Japan Society of Civil Engineers 2025 Annual Meeting
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Session Details

Oral PresentationSection III

杭②

Thu. Sep 11, 2025 1:00 PM - 2:20 PM JST
Thu. Sep 11, 2025 4:00 AM - 5:20 AM UTC
3F F1+F2
1:00 PM - 1:10 PM JST(4:00 AM - 4:10 AM UTC)

[III-267]Effect of ground reinforcement by small pile group(part1)

*Natsumi Sakamoto1, Akihiro Wada1 (1. East Japan Railway Company)
1:10 PM - 1:20 PM JST(4:10 AM - 4:20 AM UTC)

[III-268]Effect of ground reinforcement by small pile group (part 2)

*Akihiro Wada1, Natsumi Sakamoto1 (1. East Japan Railway Company)
1:20 PM - 1:30 PM JST(4:20 AM - 4:30 AM UTC)

[III-269]Investigation of vertical bearing characteristics of rotary press-in steel pipe piles using rapid load tests (Part 1: Selection of analysis method)

*Shuichi Kamei1, Shihchun Lin1, Kengo Suzuki2, Yoshiro Ishihama2, Takaaki Nagaura2 (1. Jibanshikenjo Co., Ltd., 2. NIPPON STEEL CORPORATION)
1:30 PM - 1:40 PM JST(4:30 AM - 4:40 AM UTC)

[III-270]Investigation of vertical bearing characteristics of rotary press-in steel pipe piles using rapid load tests(Part 2: Analysis and discussion)

*Kengo Suzuki1, Yoshiro Ishihama1, Takaaki Nagaura1, Shuichi Kamei2, Shihchun Lin2 (1. NIPPON STEEL CORPORATION, 2. Jibanshikenjo Co., Ltd.)
1:40 PM - 1:50 PM JST(4:40 AM - 4:50 AM UTC)

[III-271]Trial Production and Axial Force-Bending Test of High-Strength Steel Pipe Pile with Yield Stress over 450 MPa

*Yoshio Shiozaki1, Yousuke Ohya2, Eiji Kohama2 (1. JFE Steel Corporation , 2. National Institute of Maritime, Port and Aviation Technology Port and Airport Research Institute)
1:50 PM - 2:00 PM JST(4:50 AM - 5:00 AM UTC)

[III-272]Results of Full-Scale Experimental Verification of the Soil-Cement Pile Method Employing High-Performance Dispersants

*Ryo Inoue1, Ryoetsu Saito2, Sho Oyama3 (1. JFE Steel Corporation, 2. GEO DYNAMIC co, 3. KONOIKE CONSTRUCTION CO)
2:00 PM - 2:10 PM JST(5:00 AM - 5:10 AM UTC)

[III-273]Analytical Study on End Bearing Characteristics of Pile Tip for Soil-Cement Composite Pile

*Shohei Koga1, Naito Tetsuro1, Tsuchiya Nobuaki1, Watanabe Koji2, Yashima Kento2 (1. Obayashi Corporation, 2. Aichi Institute of Technology)
2:10 PM - 2:20 PM JST(5:10 AM - 5:20 AM UTC)

[III-274]Study on the characteristic values of the bearing capacity of High capacity Micro-Piles
- Static Axial Compressive Load test of micro-piles in the sandy ground -

*Yoji Hontani1, Yoshikazu Inatomi2, Tetsuya Yada3, Masatoshi Hirai4, Nobuharu Hikita5, Yutaka Matsumoto6, Kengo Nakakoga2, Akira Fujioka6 (1. SANSHIN CORPORATION, 2. KYOKUTO KOWA CORPORATION, 3. NITTOC CONSTRUCTION CO.,LTD., 4. JAPAN FOUNDATION ENGINEERING CO., LTD., 5. HIROSE HOKYODO &CO.,LTD., 6. KOKANKYO Engineering Corporation)
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