落石防護兼雪崩予防施設

Rock fall-cum-avalanche prevention facility

Abstract

【目的】鋼管杭基礎の柵構造を利用して斜面中腹に設置可能な落石防護兼雪崩予防施設を提供する。 【構成】雪崩予防が必要な斜面に鋼管杭基礎の柵構造体10が設置され,柵構造体10の設置位置よりも上方の斜面にアンカー40がほぼ鉛直に定着され,このアンカー40の先端部に連結されたロープ31,32が斜面からほぼ水平方向に引出され,ロープ31,32は斜面から引出された高さ位置とほぼ同じ高さ位置において,柵構造体10の支柱の高さの中間付近に連結されている。 【選択図】図3
PROBLEM TO BE SOLVED: To provide a rock fall-cum-avalanche prevention facility which can be set in an intermediate area of a slope by using a fence structure of a steel pipe pile foundation. SOLUTION: The fence structure 10 of the steel pipe pile foundation is set on the slope where avalanche prevention is required, and an anchor 40 is almost vertically fixed to the slope at a location above a set location of the fence structure 10. Then ropes 31, 32 connected to tips of the anchor 40 are almost horizontally drawn from the slope to be extended toward the fence structure 10 at a height that is almost the same as a height at which they are drawn from the slope, and connected to a location around a midpoint of an intermediate location of the height of a support of the fence structure 10. COPYRIGHT: (C)2009,JPO&INPIT

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