| 摘要 |
PROBLEM TO BE SOLVED: To provide a water collecting pipe for subsoil drainage facilities that can maintain a subsoil drainage function without requiring periodical maintenance required conventionally, and thereby can reduce the maintenance cost in the subsoil drainage facilities, and provide a slime adhesion preventing method in the water collecting pipe for the subsoil drainage facilities.SOLUTION: A water collecting pipe 1 for subsoil drainage facilities is buried at a slant in a slope of a natural ground A. The water collecting pipe 1 is provided with strainers 3 for collecting groundwater of the natural ground A bored in an external wall, and has a pipe body 2 provided with a discharge port for draining the groundwater collected through the strainers 3 at the end of the downstream side. A metal member 6 is disposed in the inside of this pipe body 2 while securing a flow path of the groundwater, the metal member that comes into contact with the groundwater collected through the strainers 3 and is dissolved, and contains magnesium as a main component for generating electron to suppress oxidation of iron ion contained in the groundwater.SELECTED DRAWING: Figure 1 |
