Table 1 Coal seam parameters.

From: Research on the optimization of optimal blasting parameters and fragmentation control based on coal seam geological conditions

ρ (Kg/m3)

Elastic modulus (gpa)

Poisson’s ratio

Uniaxial compressive strength (mpa)

Tensile strength (mpa)

1260

5.3

0.369

5.177

0.826

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