Shengli Zhao
Abstract
According to long-term observation data of Majiagou Colliery in Tangshan,this paper concluded surface subsidence rules of mining steeply inclined coal seam and obtained subarea subsidence characteristic of surface subsidence in space under steeply inclined coal seam mining condition.
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According to long-term observation data of Majiagou Colliery in Tangshan,this paper concluded surface subsidence rules of mining steeply inclined coal seam and obtained subarea subsidence characteristic of surface subsidence in space under steeply inclined coal seam mining condition.
Key concepts: Coal mining, Subsidence, Mining engineering, Geology, Groundwater-related subsidence, Coal, Problems in coal mining, Paleontology