2022 Fiscal Year Final Research Report
Analysis of the precipitation for the structure design and solution of water flow on the ground level in the urban area at the time of the heavy rain
| Project/Area Number |
20K04863
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 23030:Architectural planning and city planning-related
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| Research Institution | Fukui National College of Technology |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | 局地集中豪雨 / 確率降水量 / 日最大一時間降水量 / 透過型砂防堰堤 / 戦国時代 / 一乗谷 / 流出解析 / 氾濫解析 |
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| Outline of Final Research Achievements |
This research developed the calculation method of the probability precipitation in the urban area using observation data of daily maximum precipitation of 1 hour recorded in the plurality of weather stations. When daily maximum hourly precipitation was 100mm/h in Kobe City, the return period of 100mm precipitation was found to shorten from 285 years through 21 years using this calculation method. When daily maximum hourly precipitation was 100mm/h in Kobe city, the return period of 100mm precipitation was found to shorten from 285 years through 21 years using this calculation method.
In addition, the control function of the water flow passing Kamikido in Ichijodani of Fukui City, Fukui Prefecture was the same as permeable sand control dam. This control function was cleared by using the probable precipitation of Fukui City and river flooding analysis. In this way, Kamikido was found to be the oldest permeable sand control dam in japan.
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| Free Research Field |
都市計画，都市環境
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は福井県立一乗谷朝倉氏遺跡博物館の協力を得て，考古学と工学を融合できた．これによって，福井市一乗谷における上城戸は国内外最古の透過型砂防堰堤であることが明らかになった．本研究の成果の一部は福井県立一乗谷朝倉氏遺跡博物館で登録されている．今後，博物館による遺跡調査に河川氾濫の項目が新たに追加された．また，福井市役所は本研究の成果を用いて，福井市の足羽川流域における内水氾濫対策として活用する予定である．
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