Zhimin Zhang, Tianhe Kang*
CMC-Computers, Materials & Continua, Vol.66, No.1, pp. 341-357, 2021, DOI:10.32604/cmc.2020.012104
Abstract In view of the three-dimensional dynamic abutment pressure, the influence of the far-field hard stratum (FHS) in deep, thick coal seams is indeterminant. Based on elastic foundation theory, a three-dimensional dynamic
prediction model of the abutment pressure was established. Using this model,
the dynamic change in the coal seam abutment pressure caused by the movement
of the FHS was studied, and a method for determining the dynamic change
range of the abutment pressure was developed. The results of the new prediction
model of the abutment pressure are slightly higher than the measured values,
with an error of 0.51%, which avoids… More >
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