What is yin and yang manhole cover

In garden or exterior network design, a yin and yang manhole cover is one half in the green space and one half in the paving. It can also refer to a manhole cover that is half skeletonized and half non-skeletonized. Outdoor comprehensive pipeline is more, in order to ensure the overall landscape effect, the paved area of the well cover need to do decorative treatment, green space in the tube well completion surface need to determine the completion surface elevation according to the landscape backfill, at the same time, the well cover in the green space should be designed as a green double-layer well cover.

Reasonable design to avoid or reduce the main entrance, unit entrances and other important node location of the manhole cover or with the pavement is not coordinated; and curbstone, pool wall is occupied by the manhole cover, water features in the manhole cover, etc.. Comprehensive pipeline network of pipe wells location and landscape design conflict, affecting the effect, in the early stage of construction drawings to actively communicate with the owner to discuss solutions.

The art of manhole covers:

The manhole cover, has become a city card in Japan. It began as a solution to a practical detail, became an art because of its exquisite workmanship, and finally grew in popularity into a special culture. In almost every city in Japan, you can see colorful sewer manhole covers with animals, landscapes, historical stories or city features printed on them, with a strong sense of design.

The tradition of using beautiful designs on manhole covers began in the 1880s with a Japanese man named Yasutake Kameda. He was an architect at the National Architectural Office of Japan at the time. He encouraged cities, towns and villages to develop their own designs for manhole covers with local characteristics. Gradually, personalized manhole covers became popular throughout Japan.