Rapid manhole cover repairing method

Abstract

The invention discloses a rapid manhole cover repairing method which comprises the following steps: pre-casting and manufacturing a prefabricated well shaft; performing annular cutting on concrete at the upper part of the inner wall of a well to be repaired by using cutting equipment; putting the prefabricated well shaft into the well and placing on a cut horizontal cross section, screwing an adjusting bolt into a grouting through hole of an embedding screw nut, and enabling the bolt to jack the horizontal cross section; injecting rapidly cured slurry into the rest of the grouting through hole, after the rapidly cured slurry is cured, taking out the bolt, and placing the manhole cover back to the well shaft, thereby completing maintenance of the well. As the prefabricated well shaft with the grouting through hole is cast and manufactured in advance, after the upper part of the well is cut off, the well can be rapidly replaced and mounted, and in addition the prefabricated well shaft can be completely cured and dried, and is high in stability; moreover, the grouting through hole in the prefabricated well shaft, and the prefabricated well shaft can be allowed to have certain errors with a cut part, so that the cost and the cutting precision of the prefabricated well shaft can be reduced, and the errors can be adjusted through the bolt inside the grouting through hole.

Description

technical field [0001] The invention relates to the field of maintenance of municipal drainage wells, in particular to a quick maintenance method for well covers. Background technique [0002] The drainage well is easy to install, light in weight, easy to transport and install, reliable in performance, strong in bearing capacity, good in impact resistance, corrosion-resistant, aging-resistant, easy to connect with plastic pipes, good in sealing, effectively preventing sewage leakage, safe and environmentally friendly; The inner wall is smooth and smooth, the dirt is not easy to stay, the possibility of clogging is reduced, and the discharge rate is greatly enhanced; the shaft can be cut and adjusted on site to meet various installation depth requirements, effectively reducing costs, and can be constructed around the clock, greatly improving the construction progress. [0003] The well body of the existing municipal highway drainage well is easily damaged and deformed due to ...

AI Technical Summary

Problems solved by technology

[0003] The well body of the existing municipal highway drainage well is easily damaged and deformed due to the extrusion of vehicles. When maintaining the existing highway drainage well, it is necessary to cut off the upper part of the well body and re-cast cement to form it. In order to ensure the stability of the well body, usually the cutting part It will be more than the damaged part, so the newly poured cement will be more and the molding speed will be slower, which will seriously affect the maintenance efficiency of drainage wells and increase the road maintenance time

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