| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rehabilitation method of a manhole inner wall surface, by which the deteriorated manhole inner wall surface is rehabilitated quickly and inexpensively, as well as a rehabilitation device used for the same. <P>SOLUTION: A cylindrical mold 210 is mounted at the lower end of a straight wall part 120 within a manhole 100 while being spaced apart from the manhole inner wall surface 101, grout materials 510 are injected into the space between the cylindrical mold 210 and the manhole inner wall surface 101. The grout injection is repeated to form a lining layer in the entire surface of the straight wall part 120 while lifting the cylindrical mold 210 upward sequentially. After having removed cylindrical mold 210, a truncated conical mold 410 is mounted at the slanting wall part 130 within a manhole while being spaced apart from the manhole inner wall surface 101. The grout materials 510 are injected into the space between the truncated conical mold 410 and the manhole inner wall surface 101, to form a lining layer in the entire surface of the slanting wall part 130, afterwards the truncated conical mold 410 is removed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
