「巨石付き盛土砂州を用いた河岸防護工」の洪水被災と機能確保の技術検討

抄録

The bank protection work using sandbars with boulders in rapid rivers, which maintains and restores sandbars present originally at riversides, has been recently executed in many rivers in Japan. However, these works are in the process of accumulating technical and practical knowledge for ensuring bank protection functions during floods in rapid rivers.

The paper shows the results of investigation securing functions of the bank protection works based on the results of monitoring and analysis of a large flood experienced in the Jyoganji river .The improved design method of sandbars with boulders are investigated and proposed.