The computation manner which calculates the snow piezoresistance of slant face snow pressure and banquette width etc on the slope and configurates banquette width and the like

摘要

P To accurately calculate a small step width in the case of using a small step of a slope also for snowslide prevention and the like or a small step width formed of a snowslide prevention fence by setting a friction coefficient of a slant face, an inclination of the slant face and an area of a load sphere of a snow layer ON the slant face. PSOLUTION: The snow layer ON the slant face is always made to flow down and deformed by the geothermal melting of snow at the bottom of the snow layer and the consolidation settlement and the gravitating of the snow layer to generate slope snow pressure ON the small step and the like and whereby the snow layer accumulated ON the small step width is pushed out to be broken and fallen when the small step width is narrow. The small step width La is calculated which secures snow weight accumulated ON the small step width corresponding to the slope snow pressure P and resists by a snow pressure resistance force Pa to prevent the breakage and fall of the snow layer ON the small step. PCOPYRIGHT: (C)2011 and JPO& INPIT