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Akira ODA
Civil Engineering Research Laboratory
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Fumito WATANABE
Ohsumi Works Office, Ministry of Construction [in Japanese]
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Kesajiro YANAGISAWA
Jinzugawa suikei sabo works Office, Ministry of Construction
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Mamoru NAKAYA
Jinzugawa suikei sabo works Office, Ministry of Construction
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Takahisa MIZUYAMA
Laboratory of Erosion Control, Graduate School of Agriculture, Kyoto University
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Hikoshichi ABE
Civil Engineering Research Laboratory