Table 2 Experimental settings.

From: The normal impact stiffness of a debris-flow flexible barrier

Status of material

Total mass (kg)

Bulk density (kg/m3)

Maximum diameter Dmax (mm)

Mean diameter D50(mm)

Solid volume fraction

Moving distance (m)

Test NO

Coarse

100

1680

50

13

0.5

5.0

CL

3.2

CS

Fine

1810

50

3.5

0.5

3.2

FS

5.0

FL