研究者詳細 - 赤穗　良輔

論文 - 赤穗　良輔

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南海トラフ地震と洪水の複合災害時の児島湾へ流入する河川の津波遡上特性査読

土木学会論文集特集号（水工学） 2024年

SPATIALLY EXPLICIT MACHINE LEARNING MODEL FOR FLOOD INUNDATION AUGMENTED WITH HYDRODYNAMIC MODELING 査読

Journal of JSCE Special issue (Hydraulic Engineering) 2024年

流域治水に向けた田んぼダムの効率的解法の提案と現地適用査読

赤穗良輔, 宅野智紀, 松井大生, 前野詩朗

土木学会論文集B1(水工学) 79 2023年11月

Evaluation of behavior of floating litter during flooding with levee breach by using inundation analysis 査読

Weijian Hua, Ryosuke Akoh, Kexin Liu, Shiro Maeno

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 79 2023年11月

本川の超過洪水に伴う支川背水の影響に関する調査～高梁川支川新本川を対象として～査読

石川忠晴, 河内敦, 赤穗良輔

河川技術論文集 29 407 - 412 2023年6月

Application of Running Water-Type Retarding Basin to Old Kinu River Floodplain, Japan 査読

Tadaharu Ishikawa, Ryosuke Akoh

Hydrology 10 ( 4 ) 94 - 94 2023年4月

担当区分：最終著者記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：MDPI AG

In the upper and middle reaches of rivers in Japan, river channels used to meander in a comparatively narrow floodplain and heavy rain runoff used to naturally expand over the entire floodplain, retarding floods toward the downstream. Recent continuous levee building to prevent river overflow has had two kinds of negative effects, namely an increase in flood damage in areas of a floodplain closed by levees and river terraces at the time of runoff over the river channel capacity, and an increase in the flood peak toward the downstream. This study introduces the concept of a running water-type retarding basin that mitigates flood damage by allowing excess runoff to pass through the floodplain, restoring a natural hydrological process. After a description of the concept of the facility design, a design example is presented for a closed floodplain of the Kinu River Floodplain, where excess runoff caused severe flood damage in 2015, to quantify the performance and effects of the running water-type retarding basin.

DOI： 10.3390/hydrology10040094

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Measurement and Computational Study of Underwater Topography 査読

Satoshi Iwakami, Masahiko Tamega, Masahide Sanada, Michiaki Mohri, Yoshitaka Iwakami, Naoki Okamoto, Eishi Mitsui, Hidetaka Chikamori, Ryosuke Akoh, Shuji Jimbo, Masaji Watanabe

Journal of Geoscience and Environment Protection 11 ( 4 ) 203 - 209 2023年4月

Flood Disaster Mitigation Strategy in the Early Modern Age in Japan (The Beginning of 17th to the Mid-19th Century) 査読

Tadaharu Ishikawa, Ryosuke Akoh, Hiroshi Senoo

International Journal of Environmental Impacts 6 ( 1 ) 1 - 6 2023年3月

砂川の洪水氾濫解析と決壊予測手法を用いた堤防決壊リスク評価査読

赤穗良輔, 西俣孝一, 池尻悠人, 前野詩朗

土木学会論文集B1(水工学) 78 ( 2 ) I_667 - I_672 2022年11月

逆サイホンを用いた閉鎖性氾濫原からの氾濫水の早期排除と超過洪水対策に関する考察査読

赤穂良輔, 石川忠晴

土木学会論文集B1(水工学) 78 ( 2 ) I_229 - I_234 2022年11月

高梁川水系軽部川における田んぼを活用した流域治水対策の検討査読

赤穗良輔, 池尻悠人, 前野詩朗

土木学会論文集B1(水工学) 78 ( 2 ) I_253 - I_258 2022年11月

NUMERICAL SIMULATION OF COUPLED DEBRIS FLOW AND INUNDATION DISASTER CONSIDERING MICROTOPOGRAPHY: A CASE STUDY OF NIIMI CITY, 2019 査読

