Hainan plastic inspection well

(1) The pit excavation shall be carried out at the same time as the pipe trench. During excavation, the main line of the well seat shall be on the same axis as the pipe in the pipe trench.

(2) The pit slope shall be consistent with the pipe trench slope.

(3) The net size of pit bottom excavation shall not be less than the provisions of the Technical Specification for Application of Plastic Drainage Inspection Wells in Building Communities.

(4) The pit of rainwater inspection well with mud chamber shall be excavated locally according to the selected specifications.

(5) The pit excavation shall be carried out according to the selected specifications, taking into account the offset factor of the main line of the well seat, and the pit wall at the offset end shall be flush with the pipe end.