COAL ENGINEERING ›› 2018, Vol. 50 ›› Issue (10): 101-105.doi: 10.11799/ce201810023

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Research on Overlying Strata Movement Law of Shallow-buried Deep Coal Seam

  

  • Received:2017-08-14 Revised:2017-09-25 Online:2018-10-20 Published:2018-12-18

Abstract: In order to understand overlying strata movement law of shallow-buried deep coal seam, the paper using field measurement to research the overlying strata movement law of Yang Wan Gou coal mine 6204 working face, the results show that: the height of water flowing fractured zone is 97m, 12.12 times of mining thickness, with a height of 22m collapse. 2.75 times of mining thickness; subsidence center of goaf subsidence is greater than the measuring points around the middle, sinking faster, express the symmetry in the overall form; starting at the surface of narrow face Yang Wan Gou distance of 78m coal mine was about 0.45 times the depth of the distance is too large; above the working face can not form a "vertical three zone", but only the formation of caving zone and fractured zone of the "two belts" structure.

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