HAZARAD ANALYSIS OF SMALL UNDERGROUND SPACE IN URBAN FLOOD AND STUDY OF COUNTERMEASURES
城市洪水中小型地下空间危害分析及对策研究
基本信息
- 批准号:18510146
- 负责人:
- 金额:$ 2.36万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2006
- 资助国家:日本
- 起止时间:2006 至 2007
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The main results obtained through this research are as follows.A three dimensional numerical simulation model is developed for inundation analysis in a small underground space. VOF method is used in the model. The model is verified, comparing several computation results with the experimental data of a full-scale stairs model and of a 1/15-crate basement model comprising two stairs, corridor and five rooms. It is found that the model can well simulate the inundation flow behavior in the basement. We conclude that the model can be applicable to evacuation analysis in a small underground space.Evacuation from underground space has been investigated by using two real size models of staircase and door. From the experiment of staircase, we find that the water depth of 0.3m on the ground level is the limit of safe and easy evacuation and that clothes are also related with evacuation. In addition, specific tire per unit width is introduced as a new criterion to evaluate safety evacuation in both corridor and staircase. It is difficult to implement safety evacuation when the specific faro per unit width is over 0.125m^2. From the experiment of door we find that the water depth in between 0.3m and 0.4m in front of the door is the limit to open it without difficulties. Also, we have to keep in mind that evacuation by children or elderly people is more difficult than that by adults.Through the simulation results by the integrated urban flood model with 2-D underground inundation model, we find that setting of step at each entrance is one of the effective measures to reduce the risk at underground inundation, especially for heavy rainfall for a short time.
主要研究成果如下:建立了一个小型地下空间淹没分析的三维数值模拟模型。模型中使用了VOF方法。将计算结果与实尺楼梯模型和1/15板条箱地下室模型的实验数据进行了比较,验证了模型的正确性。结果表明,该模型能较好地模拟地下室淹没水流运动规律。该模型适用于较小地下空间的疏散分析。采用楼梯和门两种实际尺寸的模型对地下空间的疏散进行了研究。从楼梯实验中发现,地面水深0.3m是安全疏散的极限,服装也与疏散有关。此外,还引入了单位宽度轮胎比作为评价走廊和楼梯安全疏散的新标准。当单位宽度比法罗大于0.125m^2时,很难实现安全疏散。从门的实验中发现,门前0.3m~0.4m之间的水深是顺利打开门的极限。通过将城市洪水模型与二维地下淹没模型相结合的模拟结果,我们发现在每个入口设置台阶是降低地下淹没风险的有效措施之一,特别是在短时间内的暴雨。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
An EMG Study of Walking in Flood Water for Evacuation from Urban Underground
城市地下疏散洪水中行走的肌电图研究
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Kotani;K.;Hirato;Y.;Ishigaki;T.;Shimada;H.;Toda;K. and Horii;K.
- 通讯作者:K.
地下空間浸水を考慮した都市型洪水氾濫計算モデル「構造格子モデルと街路ネットワークモデル」の検証
考虑地下空间淹没的城市洪水淹没计算模型“结构网格模型和街网模型”验证
- DOI:
- 发表时间:2008
- 期刊:
- 影响因子:0
- 作者:武永亮太;榊原弘之;村上ひとみ;村上 ひとみ;平藤祐司・小谷賢太郎・石垣泰輔・戸田圭一;屋敷朋宏・益戸宏・石垣泰輔・島田広昭
- 通讯作者:屋敷朋宏・益戸宏・石垣泰輔・島田広昭
地下空間浸水時の避難困難度と利用者の水防意識について
关于地下空间洪水时疏散困难及用户防洪意识
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Yuji;HIRATO;Kentaro;KOTANI;Taisuke;ISHIGAIU;Keiichi;TODA;戸田圭一・山本大介・米山望・間畠真嗣;大西良純・石垣泰輔・馬場康之・戸田圭一
- 通讯作者:大西良純・石垣泰輔・馬場康之・戸田圭一
Difficulty of Evacuation during Underground Flood
地下洪水时疏散困难
- DOI:
- 发表时间:2007
- 期刊:
- 影响因子:0
- 作者:Taisuke;ISHIGAHI;Yasuyuki;BABA;Keiichi;TODA;Hiroaki;SHIMADA
- 通讯作者:SHIMADA
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TODA Keiichi其他文献
TODA Keiichi的其他文献
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{{ truncateString('TODA Keiichi', 18)}}的其他基金
Flood risk and its measures at highly multi-layered large city under extreme weather
极端天气下高层次大城市洪水风险及对策
- 批准号:
15H02979 - 财政年份:2015
- 资助金额:
$ 2.36万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study of flood vulnerability of motorized society and its countermeasures
机动化社会洪水脆弱性及对策研究
- 批准号:
23310109 - 财政年份:2011
- 资助金额:
$ 2.36万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study on various flood countermeasures for human safety and urban function management
人类安全和城市功能管理的各种洪水对策研究
- 批准号:
20310096 - 财政年份:2008
- 资助金额:
$ 2.36万 - 项目类别:
Grant-in-Aid for Scientific Research (B)
Study on disaster by water in urban rivers and urban spaces
城市河流和城市空间水灾害研究
- 批准号:
16510113 - 财政年份:2004
- 资助金额:
$ 2.36万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
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