ANALYSIS OF DAMAGE CASE CONCERNING STEEL PIPE OPEN SABO DAM USING DEM
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- SHIMAKAWA Osamu
- 防衛大学校 研究科
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- HORIGUCHI Toshiyuki
- 防衛大学校 建設環境工学科
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- BEPPU Masuhiro
- 防衛大学校 建設環境工学科
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- KATSUKI Satoshi
- 防衛大学校
Bibliographic Information
- Other Title
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- 個別要素法を用いた透過型砂防堰堤の損傷事例解析
Abstract
<p>Recently investigation reports of collapse incident concerning steel pipe open sabo dam have been reported due to large-scale debris flow. These were disaster incident caused by the impact of debris flow that exceeds the design load. It is required to estimate the design load of structures that can withstand large scale debris flow, in order to study the limit states and failure mechanism of steel pipe open sabo dam. The study validated the failure mechanism to analyze the reproduction of the damage case in distinct element method. Then, the constitutive law of the steel pipe is determined by the section division method. In addition, analysis is conducted using the modified flow velocity distribution model that applied the infiltration flowrate between the sediment gravel. This result show that the top of a steel pipe open sabo dam is affected by the steel pipe connections and especially the compressed deformation steel pipes are the main cause.</p>
Journal
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- Japanese Journal of JSCE
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Japanese Journal of JSCE 79 (15), n/a-, 2023
Japan Society of Civil Engineers
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Keywords
Details 詳細情報について
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- CRID
- 1390013884655541632
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- ISSN
- 24366021
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed