2019年台風19号と21号による洪水氾濫の連続災害発生状況の把握 ～福島県夏井川を例に～

Ueno, Mizuki; Nihei, Yasuo

doi:10.2208/jscejhe.76.2_i_643

JJSCE B1

2020

DOI: 10.2208/jscejhe.76.2_i_643

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2019年台風19号と21号による洪水氾濫の連続災害発生状況の把握～福島県夏井川を例に～

Mizuki Ueno¹,

Yasuo Nihei²

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Cited by 2 publications

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Inundation Analysis of the Dike Breach of the Chikuma River Taking Drainage Process and House Damage into Consideration

Takeda¹,

Sato²,

Kawaike³

et al. 2021

JDR

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Heavy rain and river flooding due to Typhoon No. 19 in October 2019 led to overflow and a dike breach on the left bank of the Chikuma River that caused large-scale inundation damage in Nagano City, Japan. To devise countermeasures, an inundation analysis model is an important tool. In this study, an inundation analysis model was developed to examine the inundation water behavior. The calculated inundation water depth and inundation area showed good agreement with the observed inundation water depth and the inundated area, confirming the validity of the analysis model. In addition, temporal changes of the inundation state were calculated considering the drainage process. However, the sewerage system, waterway, and drainage pump car were not taken into consideration in this analysis, and future issues for model improvement were also revealed. In addition, an analysis model with a 2 m grid was developed in the dike breach site, and the inundation water flow on roads and the fluid force around houses were obtained after taking into consideration the effect of houses. In paticular, the calculated value of the specific force exerted on damaged houses was very high. Moreover, it was proposed that house hazard should be evaluated while taking into consideration the loss of houses around the dike.

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Inundation Analysis of the Dike Breach of the Chikuma River Taking Drainage Process and House Damage into Consideration

Takeda¹,

Sato²,

Kawaike³

et al. 2021

JDR

View full text Add to dashboard Cite

show abstract

A Study of Awareness and Identification Issues in Disaster Prevention Among Young School Students in the Natsui River Watarshed

KAJITA,

KOBAYASHI,

KAWAGOE

2024

Japanese Journal of JSCE

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2019年台風19号と21号による洪水氾濫の連続災害発生状況の把握～福島県夏井川を例に～

Cited by 2 publications

References 3 publications

Inundation Analysis of the Dike Breach of the Chikuma River Taking Drainage Process and House Damage into Consideration

Inundation Analysis of the Dike Breach of the Chikuma River Taking Drainage Process and House Damage into Consideration

A Study of Awareness and Identification Issues in Disaster Prevention Among Young School Students in the Natsui River Watarshed

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2019年台風19号と21号による洪水氾濫の連続災害発生状況の把握 ～福島県夏井川を例に～

Cited by 2 publications

References 3 publications

Inundation Analysis of the Dike Breach of the Chikuma River Taking Drainage Process and House Damage into Consideration

Inundation Analysis of the Dike Breach of the Chikuma River Taking Drainage Process and House Damage into Consideration

A Study of Awareness and Identification Issues in Disaster Prevention Among Young School Students in the Natsui River Watarshed

Contact Info

Product

Resources

About

2019年台風19号と21号による洪水氾濫の連続災害発生状況の把握～福島県夏井川を例に～