Title: Determination of Reasonable Support Resistance of Thick and Hard Roof in Fully-mechanized Longwall Face
Abstract:According to the roof rock feature of the 1117(1) mining face in Guqiao Coal Mine and the observing result of mine ground pressure,the support resistance along meters and reasonable working resistance...According to the roof rock feature of the 1117(1) mining face in Guqiao Coal Mine and the observing result of mine ground pressure,the support resistance along meters and reasonable working resistance of the hydraulic supports are determined by actual observation,a regression formula and the mechanical model of the bond beam structure in basic theory of roof pressure.Through analyzing and comparing,the reasonable parameters of support working resistance are determined.The reference is provided for the reasonable determination of hydraulic support working resistance at the thick and hard roof in fully mechanized faces.Read More
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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