Chapter
Apr 26, 2012
Rapid Stabilization of the Immersed Tunnel Element
Authors: Toshio Aono, Koushi Sumida, Ryuichi Fujiwara, Akiyuki Ukai, Kazuhiro Yamamura, and Yukio NakayaAuthor Affiliations
Publication: Coastal Structures 2003
Abstract
Stability of a tube element for the Naha Immersed Tunnel is experimentally and numerically investigated under various wave conditions. The construction site of the tunnel is located in Okinawa Island that suffered from frequent raids of typhoon. It is found through the investigation that weight control is not enough to stabilize the element during construction stage, and that backfilling on the sidewall of the element is inevitable. A rapid emplacement method is developed to construct the tunnel safely. No. 1 element was successfully placed with this method.
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Published In
Coastal Structures 2003
Pages: 394 - 404
Copyright
© 2004 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Authors
Affiliations
Toshio Aono
TOA Corporation, 5, Yonban-cho, Chiyoda-ku, 102-8451, Tokyo
Koushi Sumida
The Cabinet Office, Okinawa General Bureau, Naha harbors airport construction office, 2-6-11, Minatomachi, Naha, 900-0001 Okinawa
Ryuichi Fujiwara
TOYO Construction Co., LTD., Naruohama, Nishinomiya, Hyogo, 663-8142
Akiyuki Ukai
Penta-Ocean Construction Ltd., 1534-1, Yonkucho, Nishinasunomachi, Nasugun, 329-2746, Tochigi
Kazuhiro Yamamura
TOA Corporation, 5, Yonban-cho, Chiyoda-ku, 102-8451, Tokyo
Yukio Nakaya
TOA Corporation, 5, Yonban-cho, Chiyoda-ku, 102-8451, Tokyo
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