| 摘要 |
PROBLEM TO BE SOLVED: To provide an excavation with timbering snow storage dam having a new type of snow storage for fulfilling geographical conditions adapted to the present use required for great capacity of nultipupose use with the development of the use of snow and a storage capacity commodity cost. SOLUTION: As the use of natural energy, an accumulation of snow can be made by a snow dam method constituted of an enclosure of sheet piles capable of being constructed in an optional site at a low cost.
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