Destress Blasting of Rock Mass: Multiscale Modelling and Simulation

Table 2

Material properties for JH-2 material for dolomite.

Constant

Value

Unit

Density, ρ_{r}

2840.0

kg/m^{3}

Young’s modulus, E

77320

MPa

Bulk modulus, K_{1}

50287

MPa

Shear modulus, G

31084

MPa

Poisson’s ratio, ν

0.24

—

Hugoniot elastic limit, HEL

2500

MPa

HEL pressure, P_{HEL}

1440

MPa

Maximum tensile strength, T

30.23

MPa

Intact strength coefficient, A

0.73

—

Fractured strength coefficient, B

0.56

—

Strain rate coefficient, C

0.026

—

Intact strength exponent, N

0.57

—

Fractured strength exponent, M

0.57

—

Bulk factor, β

1

—

Damage coefficient, D_{1}

0.001

—

Damage coefficient, D_{2}

1.17

—

Pressure coefficient 2, K_{2}

−78000

MPa

Pressure coefficient 3, K_{3}

9400000

MPa

Maximum normalized fracture strength,

0

—

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