耐越流侵食性向上のための河川堤防補強技術の提案

倉上 由貴; 二瓶 泰雄; 矢田 孝次朗; 山﨑 達也; 山口 晋平; 川邉 翔平; 菊池 喜昭; 龍岡 文夫

doi:10.2208/jscejhe.69.I_1219

Annual Journal of Hydraulic Engineering, JSCE, Vol.57

REINFORCING TECHNOLOGY OF RIVER LEVEE FOR INCREASING RESISTANCE AGAINST OVERFLOW EROSION

Yuki KURAKAMI, Yasuo NIHEI, Kojiro YADA, Tatsuya YAMAZAKI, Shinpei YAMAGUCHI, Shohei KAWABE, Yoshiaki KIKUCHI, Fumio TATSUOKA

Author information

Yuki KURAKAMI
Graduate Student, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Yasuo NIHEI
Associate Professor, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Kojiro YADA
Undergraduate Student, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Tatsuya YAMAZAKI
Undergraduate Student, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Shinpei YAMAGUCHI
Graduate Student, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Shohei KAWABE
Assistant Professor, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Yoshiaki KIKUCHI
Professor, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science
Fumio TATSUOKA
Visiting Professor, Department of Civil Engineering, Faculty of Science and Technology, Tokyo University of Science

Keywords: levee, geotextile, overflow, erosion, flood

JOURNAL FREE ACCESS

2013 Volume 69 Issue 4 Pages I_1219-I_1224

DOI https://doi.org/10.2208/jscejhe.69.I_1219

Details

Abstract

Levee breaches occurred at a great number of places in Japan mainly due to overflow of huge flood. To increase the resistance of levee to overflow erosion, we propose a new type of levee in which concrete panels connected to geogrid layers reinforcing the sand cover the slopes and crest of the levee. Various laboratory tests were conducted to evaluate the resistance of this method to overflow erosion. The results indicated that 1) the sand backfill having a degree of compaction lower than about 85 % has low resistance to overflow erosion due to too large infiltration; and 2) the proposed type of levee can survive overflow continuing for a long duration showing that it can function effectively as a flood barrier.

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