What manhole cover is a manhole cover?

The manhole cover is used to cover the manhole.

There will be many underground pipelines in urban construction, such as sewers, underground gas pipelines, tap water pipelines, power pipelines, communication pipelines and national defense pipelines. These pipes should have an outlet to the ground at regular intervals. The section from the pipeline to the ground is called manhole, and the manhole is generally flush with the ground, so a cover is needed to cover the manhole cover.

Well covers are usually made of reinforced cement, metal, reinforced plastic and other materials, and their shapes are mainly round and square. Generally, the purpose of underground pipeline, storage unit, telephone number and other information should be indicated on the manhole cover.

origin

At present, traditional manhole covers are still popular in many cities. Fortunately, there are also some bright spots, such as the appearance of Shanghai landscape manhole cover. During the reconstruction of Nanjing Road Pedestrian Street in Shanghai, some manhole covers with unique shapes were set on the pavement of the rest area of the pedestrian street, and Shanghai's excellent historical buildings and modern architectural landscape were engraved on the manhole covers, and the building age was marked.