The inspection well mould is a kind of supporting facility for installing and burying in the soil below the surface and connecting with the urban drainage and sewage pipe network, mainly composed of well cover steel mould, wellhead steel mould, well body steel mould, connection hole mould, etc. The general inspection well steel mould is round, the inner diameter of the well body is 100cm, the outer diameter is 120cm, the total height is 150cm, the closing diameter is 70cm, the steel plate used for the inspection well mould is 4mm thick, and the rib is 8mm thick. Use method of inspection well steel mold: brush a layer of oil or mold release agent on the internal mold of inspection well steel mold, then pour the mixed cement or concrete into the inspection well steel mold, vibrate with a vibrating rod to eliminate the air bubbles in the cement, and remove the mold during the initial setting of the concrete. The time is about 24 hours.
The inspection well mold is mainly for design. According to the diameter and height of the mold, the reasonable design of the inspection well mold structure is needed. For example, the size, weight of each mold and the demoulding problem in later use need to be considered. The inspection well mold is divided into blocks and assembled when it is used. This combined design scheme is for the convenience of workers' handling and good demoulding 。 The connecting hole of the inspection well mold can also be adjusted. The commonly used connecting hole mold diameter is 30cm, 40cm, 50cm, 60cm, 70cm, 80cm, 90cm, 100cm, 110cm, 120cm, etc. generally, the larger the inspection well mold is, the larger the size of the connecting hole is.