Study on Disaster caused by Heavy rainfall in Tokai Region, Japan at September 2001

2001年9月日本东海地区强降雨灾害研究

• 批准号: 12800012
• 负责人: TSUJIMOTO Tetsuro
• 金额: --
• 依托单位: NAGOYA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Special Purpose.
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12800012/
• 关键词: Disaster caused by Heavy Rainfall; Disaster in Urban Area; Designed Heavy Storm; Levee Breach; River Disasters; Waste caused by Disaster; Woody Debris; Information Transfer

The main purpose of the present study is to describe the disaster occured in Tokai region due to heavy rainfall at September 11 and 12, 2001. The results have been summarized as below :・ The mechanism of the heavy rainfall has been clarified from meteorological point of view.・ The hydrological statistics has been analyzed in order to compare the magnitude of the designed rainfall and that of the observed one.・ Flooding and inundation in urban areas have been described using both hydrodynamic model and field survey for marks of inundation, which has made it possible to discuss the problems in the disaster.・ It is confirmed that the complex system for flood protection that consists of a main river, tributaries and drainage of inner basin causes many problems among all people living in the basin.・ The mechanism of the levee breach at Shin-kawa has been clarified with the analysis based on soil mechanics.・ The functional disorder in underground spaces during the disaster has been investiga … More ted. The method to prevent it has also been discussed.・ The functional disorder of transportation system during the disaster has been summarized. The use of I.T.for preventing it has been proposed.・ The transfer of disaster information among people and evacuation activities has been checked through the number of hearing survey to the people living in the basin. The proper crisis management has also been discussed.・ The actual conditions of the refuge site, the reconstruction and the waste produced by the disaster have been investigated.・ The actual condition of the levee breach occurred in several small rivers in Aich prefecture and consequent flooding have been summarized.・ The production of sediment and woody debris in upper reach of the Yahagi river and resulting disaster along the channel have been investigated.・ The response of the people to the suddenly increased destructive discharge that occurred downstream of the Yahagi dam due to the gate opening has been investigated to discuss the proper crisis management.・ The aforementioned disasters have been classified based on both the regional characteristics and the problem of the disaster. The lesson we got through the disaster has been summarized finally. Less

本研究的主要目的是描述2001年9月11日至12日东海地区因强降雨而发生的灾害。结果总结如下： ・从气象角度阐明了强降雨的机制。・ 对水文统计数据进行了分析，以便比较设计降雨量和实测降雨量。 ・ 利用水动力模型和现场调查标记来描述城市地区的洪水和淹没。・ 已证实，由干流、支流和内流域排水系统组成的复杂的防洪系统给流域内所有居民带来了许多问题。・通过基于土力学的分析，明确了新川堤坝溃决的机理。 ・对灾害期间地下空间的功能紊乱进行了调查……还讨论了预防方法。交通运输系统功能紊乱总结了如何利用信息技术来预防灾害。 ・通过对流域内居民的听证调查来确认灾害信息的传递和避难活动。・ 调查了避难所的实际情况、灾后重建及灾害产生的废弃物。 ・ 总结了爱知县多条小河流发生堤坝决口并引发洪水的实际情况。生产调查了矢作川上游泥沙和木屑的堆积以及由此造成的河道沿岸灾害。 ・调查了由于闸门打开而导致矢作水坝下游突然增加的破坏性排放，人们的反应讨论适当的危机管理。 ・ 上述灾害根据区域特征和灾害问题进行了分类。 最后总结了我们从灾害中得到的教训。