Advantages and Disadvantages of Open Cut Overburden …
Advantages and Disadvantages of Open Cut Overburden Techniques Dragline Advantages Reduced operating costs compared to truck and shovel. Higher overall …
A review on existing opencast coal mining methods within …
Open cut coal mining equipment used in Australia [13] Characteristics of Dragline Operations (Average per Mine) Labor productivity (output index divided by …
Open Cut Coal
8 ORICA MINING SE RVICES OPEN CUT COAL 9 The Fortis™ System is a premium range of enhanced performance bulk explosives specifically designed for use in wet blasthole conditions. Utilising proprietary sensitising technology, the Fortis™ System is reliable in the most difficult blasting conditions and can be confidently used in˜open cut …
Major Mines & Projects | Coppabella Mine
Conventional open cut mining methods are used at the CMJV Coal Mines. Coppabella utilizes a dragline and two electric rope shovels to perform the majority of overburden waste removal, supplemented by diesel hydraulic excavators, which are also used to mine the coal. Moorvale and Moorvale South use diesel hydraulic excavators only.
Dragline Operations at the Callide Open Cut Coal Mine
In any strip coal mining operation the aosL important single operating unit is the dragline. Because the capital and operating costs of a dragline are high, it is desirable to operate these machines at their maximum efficiency. Thiess Bros. Pty. Limited operate a Bucyrus-Erie 1350 Walking dragline at their Callide coal mine. The operating conditions at the …
Case Study – Dragline Design | MEC Mining
INTRODUCTION. MEC Mining enabled a productive open cut coal mine to optimise an existing dragline operation, thereby decreasing truck and shovel use and maintaining coal targets. The company approached MEC to provide an analysis of options that would maintain budgeted coal uncovery while maximising dragline efficiency in a …
Major Mines & Projects | Dawson Mine
Dawson mine is a large open-cut coal mining operation in Queensland that historically had been operated as a strip mine, with multiple draglines exposing coal in a westerly direction and dumping spoil to the east. In response to a shortage of dump space, insufficient progress with progressive rehabilitation and the ongoing disturbance of land ...
Paper: Geomechanics of Australian open cut coal mining
An overview of analytical tools is provided for defect mapping, slope stability, and deformation and groundwater pressure modelling. Discussion of geotechnical aspects of final post-mining landforms is also provided. Keywords: open cut coal mining, shear strength, extension, deformability, hydraulic conductivity, subsidence References:
ACARP Abstract
Reduction in the cost of overburden removal from open cut coal mines has been identified as the most important means of improving the economic performance of Australian open cut coal mines. The automation of the dragline dump cycle has been developed to improve the efficiency of this mining process. In addition to the potential productivity ...
Dragline Digging Methods in Australian Strip Mines
As open cut coal mines move into deeper areas andl the stripping ratios increase, the relative cost of overburden removal also increases. It therefore becomes even more …
Coppabella Coal Mine
Coppabella mine is an open-cut operation located 140km south-west of the Mackay region close to the Nebo and Moranbah townships in Australia. The mine includes four pits – Johnson, South, Creek and East Pits. ... A Marion 8200 dragline is used on the final pass to coal in the central region. The exposed coal is mined using hydraulic …
Economical Operation & Estimation of Operating Cost of Draglines …
Open cut mining in Australia is facing the greatest challenge in its hilstory in attempting to compete not only with other operations internationally, but also with underground operations domestically. ... (2010) islo 2, pp 95101 Reddy, V.R. & Dhar, B.B., "Dragline Performance in Open pit Indian coal mines", Procs int Conf on Mine Planning ...
Hunter Valley Operations
Mining and production. Hunter Valley Operations (HVO) is a multi-pit open cut mine, using a dragline truck and shovel method. The operation's employees work in shifts to keep the mine operational 24 hours a day, seven days a week. Operations are centred in the Whittingham Coal Measures of the Hunter Coalfield, which is part of a Permian coal ...
New Hope Group
Bengalla is a single pit open cut mine, using a dragline, truck and excavator method. The mine's employees work in shifts to keep the mine operational 24 hours a day, seven days a week. Geologically the operation is situated in a Permian basin called the Sydney basin, and mines the Whittingham Coal Measures of the Hunter Coalfields.
Coal mining
Auger mining is usually associated with contour strip mining. With this method, the coal is removed by drilling auger holes from the last contour cut and extracting it in the same manner that shavings are produced by a carpenter's bit. Coal recovery rates approach 60 percent with this method.
