⑴ Buried drainage pipes shall not be placed at places where they may be subject to pressure from heavy objects or through the bottom of production equipment. In special cases, it should be negotiated with the relevant professional.
⑵Drainage pipes must not pass through settlement joints, flues and air ducts, and must not pass through expansion joints. When it is necessary to pass the period subject to conditions, corresponding technical measures shall be adopted.
(3) When drainage pipes pass through load-bearing walls or roots, holes should be reserved. In addition, the headroom at the top of the pipe shall not be less than the settlement of the building, and generally not less than 0.15m.
套管 When the drainage riser passes through the floor, a casing shall be provided. For the cast-in-situ floor, holes or inlays shall be reserved. The size of the hole shall be 50 ~ 100㎜ larger than the pipe diameter.
最小 The minimum buried depth of the drainage pipe in the factory building should meet the requirements, and steel pipes or water-supply cast iron pipes should be used under the rails, and the minimum buried depth should not be less than 1.0m