Title: Research on Initial-mining Roof Blasting in Shallow Buried Coal-seam
Abstract:In Shendong shallow-buried mining area,hard roof weighting is very strong and roof extensive collapse can result in typhoon in initial mining phrase.This paper analyzed roof disaster reason of shallow...In Shendong shallow-buried mining area,hard roof weighting is very strong and roof extensive collapse can result in typhoon in initial mining phrase.This paper analyzed roof disaster reason of shallow buried coal-seam in initial mining phrase,and obtained whether the roof should be forced caved by constructing hanging roof mechanical model for shallow buried coal-seam.The method of determining rational roof caving height was put forward.Field practice showed that the roof control project by this method was feasible and application effect was good.Read More
Publication Year: 2014
Publication Date: 2014-01-01
Language: en
Type: article
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