Practices on Reconstruction of Oblique Coal Mining in Large Fault
Abstract：In order to reduce the coal lost and improve the coal recovery rate of the coal mining face,according to the F3 large fault with a drop of 6.4～15.9 m affected to the actual area of the coal mining face,the coal mining face was reconstructed.According to the upperwall and footwall of the fault,the coal mining face was reconstructed in to two small coal mining faces,such as an upper level face and a foot level face.In the layout of the gateway,the linkage and connection of the two mining faces should be considered in order to remove,transport and connect the powered supports and other equipments.With the rational cross section and support mode of the gateways conducted,the safety could be ensured during the gateway reconstruction and the effective condition could be provided for the successful mining operation.Therefore the roof falling or over higher pressure risks occurred during the coal mining face directly passed the fault could be eliminated.
Keywords：large faultobliquereconstructionsupportremovingconnection
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)