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Table 1 Physico-mechanics parameters of specimens

From: Damage evolution of bi-body model composed of weakly cemented soft rock and coal considering different interface effect

Medium

Elastic modulus (GPa)

Poisson’s ratio

Cohesion (MPa)

Friction angle (°)

Tensile strength (MPa)

Soft rock

2.1

0.252

3.5

44

0.3

Coal

1.5

0.272

2.5

40

0.5

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