Research on strata behavior and roof activity characteristics of comprehensive working face with shallow and low mining height
The overview of 33401 comprehensive mechanized mining face in Bulianta Coal Mine is introduced,a detailed analysis of the first time pressure,cycle pressure,and final mining periods of the 33401 comprehensive mechanized mining face is provided,the problems encountered during the mining process of the 33401 comprehensive mechanized mining face and specific solutions are deeply elaborated which has reference significance for similar mining faces.
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