Dry snow samples with density (ρ
d) of 0.079 to 0.302 g/cm
3 were immersed for 3 to 15 minutes in water kept at 0°C, and vane shear strength of them was measured by shear vane tester. The following results were obtained : 1) The vane shear strength of low density snow (ρ
d<0.2 g/cm
3) increased with the lapse time after immersion, but that of high density snow (ρ
d>0.2 g/cm
3) decreased with the lapse time after immersion. 2) The value of vane shear strength of fine grained snow immersed for 3 minutes was less than that before immersion. The value of vane shear strength of new snow immersed for 3 minutes was more than that before immersion. Moreover, the value of vane shear strength of new snow immersed for 15 minutes was 2 to 5 times larger than that before immersion. 3) The heights of cylindrical new snow samples (ρ
d=0.127 g/cm
3) immersed for 8 minutes and 12 minutes were about 60% and 55% of those before immersion, respectively.
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