Study on four level partition model of gangue fluidized filling in the caving zone

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[1]	. Study on the distribution characteristics of deep hole blasting in the fan-shaped hole of Shilu Iron Mine [J]. Journal of Mining and Safety Engineering, 2023, 40(2): 371-378.
[2]	. Determining method of the driving time for the gob-side entry considering the effect of gangue compression [J]. Journal of Mining and Safety Engineering, 2020, 37(5): 928-935.

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