Zhong Bing Dong
Abstract
Point at the character of hard and super high coal seam of Jingyuan coal mine bureau No.1 coal mine.This paper introduces manufacture and application effect of ZZF5200/19/32S type low_order sublevel caving hydraulic suppor to fit this seam fully_mechainized sublevel caving mining.
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Point at the character of hard and super high coal seam of Jingyuan coal mine bureau No.1 coal mine.This paper introduces manufacture and application effect of ZZF5200/19/32S type low_order sublevel caving hydraulic suppor to fit this seam fully_mechainized sublevel caving mining.
Key concepts: Mining engineering, Coal mining, Coal, Engineering, Point (geometry), Hard coal, Geology, Geotechnical engineering