A Study Of Factor Analysis Relating To Avalanches And Landslides At Heavy Snowfall Regions In Both Tohoku And Hokuriku Districts, Japan

日本东北地区和北陆地区大雪地区雪崩和山体滑坡的相关因素分析研究

• 批准号: 02559013
• 负责人: ITO Takeshi
• 金额: $ 5.76万
• 依托单位: Akita National College Of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1990
• 资助国家: 日本
• 起止时间: 1990 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02559013/
• 关键词: Avalanche; Landslide; Mechanism of Snow Melting; Hazard Appraisal; Numerical Simulation; Tellemetalling; Snow Pack Pressure; Regionality; 地すべり; 雪質調査; 自動観測; 多変量解析; シミュレ-ション; 豪雪地帯; 資料解析

The main purpose of our present research project for a period of three years from 1990 to 1992 is to study the relationship between avalanche and landslide associated with heavy snowfall, and to develop theories of occurrences of avalanche and landslide for reducing snow disasters. Another purpose of this research is to establish a real time snow weather measurement system.Factors affecting avalanche and landslide have been investigated in view of future hazard appraisals. These avalanche and landslide data were collected mainly from Tohoku district to compare with each risk point which was proposed by local governments using ordinary method.The results obtained in the research project are summarized as follows.(1)Eight influence factors including topographic and snow conditions were selected from each avalanche and landslide. Then the multiple regression analysis was applied to decide the degree of risk of each point, thus the hazard maps were made and the regionality were revealed for both Akita and Miyagi prefectures for future activity.(2)Recent landslide tends to take place at the vicinity of avalanche point, and most of landslides in both Tohoku and Hokuriku districts were shown to be caused by snow melting(3)A numerical method has also been made to clarify the mechanism of landslide occuring in the snowy seasons.(4)Avalanche motion was simulated by a numerical method, and which conducted reasonable results.(5)Tellemetalling system for snow weather measurement was established, and this system is going to be adopted by Yokote city as a prevent snow disaster system from next year.

从1990年到1992年，我们本研究项目的主要目的是研究雪崩和与大雪相关的滑坡之间的关系，并发展雪崩和陆地坡道的理论，以减少雪灾。这项研究的另一个目的是建立一个实时的雪天气测量系统。鉴于未来的危害评估，已经研究了影响雪崩和滑坡的因素。这些雪崩和滑坡数据主要是从Tohoku地区收集的，以与地方政府使用普通方法提出的每个风险点进行比较。研究项目中获得的结果总结如下。（1）八个影响因素，包括从每个雪人和滑坡中选择了地形和积雪条件。 Then the multiple regression analysis was applied to decide the degree of risk of each point, thus the hazard maps were made and the regionality were revealed for both Akita and Miyagi prefectures for future activity.(2)Recent landslide tends to take place at the vicinity of avalanche point, and most of landslides in both Tohoku and Hokuriku districts were shown to be caused by snow melting(3)A numerical method has也是为了澄清雪季中发生的滑坡机制。（4）通过数值方法模拟了雪崩运动，并取得了合理的结果。（5）建立了雪天气测量的Tellemetallestalling系统，并且该系统将被Yokote City采用，以预防雪灾系统作为预防雪灾系统。

项目成果

伊藤 驍(分担執筆): "資料解析に基づく防災ポテンシャルの変遷に関する研究" (株)一喜産業, 523 (1991)

伊藤胜（撰稿人）：《基于数据分析的防灾潜力变化研究》一骑产业株式会社，523（1991）

伊藤 驍、長谷川 武司: "赤外線降雪検知器による降雪測定" 第7回日本雪工学会大会論文報告集. 5-6 (1990)

伊藤武 (Takeshi Ito)、长谷川武 (Takeshi Hasekawa)：“使用红外降雪探测器进行降雪测量”第七届日本雪工程学会会议记录 5-6 (1990)。

塚原 初男、他2名: "豪雪地のスギ林における斜面雪圧の推定と軽減(II)" 山形大学紀要(農学). 11. 285-290 (1991)

Hatsuo Tsukahara等2人：“大雪地区雪松林斜坡雪压的估算和减少（II）”山形大学通报（农业）11. 285-290（1991）。

Takeshi ITO: "Investigations On Snow Disasters And Development Of A Disaster Potential Index" Proceeding Of 2nd Int'l Conference On Snow Engineering. (1993)

伊藤武：“雪灾调查和灾害潜在指数的制定”第二届雪工程国际会议论文集。

伊藤 驍: "雪の環境情報とその応用" 秋田大学教育学部情報科学課程研究紀要. 1. 13-33 (1992)

伊藤武：“雪环境信息及其应用”秋田大学教育学部信息学课程研究通报。1. 13-33 (1992)。