| 摘要 |
Disclosed is a method for repairing a manhole. According to the present invention, the method for repairing a manhole embedded between a concrete structure and a paved surface of a road and having a manhole frame and a manhole cover includes following the steps: cutting the paved surface of the road located on the outside of the manhole; breaking the paved surface of the road, removing the manhole, and forming a given space through which the top surface of the concrete structure is exposed to the outside; adjusting the height of the manhole frame by means of at least one height adjustment member placed on the concrete structure so that the top of the manhole fame is flush with the paved surface of the road; supporting a hot air heat pipe by means of pipe supporters so that the hot air heat pipe is arranged at a certain distance from the concrete structure; filling the space portion with a given quantity of mortar filling material to form a mortar layer in which the hot air heat pipe is embedded; connecting the inlet of the hot air heat pipe exposed on the top surface of the mortar layer to a hot air supply line and supplying a heat source to the mortar filling material by means of the hot air forcibly supplied through the inlet to cure the mortar layer; and covering the mortar layer with ascon and smoothening the ascon whose surface is flush with the paved surface of the road. |
