Journal of Snow Engineering of Japan
Online ISSN : 1882-4358
Print ISSN : 0913-3526
ISSN-L : 0913-3526
Volume 7, Issue 4
Displaying 1-2 of 2 articles from this issue
  • Moriaki Tamura, Tatsusirou Yoshimura, Shinnosuke Miyauchi
    1991 Volume 7 Issue 4 Pages 2-7
    Published: October 01, 1991
    Released on J-STAGE: May 29, 2009
    JOURNAL FREE ACCESS
    Five kinds of roofs were prepared and snow sliding characteristics for each roofs were observed from January 8th, 1986 to March 6th, 1986. The results obtained in this study were as follows:
    (1) On roofs without a heater, snow sliding occurred at the temperature above -2°C. The roof coated with the resin including high fulorine content was most effective for snow sliding, but the maximum snow weight accumulated on the roof reached 53kg/m2.
    (2) On roofs with a heater, it was found that snow sliding occurred in small blocks.
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  • Tetsuro NAKATAO
    1991 Volume 7 Issue 4 Pages 8-16
    Published: October 01, 1991
    Released on J-STAGE: May 29, 2009
    JOURNAL FREE ACCESS
    The present paper aims to describe the different types of landslide in relation to snowmelt water by a simple model depending on the behaviour of underground water and different apparent features of ground surface and plants. (1) Firstly two extreme types : liquid and solid ones, are proposed. In practice, mediate type appears and its mediateness is introduced. (2) Secondly a new classification of landslide is obtained by using of the segment length (after the slide) and water contents (before the slide) of the original ground. (3) Generation mechanism of slide should explane the mechanical balance and clay layer at the slide plane. A new model is proposed such that the clay layer may be grown by successive large snowmelt water among long years.
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