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*Noriyuki Sumita
Civil Engineering Research Institute for Cold Region, Public Works Research Institute
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Masahiro Ishikawa
Civil Engineering Research Institute for Cold Region, Public Works Research Institute
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Go Miura
Civil Engineering Research Institute for Cold Region, Public Works Research Institute
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Ryuichi Nakamura
Civil Engineering Research Institute for Cold Region, Public Works Research Institute
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Takashi Yamazaki
Civil Engineering Research Institute for Cold Region, Public Works Research Institute