| 摘要 |
According to an embodiment of the present invention, provided is a dredging device digging underwater sediments, including a chamber having a tub shape including a floor part and a cover part covering the floor part and in which through holes are formed on the cover part and the floor part, respectively; an excavating part including a shaft installed on the lower part of the through hole of the floor part to be horizontally rotated and a plurality of blade parts attached to the surface of the shaft at regular intervals; a power part applying rotation power to the shaft of the excavating part; a plurality of pipes which is arranged in a row at regular intervals while surrounding the excavating part on a lower part of the floor part of the chamber and vertically stretching downwardly; and an outer wall vertically stretching downwardly along the border of the floor part of the chamber and surrounding the pipes. |
