Ridgeway Gold and Copper Mine, New South Wales Mining

The Ridgeway Deeps block cave project involved development of resources below the Ridgeway Underground mine at a depth of 300m to about 1,100m. It is the first natural caving operation and the deepest block cave in Australia. Ridgeway Deeps was developed at a cost of A$525m by Ausenco.

Major Mines & Projects Ridgeway Mine

Jun 10, 2019 Underground mining of the Ridgeway deposit commenced in 2002, with ore being supplied to the new 4 Mtpa Ridgeway concentrator adjacent to the Cadia concentrator. The upper portion of the Ridgeway deposit has been mined using sub-level caving (SLC).

Characterizing Caving Induced Seismicity at Ridgeway Gold Mine

Sublevel caving was initiated at the Ridgeway Gold mine in May 2000. A seismic system was used to monitor the progression of the cave. Since caving is a progressive non-blasting mining method

Some comments regarding development drifting practices

Figure 2 Longitudinal vertical section through the typical sublevel caving layout, Ridgeway Mine (after Newcrest Mining Company, 2009, written comm.) In this particular case: sublevel interval = 30 m sublevel drift spacing = 14 m (c-c) sublevel drift dimensions = 6 m (wide) by 4.7 m

Sublevel cave mining: unearthing new opportunities

Sublevel caving: unearthing new opportunities . The known resource base for base metals is increasingly comprised of large scale, low-grade deposits, situated at increasing depths where underground cave 1 mining methods are the only viable means of economic extraction.. In the spectrum of underground mining methods, caving methods are the lowest cost and most productive.

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma Issuu

Jun 25, 2010 Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now

Cave mining 2040: advancing cave mining to meet future

Jun 15, 2018 7. Sublevel caving. Sublevel caving is a method often evaluated in parallel with block and/or panel caving options. It requires multiple levels of development and ongoing ring blasting for production. Sublevel caving allows for a more selective extraction but typically achieves lower production rates than block and panel caving methods.

Characterizing Caving Induced Seismicity at Ridgeway Gold Mine

Sublevel caving was initiated at the Ridgeway Gold mine in May 2000. A seismic system was used to monitor the progression of the cave. Since caving is a progressive non-blasting mining method

Parameters influencing full scale sublevel caving material

When applying sub-level caving method to the mining of steeply dipping narrow veins (particularly stock worked narrow veins with poorly defined host rock contacts), the flow of ore can be assumed

Newcrest to sink $376m into sub-level cave mine

Newcrest has chosen to develop Ridgeway using a bulk mining method called sub-level caving, which is ideally suited to the vertical pipe-like orebody. It has a typical diameter of 180m that extends from 475m to 1,025m vertical depth, beneath which it is open.

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma Issuu

Jun 25, 2010 Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now

Underground mining (hard rock) Wikipedia

The mining method selected is determined by the size, shape, orientation and type of orebody to be mined. The orebody can be narrow vein such as a gold mine in the Witwatersrand, the orebody can be massive similar to the Olympic Dam mine, South Australia, or Cadia-Ridgeway Mine, New South Wales.The width or size of the orebody is determined by the grade as well as the distribution of the ore.

Caving Underground Mining Methods (longwall, Sublevel

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.

Keeping up with caving REDPATH MINING

Sub-level caving also allows for a slightly more selective extraction of the orebody than is attainable through block or panel caving. Production rates achieved in sub-level caving operations are typically lower than for block caves but higher than for stoping methods.” CAVING requIremeNts Caving is a non-selective, bulk mining method.

Major Mines & Projects Cadia Valley Mine

SLC mining is now complete. The Ridgeway Deeps Lift 1 block cave operation was mined between 2007 and 2015 and was Newcrest’s first block cave operation. The change to block caving was introduced after the identification that the grade profile for Ridgeway was declining to the point where subsequent SLC levels below the 5040 mRL were uneconomic.

Cave Mining Today's Challenges SRK Consulting

The industry perception is that sublevel caving is a "dirty mining method" (i.e. high dilution and low recovery). However, there were several successful sublevel cave mines executed in the past. The success of a sublevel cave mine is not by chance they are engineered to perform.

Cave mining 2040: advancing cave mining to meet future

Jun 15, 2018 7. Sublevel caving. Sublevel caving is a method often evaluated in parallel with block and/or panel caving options. It requires multiple levels of development and ongoing ring blasting for production. Sublevel caving allows for a more selective extraction but typically achieves lower production rates than block and panel caving methods.

