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Publication
Featured researches published by Koji Baba.
Doboku Gakkai Ronbunshuu D | 2007
Nobuo Sano; Koji Baba; Takaaki Yamada; Isamu Yoshitake; Koji Nakagawa; Kazuo Nishimura
トンネルにおける点検作業は，効率的に実施することが望まれている．高速道路トンネルにおける覆工コンクリートの詳細点検は，高所作業車を用いた近接目視と打音点検が主体となっている．本研究で提案する点検システムは，1)走行速度60km/h程度でも計測できる車両を用いて，2)覆工コンクリート表面画像の机上点検から健全度の劣るスパンを特定し，3)そのスパンに限定して従来の近接目視・打音点検を行うものである．この点検システムにより，点検技術者による現地点検回数の低減に伴う点検費用の削減，点検・調査の迅速化，安全性判断の早期化，詳細点検計画の効率的な立案などが可能となった．
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 Ronbunshuu F | 2009
Takaaki Yamada; Nobuo Sano; Koji Baba; Yoshiyuki Shigeta; Isamu Yoshitake; Kazuo Nishimura
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
