CONTROL TECHNOLOGY FOR COAL ROADWAY WITH MUDSTONE INTERLAYER IN NUI BEO COAL MINE
نویسندگان
چکیده
منابع مشابه
Canaries in the coal mine.
Up until 30 years ago, coalminers relied on canaries as warning systems against harmful gases and pollutants underground. The miners listened for birdsong and if the birds fell silent, then they knew there was danger to their health and to take action. Today we have much more sophisticated information and reporting on the quality of air. We know precisely the levels and composition of pollutant...
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The problem of roadway support in swelling soft rock was one of the challenging problems during mining. For most geological conditions, combinations of two or more supporting approaches could meet the requirements of most roadways; however, in extremely swelling soft rock, combined approaches even could not control large deformations. The purpose of this work was to probe the roadway deformatio...
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ژورنال
عنوان ژورنال: International Journal of GEOMATE
سال: 2019
ISSN: 2186-2982,2186-2990
DOI: 10.21660/2019.60.39560