ESTIMATION OF UNASSUMED TSUNAMI DAMAGE OF SEWER SYSTEM IN WAJIMA CITY BY INTEGRATED OVERGROUND-UNDERGROUND INUNDATION SIMULATION MODEL
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- YASUDA Tomohiro
- 関西大学 環境都市工学部
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- YAMANAKA Akihiko
- パシフィックコンサルタンツ(株)
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- IKEMOTO Ryoko
- 金沢大学 理工研究域環境デザイン学系
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- MIYAJIMA Masakatsu
- 金沢大学 理工研究域環境デザイン学系
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- MORISAKI Hiroshi
- パシフィックコンサルタンツ(株)
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- TAKANO Morihiro
- 石川工業高等専門学校 環境都市工学科
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- OTANI Taku
- 関西大学大学院 理工学研究科
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- OKABE Ryoji
- 元関西大学大学院 理工学研究科
Bibliographic Information
- Other Title
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- 地上・地下統合浸水解析モデルを用いた輪島市下水道施設の津波による未想定被害の検討
Abstract
The 2011 off the Pacific coast of Tohoku Earthquake Tsunami devastated not only houses but also sewer systems. It is important to discuss the risk of tsunami damage to sewer systems and to make business continuity plan (BCP) in advance. The purpose of this study is to discuss insufficiency of the BCP and possibility of unassumed tsunami damage in Wajima City. Wajima is facing to the Sea of Japan and assumed possible maximum tsunami inundation by the north offshore Noto earthquake model. The overground modelling uses elevation and road information data, and the underground modelling uses sewer system data, such as size and location of manholes, and length, depth, and gradient of pipes. The integrated overground-underground inundation model simulates the tsunami floods not only on the ground but also into the sewer. The detail analysis indicates not a few pipes were filled by tsunami inundation and water level in manhole became high. High water level of manhole compresses the air and increases the possibility of manhole cover detachment.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE))
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Journal of Japan Society of Civil Engineers, Ser. A1 (Structural Engineering & Earthquake Engineering (SE/EE)) 74 (4), I_724-I_730, 2018
Japan Society of Civil Engineers
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Details
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- CRID
- 1390282763062798336
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- NII Article ID
- 120007184033
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- ISSN
- 21854653
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed