QI Fuzhou, WU Yazhou. Supporting Technology and Process for Loose Coal Roadway with Broken Roof[J]. Safety in Coal Mines, 2015, 46(3): 65-67.
    Citation: QI Fuzhou, WU Yazhou. Supporting Technology and Process for Loose Coal Roadway with Broken Roof[J]. Safety in Coal Mines, 2015, 46(3): 65-67.

    Supporting Technology and Process for Loose Coal Roadway with Broken Roof

    • According to the actual situations of 5213 material roadway of a coal mine in Huaibei Mining Area, we analyzed the failure reasons of roadway in the loose and broken situation and the difficulties existed in support, proposed a supporting method called "metallic frame + reinforced anchor + high strength steel basketry", which combined active support with passive support. The interaction mechanism of the combined supporting was introduced. Field test results show that the application of combined supporting technology can not only change the situation of excavating combining with repairing in roadway, but and solve the problem of roof falling and serious deformation, which improves the efficiency of construction and achieves great economic benefit.
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