SEDIMENT RECOVERY METHOD AND SEDIMENT RECOVERY DEVICE

PROBLEM TO BE SOLVED: To provide a method of cutting only a hard sediment accumulated within a structure and recovering the same without accompanying with exchanging the cutting-head and without damaging the structure.SOLUTION: A sediment recovery method repeats a cutting step of cutting a part of a...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NAKAMURA YASUYUKI, WATATANI SATOSHI, SANO KAZUYA, MARUYAMA SHINICHIRO, IWAI HIROKI
Format: Patent
Sprache:eng ; jpn
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