Abstract
Availability of new snow-melting system where the geothermal energy collected by building piles with circulating water was used for melting the snow on the ground was evaluated from the practical applications in parking lot & c. and its numerical simulation. For example, in the snow-melting area having present system, the depth of laying snow was kept less than 6cm through 5 seasons nevertheless the snow laid 66cm depth in maximum at the surrounding areas. Measured heat quantity collected by building piles agrees well with the result obtained from the numerical simulation. The results of numerical simulation based on the data of famous 56-heavy snow fall season obtained from Meteorological Observatory suggest that the present system is enough to melt the snow in such season. Moreover, the maximum thermal stress and displacement in the piles caused by the cooling due to circulating water used for snow-melting were evaluated by numerical calculation.
