Shandong nodular cast iron manhole cover is more common on the road, usually its quality will have a certain use demand, because there are many vehicles and pedestrians on the road, so its safety issues are more concerned, so how to correctly judge the damage of the manhole cover? This is how to do.
1。 If the manhole cover of nodular cast iron is not tight, the gap is large and the rust is mottled, there will be great danger。
2. According to the location of the sewer and the surrounding road conditions, if the well cover is only buried on the cement ground (also buried at the entrance of the community), there is generally no major problem.
3. There is a ductile iron manhole cover on the roadside green belt, which is generally not to be trampled, especially the manhole cover on the edge is incomplete, which is very dangerous.
4. For the manhole cover around the parking lot, please pay attention not to park the car on the manhole cover when parking in the warehouse.
5. Prepare for night lighting. If there is no street light or the light is dim, please bring your own flashlight.
6。 Some of the green belt's ductile iron manhole covers protrude outside。 At this time, children should be prevented from sitting on them and playing, and manhole covers should be prevented from smashing into the inside。
7. Don't cross the road. There are many manhole covers on the road.
The damage of the manhole cover of nodular cast iron can be judged by observation. In case of any suspicious manhole cover, walk around as much as possible, otherwise dangerous situation will occur, which will easily cause personal safety hazards. For the installation of manhole cover, pay more attention to prevent the damage of the manhole cover caused by the wrong installation.
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