving mines (El Teniente, Andina, and El Salvador, and in the near future, Chuquicamata).

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Underground Mining Methods and Equipment

2020-8-25  Caving methods are defined as those associated w ith induced, controlled, massive caving of the ore body, the overlying rock, or both. Th e exploitation workings in caving methods are designed to collapse, with intentional caving of the ore and/or host rock. The three major caving methods are: • Longwall mining • Sublevel caving

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Block Cave Underground Mine - ESDM

2020-10-21  6 What and Why Block Caving? What : Block (gravity) caving is a bulk underground mining method, which allows large low-grade deposits to be mined underground. This method involves undermining the orebody to make it collapse under its own weight into a series of chambers from which the ore extracted.

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A Continuous Conversion Technology from Top Coal

The technology helps operations overcome challenges with mining thick bifurcated coal seams, particularly the challenge of rock-parting seams affecting the caving of TCC mining methods.

Read More
Block Caving: Mining Specialization

2014-7-20  Speaking at ExpoMin 2012, the head of the Rock Flow project for Caterpillar, Markus Frenzel, gave some details of achievements from the first proof-of-concept trials at Codelco’s Salvador mine. Here, four Rock Feeders were

Read More
Paper: Cave propagation factor for caving rate and ...

Pierce, M 2010, ‘A Model for Gravity Flow of Fragmentated Rock in Block Caving Mines’, Ph.D. Thesis, University of Queensland. Rogers, S, Elmo, D, Webb, G Catalan, A 2010, ‘A discrete fracture network based approach to defining in situ, primary and secondary fragmentation distributions for the Cadia East panel cave project’, in Y ...

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[PDF] Determination of drawpoint spacing in panel caving ...

Block caving and its variations are massive underground methods that are commonly applied to massive low-grade mine deposits. Block caving methods rely on the use of gravity to break and transport large amounts of caved rock from their in situ location to drawpoints located at a production level. Thus, in caving methods, the flow characteristics of the caved rock are

Read More
Inside block caving: the deep mining method of the future ...

The role of block caving Although the caving mining system was initially used for shallow orebodies, it has recently been applied at depths of 2km underground. According to Suorineni, “caving heights have also increased drastically from

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Rio Tinto partners with CRCMining on block caving

2014-1-31  Rio Tinto has partnered with CRCMining, Newcrest, and Elexon Electronics to develop cave flow tracking systems for use in block caving operations. CRCMining’s cave tracking technology uses 3D ...

Read More
Study on the Rock Mass Caving and Surface Subsidence ...

To deeply understand the mechanism of the rock mass caving and associated surface subsidence during sublevel caving mining, the Xiaowanggou iron mine was selected as an engineering project case study. The study area was analyzed by means of an in situ geological investigation and numerical simulation. First, a borehole television (BHTV) system and a GPS monitoring

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PAPER OPEN ACCESS Functional schemes of automated

2020-3-14  Bridging of coal, which prevents rock flow to the feeder pan, is detected by the ultrasonic sensors. The ultrasonic range-finding sensors oriented at angle upward detect voids in the flow. The sensors operate continuously and trace distances from the protection enclosure to the objects in the work zone.

Read More