Weijian HUA, Ryosuke AKOH, Shiro MAENO

Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 78 ( 2 ) I_673 - I_678 2022年11月

PHYSICAL ENVIRONMENTAL CHARACTERISTICS OF THE OTOGO TIDAL FLAT IN THE YOSHII RIVER AND PROPOSAL OF NEW TIDAL FLAT CREATION SITES 査読

Mohammed AL-BAGHDADI, Ryosuke AKOH, Shiro MAENO

Journal of JSCE 10 ( 1 ) 467 - 478 2022年9月

川辺川合流点上流の球磨川氾濫原の変化が令和2年出水に及ぼした影響の概略評価査読

石川忠晴, 赤穂良輔

土木学会論文集B1（水工学） 77 ( 1 ) 185 - 190 2021年12月

倉敷市真備地区の洪水解析結果を用いた堤防越流による決壊予測に関する研究査読

赤穗良輔, 華威鑒, 前野詩朗

土木学会論文集B1(水工学) 77 ( 2 ) I_367 - I_372 2021年11月

内水氾濫と外水氾濫を考慮した効果的な避難場所設置と避難開始時刻の検討査読

赤穗良輔, 西俣孝一, 池尻悠人, 華威鑒, 前野詩朗

土木学会論文集B1(水工学) 77 ( 2 ) I_1495 - I_1500 2021年11月

治水安全度向上のための流水型遊水地の試験的設計と数値実験による評価査読

原田翔太, 石川忠晴, 赤穂良輔, 前野詩朗

土木学会論文集B1(水工学) 76 ( 2 ) I_457 - I_462 2020年

数値シミュレーションによる山間河川における流水型遊水地の水理機能に関する考察査読

伊藤康, 石川忠晴, 赤穗良輔

土木学会論文集B1(水工学) 76 ( 2 ) I_451 - I_456 2020年

Assessment of flood risk management in lowland Tokyo areas in the seventeenth century by numerical flow simulations 査読

Tadaharu Ishikawa, Ryosuke Akoh

Environmental Fluid Mechanics 19 ( 5 ) 1295 - 1307 2019年10月

Flooding Along Oda River Due to the Western Japan Heavy Rain in 2018 査読

Yasuo Nihei, Asataro Shinohara, Kaho Ohta, Shiro Maeno, Ryosuke Akoh, Yoshihisa Akamatsu, Takashi Komuro, Tomoya Kataoka, Shiho Onomura, Ryo Kaneko

Journal of Disaster Research 14 ( 6 ) 874 - 885 2019年9月

記述言語：英語掲載種別：研究論文（学術雑誌）出版者・発行元：Fuji Technology Press Ltd.

The heavy rain that hit Western Japan in July 2018 triggered the worst rain-related disaster in the Heisei era, with the total of dead and missing persons exceeding 230, mainly in the Hiroshima and Okayama Prefectures. At several locations along Oda River (of the Takahashi river system) and its tributaries, dikes were breached due to large-scale flood, leaving 51 persons dead. This paper aims to shed light on the scale of inundation along Oda River and its tributaries and identify the characteristics of and critical factors for human damage. Field surveys were conducted to measure flood marks in flooded areas and river channels, and gauge the extent of damage to people and property. The surveys found that a large area was inundated on the north side of Oda River, with an inundation depth exceeding 5 m for 1 km in the south-north direction and 3.5 km in the east-west direction, which made vertical evacuation of residents difficult. The findings that about 80% of the dead were found on the first floor of their houses, with those who had lived in a one-story house and those who had lived in a two-story house accounting for 50% each of the deceased, indicate how difficult even vertical evacuation was. The findings appear to be related to the considerable inundation depth and high rate of water level increase, along with the fact that the majority of the deceased were elderly people.

DOI： 10.20965/jdr.2019.p0874

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