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A platform for research: civil engineering, architecture and urbanism
HAZARD EVALUATION METHOD OF SLOPE DISASTER IN SNOW MELTING AND HAZARD EVALUATION SYSTEM OF SLOPE DISASTER IN SNOW MELTING
To provide a hazard evaluation method of slope disaster in snow melting which can appropriately evaluate hazard of slope disaster in consideration of influences of meltwater and a snow depth.SOLUTION: A hazard evaluation method of slope disaster in snow melting includes converting the total of a precipitation amount and a snowmelt amount into an effective rainfall amount and calculating an effective snowmelt amount at the time of evaluation, setting a threshold of the effective snowmelt amount corresponding to a snow depth in an evaluation region from a combination of a snow depth experienced in the past in the evaluation region and an experience value of the effective snowmelt amount, compares the effective snowmelt amount at the time of evaluation to the threshold of the effective snowmelt amount corresponding to the snow depth at the time of evaluation, and evaluates a hazard of slope disaster.SELECTED DRAWING: Figure 2
【課題】融雪水と積雪深の影響を考慮して斜面災害の危険度を適切に評価することができる融雪期斜面災害の危険度評価方法を提供する。【解決手段】降水量および融雪量の合計を実効雨量指数に換算して評価時点の実効融雪量を算出し、評価地域で過去に経験した積雪深および実効融雪量の経験値の組み合わせから、評価地域における積雪深に対応する実効融雪量の閾値を設定し、評価時点の実効融雪量と、評価時点の積雪深に対応する実効融雪量の前記閾値とを比較して、斜面災害の危険度を評価する。【選択図】図２
HAZARD EVALUATION METHOD OF SLOPE DISASTER IN SNOW MELTING AND HAZARD EVALUATION SYSTEM OF SLOPE DISASTER IN SNOW MELTING
To provide a hazard evaluation method of slope disaster in snow melting which can appropriately evaluate hazard of slope disaster in consideration of influences of meltwater and a snow depth.SOLUTION: A hazard evaluation method of slope disaster in snow melting includes converting the total of a precipitation amount and a snowmelt amount into an effective rainfall amount and calculating an effective snowmelt amount at the time of evaluation, setting a threshold of the effective snowmelt amount corresponding to a snow depth in an evaluation region from a combination of a snow depth experienced in the past in the evaluation region and an experience value of the effective snowmelt amount, compares the effective snowmelt amount at the time of evaluation to the threshold of the effective snowmelt amount corresponding to the snow depth at the time of evaluation, and evaluates a hazard of slope disaster.SELECTED DRAWING: Figure 2
【課題】融雪水と積雪深の影響を考慮して斜面災害の危険度を適切に評価することができる融雪期斜面災害の危険度評価方法を提供する。【解決手段】降水量および融雪量の合計を実効雨量指数に換算して評価時点の実効融雪量を算出し、評価地域で過去に経験した積雪深および実効融雪量の経験値の組み合わせから、評価地域における積雪深に対応する実効融雪量の閾値を設定し、評価時点の実効融雪量と、評価時点の積雪深に対応する実効融雪量の前記閾値とを比較して、斜面災害の危険度を評価する。【選択図】図２
HAZARD EVALUATION METHOD OF SLOPE DISASTER IN SNOW MELTING AND HAZARD EVALUATION SYSTEM OF SLOPE DISASTER IN SNOW MELTING
融雪期斜面災害の危険度評価方法および融雪期斜面災害の危険度評価システム
TAKAYANAGI TAKESHI (author) / SHINDO YOSHIMASA (author) / SATO RYOTA (author) / NUNOKAWA OSAMU (author)
2020-06-18
Patent
Electronic Resource
Japanese
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