Prevention apparatus for coastal erosion and lost sand

摘要

The present invention relates to an apparatus for preventing coastal erosion and sand loss by using a hydraulic jump, wherein a hydraulic jump is used to effectively prevent coastal erosion and sand loss due to waves. To this end, the apparatus comprises: a pair of support blocks installed on a shore at a predetermined interval; a rotary shaft penetrating between the support blocks to be installed at a predetermined height; at least one paddle hung on the rotary shaft to be rotated by running water, and configured to prevent sand conveyed to the shore in accordance with waves of sea water from being discharged outside the shore; and a blade formed on both sides of the paddle to dig the sand conveyed to the shore in accordance with the waves of the seawater toward the shore.