Table 2 Mean Geotechnical properties of rocks from Jure rock avalanche (Bray 2016)

Unit weight

26.3 kN/m³

26.5 kN/m³

Uniaxial Compressive Strength

156 MPa

56 MPa

Tensile Strength

15 MPa

4 MPa

Friction angle (Peak)

47.4°

17.2°

Friction angle (Residual)

38.6°

17.1°

Apparent (Cohesion-peak)

3.2 MPa

4.7 MPa

Apparent (Cohesion-residual)

1.6 MPa

9.7 MPa

Young’s modulus

16–29 GPa

3–4 GPa

Poisson’s ratio

0.23

0.3