A dragline simulation model for strip mine design and …
A specific simulation language, "DSLX", was used to program seven common and innovative dragline methods currently used in Australian open cut mines. The DSLX …
Major Mines & Projects | Newlands Mine
Dragline; Production Start ... which includes an open cut mine and the coal handling and processing plant (CHPP) within existing mining leases, the Eastern Creek open cut mine, the Suttor Creek open cut mine and the Wollombi open cut mine. The Wollombi pit contains 4 mineable coal seams, which range from 2.6 to 9.6m (8.5 to 31.5 ft) in ...
Elimination of structure controlled highwall failures at an open cut …
Open cut coal mining advances strip by strip of around 60–120 m width depending on machinery and. geological conditions. The in situ rock mass slope located in the pit advancing directio n is ...
(PDF) Surface Coal Mining Methods in Australia
Initially open cut mines in coal mining was cl assified as strip mines where draglines were used, and open cut mines where truck and shovels were used. …
A dragline simulation model for strip mine design and development
During recent years, the Australian coal industry has increasingly used large walking draglines as the dominant waste removal equipment in open cut coal mines. Because of the nature of the coal formations, dragline operations in Australian coal mining situations are quite complex and draglines are frequently used in applications beyond their normal …
Dragline DTM system
Real‐Time Dragline DTM system. In surface mining, the reduction of overburden removal costs have been identified as an important means of improving the economic …
2021 Curragh- Mining Accident Database
21/11/2021 - Curragh - Crush Injury. A 54-year-old mine worker has been killed in an accident at an open-cut coal mine in central Queensland, police have confirmed. A Resources Safety and Health Queensland (RSHQ) spokesperson said the worker killed on Sunday was fatally injured while on duty. "The incident occurred at approximately …
Advantages and Disadvantages of Open Cut …
The principal black coal producing basins in Australia are the Bowen (Queensland) and Sydney (New South Wales) Basins, and the majority of mines in these areas are open cut (Scott et al. 2010 ...
Economical Operation & Estimation of Operating Cost of Draglines …
Open cut mining in Australia is facing the greatest challenge in its hilstory in attempting to compete not only with other operations internationally, but also with underground operations domestically. ... pp 95101 Reddy, V.R. & Dhar, B.B., "Dragline Performance in Open pit Indian coal mines", Procs int Conf on Mine Planning and Equipment ...
Draglines 101: How They Do It | Mining Digital
How they work. Utilized in a similar fashion as cranes, draglines are used primarily for open-pit operations to dismantle and transport materials. In strip mining operations, draglines are used to remove overburden from mines. Unlike most mining equipment, the bulk of draglines are not diesel-powered. Their power consumption …
Open Cut Coal – Bulk Dozer Push | MEC Mining
With the spike in the coal price many open cut coal mines are looking at an increase in the amount of dozer push as a strategy to increase the overall stripping cost and uncover more coal. The flexibility of bulk dozer push allows it to respond effectively to changes in the schedule. Bulk dozer push can be applied in most situations where the ...
Surface Coal Mining Methods in Australia
Slushers and dragline hoppers, and Surface continuous miners. Initially open cut mines in coal mining was classified as strip mines where draglines were used, and open cut …
Drayton Mine, New South Wales
Drayton mine is situated in the Upper Hunter Valley of New South Wales, Australia. The mine produces thermal coal and has been operating since 1983. The mine is part of the 2,100km² Hunter Coalfield, the largest coal-producing region in New South Wales. The lease size of the mine is 1,768ha. Anglo American is the operator of the …
Dragline Digging Methods in Australian Strip Mines
As the fIrst step a questionnaire was prepared and sent to twenty eight open cut coal mines with a total of about sixty large walking draglines as the major overburden removal units. The questionnaire: sought information about general geology of the coal deposit, the mine's dragline(s) and other major equipment specifications and details of the ...
Dragline Operators for an Open Cut Coal Mine Site
Experienced Dragline Operators for an Open Cut Coal Mine site in the Bowen Basin near Moranbah. Theclient is a Tier 1 mining house who requires skilled, experienced and safety minded individuals for ongoing opportunities. One Key Resources is a specialist provider of managed workforce services and labour hire to the mining, oil & gas and ...
Dragline Excavators and Mining
It was first put to work at the Tagebau Hambach open pit coal mine, removing overburden. The Bagger 288 was then moved to the Tagebau Garzweiler coal mine in 2001. It took 70 workers and 15 million German marks to move the mammoth machine just 14 miles. The Bagger 288 can mine 240,000 tons of coal per day. Each of …
Mining Industry Training
A comprehensive overview of planning and operational methods associated with dragline mining systems. The course focuses on system efficiencies and the importance of dragline engineering decision-making based on …