Shape of the Snow Bank Formed under Eaves by the Fall of Snow on Roofs

Abstract

Shape of the snow bank under eaves which was formed on the ground by the fall of snow on roofs was observed by making the cross section of the snow bank in the winter of 1974 to 1975 at Shinjo area.From eight observations of the snow bank, it was found that the width of the piled snow l1 was expressed by the following equation, assuming that the horizontal component of the length of the eaves was equal to 0.5 m;l1=-0.3h0-0.35+√ (0.3h0+0.35) 2-1.12 {(0.5-0.7l3) h0-0.15} /0.56 (m) where h0 (m) was the depth of natural snow cover on the ground and l3 (m) was the horizontal component of the length of a roof, namely a length from a ridge to eaves. The above equation deduced semi-empirically is applicable in the accuracy of ± 20%.

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