Japan Society of Civil Engineers 2026 Annual Meeting
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Session Details

Section II

河川環境構造物

Thu. Sep 3, 2026 9:20 AM - 10:40 AM JST
Thu. Sep 3, 2026 12:20 AM - 1:40 AM UTC
AV Room 5, 4th Floor, Library (Hokkai-Gakuen University)
9:20 AM - 9:30 AM JST(12:20 AM - 12:30 AM UTC)

[II-141]Investigation of Methods to Reduce Water Surface Variations in the Small Fishway of the Miyanaka Intake Dam

*Yosuke Takeuchi1, Yasuyuki Harada1, Ryusuke Kasahara1, Akira Sekiya2, Shogo Kato2 (1. East Japan Railway Company, 2. CTI Engineering Co., Ltd.)
9:30 AM - 9:40 AM JST(12:30 AM - 12:40 AM UTC)

[II-142]Quantitative Relationship Between Flow Characteristics Modified by Roughness Geometry and the Swimming Behavior of Tribolodon hakonensis in a Steep Stream-Type Fishway

*Masahide Hayashi1, Miyuki Ishizuka1, Katsuhiro Suzuki1, Muneyuki Aoki2 (1. Asaka Land Development Office, 2. Toyo University)
9:40 AM - 9:50 AM JST(12:40 AM - 12:50 AM UTC)

[II-143]Difference of Velocity Field Passing Over Fish Passage with Assembled Boulders in the Ship Way due to Installation Region of Assembled Boulders

*Yuki Aono1, Youichi Yasuda1 (1. Nihon University)
9:50 AM - 10:00 AM JST(12:50 AM - 1:00 AM UTC)

[II-144]Development and Field Evaluation of a Vertical Fish Pass to Assist the River Migration of Anguilla japonica

*Toru Aota1, Keigo Kimura1, Katsumi Kijima1, Kazuhiko Anraku2 (1. FUDO TETRA CORPORATION, 2. KAGOSHIMA UNIVERSITY)
10:00 AM - 10:10 AM JST(1:00 AM - 1:10 AM UTC)

[II-145]Characteristics of Flow Passing Through Crushed Stones Installed Between Assembled Boulders Units in Channelized River

Youiti Yasuda1, *Mikoto Yanase1 (1. Nihon University)
10:10 AM - 10:20 AM JST(1:10 AM - 1:20 AM UTC)

[II-146]Biological monitoring survey around rock bags at detached breakwaters on the Suruga coast, Shizuoka

*Shutaro Akiyama1, Hiromichi Tanaka2 (1. NAKADA INDUSTRIAL CO.,LTD., 2. PROFESSOR EMERITUS, TOKAI UNIVERSITY)
10:20 AM - 10:30 AM JST(1:20 AM - 1:30 AM UTC)

[II-147]Field Survey on Calm Zone Behind Mount Unit Consisted by Boulders in Kasumigaura Lake

Youichi Yasuda1, *Natsumi Nemoto1 (1. Nihon University, College of Science and Technology, Department of Civil Engineering)
10:30 AM - 10:40 AM JST(1:30 AM - 1:40 AM UTC)

[II-148]Multi-Year Fish Monitoring and Upstream Migration Confirmation at a Flood Mitigation Dam

*Maiko Akatsuka1, Hiroaki Misaka1, Masahiro Morishita2, Tetsushi Yamamura2 (1. Taisei Corporation, 2. Oita Prefecture)
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