Study on Littoral Protection by Sand-Filled Tube

by Yoichi Fujikawa, CTI Engineering Co. Ltd., Osaka, Japan,
Yutaka Honjo, CTI Engineering Co. Ltd., Osaka, Japan,
Niels Henning Olsen, CTI Engineering Co. Ltd., Osaka, Japan,



Document Type: Proceeding Paper

Part of: Coastlines of Japan II

Abstract: This study focuses on a new, excellent construction method which excels in both the environmental and scenic aspects. It enables the construction of coastal structures such as jetty, detached breakwater or a groin, in short period of time. This method was developed in Denmark, and has since been employed in fifteen countries all over the world. It is known as the longard tube method. The following reports are on practical studies done in Japan, including the installation of longard tubes on site along lake Biwa, its results, follow-up surveys, and experimental results using a hydraulic model.

Subject Headings: Sand (material) | Construction methods | Model analysis | Hydraulic models | Jetties | Construction management | Coastal environment | Environmental issues | Spreadsheets | Denmark | Japan | Europe | Asia

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