Guo Gao-chuan
Abstract
This paper uses the laboratory physical resembles to simulate the top coal caving property of the hard coal seam,puts forward the top coal caving property characteristics of hard coal,and the circumstance of the pressure distributes in front of the working face.
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This paper uses the laboratory physical resembles to simulate the top coal caving property of the hard coal seam,puts forward the top coal caving property characteristics of hard coal,and the circumstance of the pressure distributes in front of the working face.
Key concepts: Coal, Property (philosophy), Mining engineering, Hard coal, Coal mining, Petroleum engineering, Geology, Engineering