STUDY ON SIMPLE SURVEY METHOD GRAVEL BED OF SURFACE AT BEDROCK RIVER BY NON-DESTRUCTIVE EXPLORATION AND IMAGE ANALISYS
Takaaki SATO, Akinobu OGASAWARA, Shigeaki NIITSUMA, Michihiro HAMAKI, Shunzo KAWAJIRI, Yasuharu WATANABE
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Keywords:
bedrock river,
gravel bed of surface,
non-destructive exploration,
S-wave velocity,
image analysis
2022 Volume 28 Pages 319-324
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