| 摘要 |
PURPOSE: An erosion preventing system is provided to prevent sand loss by reducing pore water pressure on sand beach and by reducing the amount of water flowing to the sea along the surface of sand beach. CONSTITUTION: An erosion preventing system comprises a hollow transfer pipe(11) and a water collection pipe(12). One end(111) of the hollow transfer pipe is located on the seafloor and opened. The other end part of the hollow transfer pipe is sealed up on a land. One side of water collection pipe is connected in order to pass through the hollow transfer pipe. The other side of water collection pipe is sealed up. The water collection pipe comprises a filter part and transport part. The filter part filters soil excluding water. |
