Rapid manhole cover repairing method

A fast and well-covering technology, applied to waterway systems, drainage structures, water supply devices, etc., can solve problems such as easy damage and deformation, affecting drainage well maintenance efficiency, and slow cement molding speed

Inactive Publication Date: 2017-09-05
广州展亚土木工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 en

Method used

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  • Rapid manhole cover repairing method
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Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Such as Figure 1-6 As shown, the specific embodiment of the present invention is a quick repair method for manhole cover. Such as image 3 , the prefabricated wellbore 5 is made by pouring in advance, which is a circular cylinder, and a plurality of grouting through holes 4 are evenly distributed on the wall of the prefabricated wellbore 5, and nuts 9 are fixedly embedded in part of the grouting throughholes 4; specifically The operation steps are as follows:

[0021] In the first step, as shown in Figure 4, the concrete on the upper part of the inner wall of the pre-repaired well body 2 is circularly cut by the cutting device 1. The axial length of the cut part is greater than the height of the prefabricated well shaft 5, and the well body 2 after cutting forms a horizontal section. Then remove the excised part;

[0022] ...

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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 ...

Claims

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Application Information

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IPC IPC(8): E03F5/04
CPCE03F5/0401
Inventor 王海洋杨志刚晏鹏翔刘灿锋钟贤
Owner 广州展亚土木工程技术有限公司
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