Method for detecting breakage of road surface manhole cover

Abstract

The application discloses a method for detecting breakage of a road surface manhole cover. The method comprises the following steps: providing a manhole cover with a detecting device; when the upper surface of the manhole cover is broken, calculating the ratio of the breakage and loss weight of the upper surface of the manhole cover to the weight when the manhole cover is initially installed; whenthe upper surface and the lower surface of the manhole cover are broken in a penetrating manner, calculating the distance from the broken position to the centre of the manhole cover and the area of the broken position. According to the method for detecting the breakage of the road surface manhole cover, quantitative analysis of the breakage of the manhole cover is realized by adopting the detecting method of a multi-sector detection network; the area, the position and the broken area of the manhole cover can be accurately detected; comprehensive detection of the breakage of the manhole coveris facilitated, so that the level of the potential safety hazard of the manhole cover is evaluated, and priority processing of managerial personnel is facilitated; the treatment efficiency is improved. The penetrating breakage of the manhole cover can be detected; the breakage and the fragmentation of the upper surface of the manhole cover can also be detected and evaluated in time.

Description

technical field [0001] The invention relates to the field of inspection well cover safety, in particular to a method for detecting damage to the inspection well cover on the road surface. Background technique [0002] With the acceleration of urbanization, the construction of municipal public facilities has developed rapidly. Electricity, communication and other departments mostly have manhole covers managed by their own departments. Due to the expansion of the urban area, the distribution of manhole covers is wide and the number is large, which makes supervision difficult, and manhole cover theft and manhole cover damage are increasing. According to statistics, the annual number of manhole cover theft and loss in general cities accounts for about 1% of the total number, and cities with better municipal management also account for about 0.5%. The theft and damage of these manhole covers has affected the normal function of the facilities, and brought great potential safety h...

AI Technical Summary

Problems solved by technology

[0005] (2) It is impossible to accurately detect the damaged position and damaged area of ​​the manhole cover

[0006] Some products propose to detect the damage of the manhole cover through the detection line on and off, so as to roughly estimate the damage degree of the manhole cover, but in the case of the same detection line disconnection, the damage area of ​​the manhole cover may be very small or very Large, unable to accurately locate the damage of the manhole cover

[0007] (3) It is impossible to detect the damage of the upper surface of the manhole cover and the complete layered damage of the lower surface

[0008] Many inspection manhole covers are made of concrete or synthetic resin. When the manhole cover is repeatedly rolled by vehicles, the upper surface of the manhole cover will gradually be damaged and fragmented, and the depth of the damage will gradually deepen. The strength of the manhole cover itself is greatly reduced, but the lower surface of the manhole cover It is intact, and the damage degree of the manhole cover cannot be detected by means of limit switches and disconnection detection, and safety hazards cannot be ruled out

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