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Publication
Featured researches published by Tetsuo Ito.
Doboku Gakkai Ronbunshu | 2002
Yukitsune Ito; Tetsuo Ito; Masanobu Hara; Isamu Yoshitake; Koji Nakagawa
本研究は, 高速道路トンネル覆工コンクリートの変状に対する点検評価システムの構築を目的としたものである. 点検評価にあたり, 従来から行われている定性的な目視点検によらず, 覆工1スパンごとにレーザー光による撮影画像を用いたVTR画像解析を実施し, ひび割れ (変状) の客観的評価を行った. さらに, 変状の著しいものには詳細な解析を行い, 以後の補修・補強計画に対する判定基準を設定した. このような点検手法をとりまとめ, 点検評価システムの体系化を試みた. また老朽化等によって変状をきたしたトンネルに対して同システムを適用し, 中国地方における変状トンネルの現状をとりまとめ, 評価を行った.
PROCEEDINGS OF TUNNEL ENGINEERING, JSCE | 2001
Koji Baba; Hiromichi Shiroma; Tetsuo Ito
In view of the new observation technology of a tunnel concrete lining behavior, several optical fiber sensors were installed on the surface of the actual size loading test specimen of a concrete, which simulates a tunnel concrete lining, to measure the deformation of the specimen. The relationship between the behavior of the concrete specimen and the sensor location or sensor length was studied to investigate an applicability of the sensors for measurement of a concrete lining. It was concluded that optical fiber sensors can be one of the long term observation systems of a tunnel concrete lining behavior.
Doboku Gakkai Ronbunshuu F | 2006
Nobuo Sano; Tetsuo Ito; Koji Baba; Kazuo Nishimura; Isamu Yoshitake; Koji Nakagawa
Doboku Gakkai Ronbunshuu F | 2006
Nobuo Sano; Tetsuo Ito; Koji Baba; Yoshiyuki Kojima; Kiwamu Tsuno; Yoshikazu Kawashima; Shigeru Matsuoka
Doboku Gakkai Ronbunshu | 2005
Noboru Okuno; Koichi Shimazu; Tetsuo Ito; Koji Baba; Isamu Yoshitake; Koji Nakagawa
Doboku Gakkai Ronbunshu | 2003
Koji Baba; Tetsuo Ito; Hiromichi Shiroma; Kazuya Miyano; Hiroshi Nakajima; Hirofumi Taniguchi
Doboku Gakkai Ronbunshuu F | 2006
Yoshiyuki Kojima; Kiwamu Tsuno; Nobuo Sano; Tetsuo Ito; Koji Baba; Shigeru Matsuoka; Yoshikazu Kawashima
Doboku Gakkai Ronbunshu | 2004
Koji Baba; Tetsuo Ito; Kenji Matsumoto; Shinichi Torigoe; Isamu Yoshitake; Koji Nakagawa
Doboku Gakkai Ronbunshu | 2004
Tetsuo Ito; Koji Baba; Hiromichi Shiroma; Isamu Yoshitake; Koji Nakagawa
Doboku Gakkai Ronbunshu | 2004
Tetsuo Ito; Koji Baba; Hiromichi Shiroma; Isamu Yoshitake; Koji Nakagawa