Paper: Key geotechnical knowledge and practical mine

Abstract: Cadia Valley Operations (Cadia) embarked on a path of cave mining in the early 2000s with the establishment of the Ridgeway sublevel cave. The success of that mine led to a significant expansion into block caving operations, first at Ridgeway Deeps,

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma Issuu

Jun 25, 2010 Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now

Analysis of the surface subsidence induced by sublevel

Jun 24, 2020 This paper describes a case study of the surface subsidence induced by sublevel caving without sill pillars in the Maogong Iron Mine, China. A comprehensive analysis based on GPS monitoring and numerical simulation is proposed and used to analyze the surface subsidence characteristics and damage range. GPS monitoring results showed that the vertical displacement

State-Of-the-Art DiVA portal

Sublevel caving is an underground mass mining method used for extracting different types of ores from the earth crust. Mines using sublevel caving (SLC) as the primary mining method are generally highly mechanized with standardized and independent unit operations. Mine development for caving

Newcrest to sink $376m into sub-level cave mine

Newcrest has chosen to develop Ridgeway using a bulk mining method called sub-level caving, which is ideally suited to the vertical pipe-like orebody. It has a typical diameter of 180m that extends from 475m to 1,025m vertical depth, beneath which it is open.

Paper: Key geotechnical knowledge and practical mine

Abstract: Cadia Valley Operations (Cadia) embarked on a path of cave mining in the early 2000s with the establishment of the Ridgeway sublevel cave. The success of that mine led to a significant expansion into block caving operations, first at Ridgeway Deeps,

Sublevel Caving Technique Mining Drilling Rig

Sublevel Caving Technique Free download as PDF File (.pdf) or read online for free. An underground mining method used in large, steeply dipping orebodies where the wall rock is of an incompetent nature. Parallel drives are developed in the ore on equally spaced levels. The ore is then drilled and blasted using longholes between levels, often in a circular or fan pattern, on retreat.

State-Of-the-Art DiVA portal

Sublevel caving is an underground mass mining method used for extracting different types of ores from the earth crust. Mines using sublevel caving (SLC) as the primary mining method are generally highly mechanized with standardized and independent unit operations. Mine development for caving

SUBLEVEL CAVING TECHNIQUE by Partha D Sharma Issuu

Jun 25, 2010 Sublevel caving is usually carried out when mining of the orebody through an open pit method is no longer economically feasible. Mining now

Cave Mining Today's Challenges SRK Consulting

The industry perception is that sublevel caving is a "dirty mining method" (i.e. high dilution and low recovery). However, there were several successful sublevel cave mines executed in the past. The success of a sublevel cave mine is not by chance they are engineered to perform.

Analysis of the surface subsidence induced by sublevel

Jun 24, 2020 This paper describes a case study of the surface subsidence induced by sublevel caving without sill pillars in the Maogong Iron Mine, China. A comprehensive analysis based on GPS monitoring and numerical simulation is proposed and used to analyze the surface subsidence characteristics and damage range. GPS monitoring results showed that the vertical displacement

Cave mining 2040: advancing cave mining to meet future

Jun 15, 2018 7. Sublevel caving. Sublevel caving is a method often evaluated in parallel with block and/or panel caving options. It requires multiple levels of development and ongoing ring blasting for production. Sublevel caving allows for a more selective extraction but typically achieves lower production rates than block and panel caving methods.

Second International Symposium on Block and Sublevel Caving

An integrated finite/discrete element method discrete fracture network synthetic rock mass approach for the modelling of surface subsidence associated with panel cave mining at the Cadia East underground project Proceedings of the Second International Symposium on Block and Sublevel Caving, Caving 2010

Types of Mining Methods Sell Side Handbook

Mar 09, 2018 As compared to other mining methods, sublevel caving allows for a quicker and less expensive mining process. However, sublevel caving leads to greater dilution and is therefore used for lower ore bodies. The costs for sublevel caving range from $5-8$/tonne. Block Caving. Block caving is the logical step-up of sublevel caving.

Underground Mining Methods and Equipment

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

Edumine Underground Mining Methods and Equipment

Oct 15, 2019 Underground Mining Methods and Equipment is intended as both a course and a technical reference for an audience of engineers, operators, contractors, consultants, regulators, practising geoscientists and students in the mining sector. The course provides a comprehensive introduction and reference for those who require a solid grounding in selection, design and development of mining methods

Sublevel caving: Engineered to Perform Elexon Mining

Oct 02, 2013 Source: Mining Magazine, September 2013. Sub-level caving is a highly efficient, top-down, underground bulk mining method. Recent developments in sub-level cave mining have advanced the understanding of the technique and its production performance, which allow it to now be considered as a highly viable alternative to open stoping and, in some cases, even to block caving.

Calibration of a mixing model for sublevel caving UBC

Sublevel caving (SLC) is an underground mass mining method where the orebody is divided into a regular network of tunnels. The ore is extracted by level working downwards through the orebody. The caved waste from the overlying rock mass fills the void created by ore extraction generating a dynamic mixing situation between the broken ore and the waste (dilution) from upper levels. The dynamic