| 摘要 |
A sewer pipe having a subsidence prevention structure is provided to prevent the vertical subsidence of a sewer pipe or the change of pipe arrangement caused by the subsidence of the soft ground, and to prevent the damage of a sewer pipe by external force by increasing strength. A sewer pipe having a subsidence prevention structure includes many construction grooves(12) formed on the inner end of an extension(11) of a sewer pipe(10), a ring-shaped closed concave part formed on the inner circumference of the extension and filled with hydrophilic water stops, a construction projection(15) formed on the outer circumference of the sewer pipe and inserted to the construction groove, a bottom support wing(16) formed to have a half of the radius of the sewer pipe on the rear side of the construction projection at the bottom of the sewer pipe and projected downward, right and left wings(17,18) formed to have three quarters of the radius of the sewer pipe on the right and left sides of the sewer pipe and projected horizontally to the right and left sides, and handle holes(19,19a,19b,19c) formed on the front and rear sides of the right and left wings to improve conveyance efficiency and constructability. |
