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Study on Supporting Technology to Overlarge Section Open-off Cut in the Carboniferous Fractured Coal Seam
Author(s): 
Pages: 38-40
Year: Issue:  Z1
Journal: Xishan Science & Technology

Keyword:  Fractured coal seamBig sectionSupporting technologyDiscussion;
Abstract: According to the present status in Tashan coal mine of Datong coal mine group company that uses fully mechanized top-coal caving mining in extremely thick coal seam,in connection with the practice such as fracture growth of C3# coal seam,soft broken of coal body,easily occurs roof caving accident of side Cutting in the big section,depending on the related supporting theory of laneway in the coal mine,puts forward the roof supporting technology to suit side cutting construction in big section of the mine.
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