This atlas mainly prepares two types of precast precast concrete inspection wells (hereinafter referred to as inspection wells), which are circular and rectangular.

Spherical Head Anchor

This atlas is applicable to drainage pipe works such as concrete pipe, reinforced concrete pipe, resin concrete pipe, buried plastic pipe, composite plastic pipe, ductile iron pipe and cast iron pipe with pipe diameter less than or equal to 2000mm.

It can be directly selected or used for reference by the design.

● Standards.

Issued on: August 1, 2022 Implemented on: August 1, 2022 Edited by: Beijing Municipal Engineering Research Institute, China Construction Standards Design and Research Institute Co., Ltd.

The atlas gives the reinforcement drawings, material lists, etc.

The bottom plate and the lower well chamber are integrated.

The inspection wells are composed of five parts: the lower well chamber, the upper well chamber, the cover plate, the shaft and the well cover.

of various components, and provides the detailed structural details of supporting connection nodes.

This atlas is prepared according to the current national standards and actual engineering experience, and provides the detailed design of the components of the inspection well with common dimensions, which meets the needs of the current national construction and municipal industry modernization development.

The depth of soil covering on the top of the cover plate is less than or equal to 4m, and the maximum allowable depth of the inspection well (that is, the height from the ground to the inner surface of the inspection well bottom plate) is 7m.

The specifications of round inspection well include: ∅ 800, ∅ 1000, ∅ 1200, ∅ 1500, ∅ 1800, etc; The specifications of rectangular inspection well include: 1100 × 1100、1400 × 1200、1600 × 1200、1800 × 1200、1800 × 1600、2200 × 1200、2400 × 2000、2800 × 1200、2800 × 9 specifications including 2200.

The production unit shall produce according to the design documents and atlas, and the construction unit shall construct according to the connection structure provided by the design documents and atlas.