[III] 維持・補修① | Japan Society of Civil Engineers 2025 Annual Meeting

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Session Details

Oral PresentationSection III

維持・補修①

Thu. Sep 11, 2025 9:00 AM - 10:20 AM JST
Thu. Sep 11, 2025 12:00 AM - 1:20 AM UTC

3F A2

9:00 AM - 9:10 AM JST(12:00 AM - 12:10 AM UTC)

[III-38]The collapse mechanism of the stone wall of the historic Marugame Castle ruins, which collapsed due to heavy rains in 2018

*Ikki Sedani¹, Shinya Yamaji¹, Hiroyuki Shimizu¹, Haruhiko Tsubaki¹, Tomoharu Naoi¹, Nobuo Azuma², Takayuki Obayashi², Issei Manabe², Ryouhei Nakamura², Yuuki Takashima² (1. Kajima Corporation, 2. Marugame City Hall)

9:10 AM - 9:20 AM JST(12:10 AM - 12:20 AM UTC)

[III-39]Restoration design for the stone walls of the historic Marugame Castle ruins, which collapsed due to heavy rains in 2018

*Koki Arimoto¹, Shinya Yamaji¹, Ikki Sedani¹, Haruhiko Tsubaki¹, Tomoharu Naoi¹, Nobuo Azuma², Takayuki Oobayashi², Issei Makabe², Ryouhei Nakamura², Yuuki Takashima² (1. KAJIMA Corporation, 2. MARUGAME City)

9:20 AM - 9:30 AM JST(12:20 AM - 12:30 AM UTC)

[III-40]Verification of the effectiveness of the latest fiber optic measurement technology in the inspection method of reinforced soil walls focusing on internal conditions

*Tatsuo Kokubo¹, Kinzo Kishida¹, Yoshiaki Yamauchi¹, Shigeru Miwa¹, Kimihiko Matsuda¹, Motohiro Inagaki², Takanori Kondo², Shuji Ito³, Shinichiro Tsuji³, Tetsuya Kubo³ (1. Neubrex Co., Ltd., 2. Central Nippon Expressway Company Limited, 3. MAEDAKOSEN CO., LTD.)

9:30 AM - 9:40 AM JST(12:30 AM - 12:40 AM UTC)

[III-41]Proposal for a new repair method for existing Sabo dams (Part 1)
- Evaluation of the soundness of existing Sabo dams and example of repair method.

*Yosuke Watanabe¹, Hikaru Yokobari¹, Hirokazu Akaki², Hailong Wang³ (1. Chemical Grouting Co., Ltd. , 2. WASEDA University, 3. The University of Tokyo)

9:40 AM - 9:50 AM JST(12:40 AM - 12:50 AM UTC)

[III-42]Proposal of a new repair method for existing Sabo dams: Part 2 Investigation of a new method for repairing deteriorated boulder concrete structures

*Hikaru Yokobari¹, Yousuke Watanabe¹, Hirokazu Akaki², Hailon Wang³ (1. Chemical Grouting CO.,LTD., 2. Waseda University, 3. The University of Tokyo)

9:50 AM - 10:00 AM JST(12:50 AM - 1:00 AM UTC)

[III-43]Analysis of Deterioration Trend in Shotcrete on Cut Slope

*Hirofumi Hisada¹, Emi Sasaki², Asuka Ono² (1. Nippon Expressway Research Institute Co.,Ltd, 2. OYO Corporation)

10:00 AM - 10:10 AM JST(1:00 AM - 1:10 AM UTC)

[III-44]A novel method for removing existing slope protection works and its merits

*Yasutaka Matsuura¹, Shinya Tanaka¹, Toshihiro Kawanami¹, Takuro Nakai² (1. West Nippon Expressway Engineering Chugoku Co., Ltd., 2. West Nippon Expressway Co., Ltd.)

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