Longwall Top Coal Caving Mining

Longwall Top Coal Caving Mechanisms in the

Associate Professor, Coal Industry Engineering Research Center of Top Coal Caving Mining, China Univ. of Mining and Technology, D11 Xueyuan Rd., Haidian

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Effect of Key Parameters on Top Coal First

The first caving of top coal and the first weighting of roof strata in Longwall Top Coal Caving (LTCC) mining were analyzed in a parametric study by using a discontinuum modeling technique with plastic rock material. The analysis demonstrated that an increase in the value of cover depth decreases the stability of main roof strata, while the impact of horizontal stress on the main roof strata

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Effect of Key Parameters on Top Coal First

The first caving of top coal and the first weighting of roof strata in Longwall Top Coal Caving (LTCC) mining were analyzed in a parametric study by using a discontinuum modeling technique with plastic rock material. The analysis demonstrated that an increase in the value of cover depth decreases the stability of main roof strata, while the impact of horizontal stress on the main roof strata

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Geotechnical Considerations for Longwall Top Coal Caving

Longwall Top Coal Caving (LTCC) is an enhanced form of the conventional longwall recovery system, whereby a rear Armoured Face Conveyor (AFC) (refer to Figure 3) is utilised to extract coal from behind the powered supports that would otherwise be left unrecovered in thick seam environments. The major benefit of LTCC is the ability to safely optimise resource recovery in thi ck seam deposits

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Mining Safety of Longwall Top-coal Caving in

Mining Safety of Longwall Top-coal Caving in China - CORE

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Thick Seam Mining Methods - Longwall Top

Thick Seam Mining Methods - Longwall Top Coal Caving Contact us. For more information, contact Dr Chengguo Zhang. E: [email protected] Australia has very large thick seam coal resources. As a result, there has been ongoing research conducted by the School and others into suitable mining methods that are capable of safe, efficient and productive resource recovery. This research

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TOP CAVING – Mining Science and Technology

Longwall Topcoal Caving (TCC) is a method of extraction for underground mining of thick seams. It uses a longwall set-up and natural forces to aid in the winning of coal. With this method of extraction only a single longwall is developed at the foot of the seam. The control of the roof layers at the face is by means of powered supports. At the face, the coal is mined with a Shearer at a set

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LONGWALL TOP COAL CAVING (LTCC) Mining

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Longwall Top Coal Caving at the

14.05.2019· The adjacent open-cut mine has been mining the full seam section for more than 30 years, investigations and evaluations were made into the Top Coal Caving method and its suitability for the operation. Longwall Top Coal Caving (LTCC) was introduced in 2012. The presentation will discuss the management of an LTCC face compared to a conventional longwall face and what was learned from

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Geotechnical Considerations for Longwall Top Coal Caving

Longwall Top Coal Caving (LTCC) is an enhanced form of the conventional longwall recovery system, whereby a rear Armoured Face Conveyor (AFC) (refer to Figure 3) is utilised to extract coal from behind the powered supports that would otherwise be left unrecovered in thick seam environments. The major benefit of LTCC is the ability to safely optimise resource recovery in thi ck seam deposits

Get Price