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Table 1 Parameters of soil samples in the source area of the Midori-ga-oka gully

From: Preliminary investigation of the 20 August 2014 debris flows triggered by a severe rainstorm in Hiroshima City, Japan

Sample No.

1

2

3

Specific gravity, G S

2.640

2.643

2.638

Dry density, ρ d (kg/m3)

1,370

1,390

1,189

Water content, w (%)

15.2

19.5

31.5

Liquid limit, LL (%)

32.1

Plastic limit, PL (%)

23.4

Plasticity Index, PI (%)

8.7