PROPOSAL OF THE METHOD ESTIMATING SEEPAGE ANALYSIS MODEL INCLUDING A BOUNDARY CONDITION USING MERGING PARTICLE FILTER
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- ITO Shin’ichi
- 鹿児島大学 学術研究院理工学域工学系
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- ODA Kazuhiro
- 大阪産業大学 工学部都市創造工学科
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- KOIZUMI Keigo
- 大阪大学 大学院工学研究科
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- NISHIMURA Miki
- 大阪大学 大学院工学研究科
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- DANJO Toru
- 国立研究開発法人防災科学技術研究所 水・土砂防災研究部門
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- SAKO Kazunari
- 鹿児島大学 学術研究院理工学域工学系
Bibliographic Information
- Other Title
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- 融合粒子フィルタを用いた境界条件を含む浸透解析モデルの推定手法の提案
Abstract
<p> The authors have tried to estimate the seepage analysis models based on field measurement data of volumetric water content using the merging particle filter which is one of the data assimilation methods. In the previous studies, one-dimensional seepage analysis models were assumed, and unsaturated seepage behaviors were simulated by setting the free drainage boundary condition at the bottom of the one-dimensional models. However, in the case of heavy rain, because of the observation rising groundwater level at a field slope, the simulation setting the free drainage boundary condition could not reproduce the field measurement data. In this study, the authors proposed a new method estimating the seepage analysis model including the boundary condition at the bottom of the one-dimensional model using merging particle filter, and the applicability of the proposed method was verified. As a result, the estimated seepage analysis model by data assimilation could reproduce the measurement data of not only numerical experiments but also field slope. Therefore, the availability of the proposed method simulating from the unsaturated condition to the saturated condition was verified.</p>
Journal
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- Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering)
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Journal of Japan Society of Civil Engineers, Ser. C (Geosphere Engineering) 76 (1), 52-66, 2020
Japan Society of Civil Engineers
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Details 詳細情報について
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- CRID
- 1390283659853116416
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- NII Article ID
- 130007800763
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- ISSN
- 21856516
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed