As for the design of observation well mold, different observation well mold manufacturers have different production principles, but in the design of observation well steel mold, we need to understand its overall structure, segmentation, layout, thickness and connection mode of steel plate. First, understand the overall structure of the steel mold of the inspection well. Its composition mode is in the form of block splicing. The internal mold can only be removed after people enter, so the internal mold is divided into more blocks than the external mold. If the block size * is not easy to remove the mold, so there will be two large and one small internal mold.
The fabrication of the observation well mold involves many details. For example, the prefabricated sewage inspection well shaft mold needs additional customized reserved holes, while the cast-in-situ sewage well can directly cut holes on the template. The setting of the reserved hole of the observation well mold also depends on the pipe material and wall thickness. In particular, pay attention to the cement pipe used for the sewer pipe above 500mm. The wall thickness generally increases with the increase of the inner diameter of the pipe. The use of reserved holes in the shaft mold of the cement inspection well effectively meets the laying problems of two-way, three-way and four-way pipes. Especially when prefabricating the sewage well, no matter how many pipe wells are connected, the setting of connecting pipes can be realized by placing the same number of reserved holes.
The second is segmentation. Generally, the observation well is manufactured according to the one meter section, so that it will be convenient for both installation and concrete inspection well production. Screws can be used to connect up and down, so that the height of the inspection well that can be produced can be adjusted at will. In terms of layout, inspection wells are usually marked in the form of numbers. The layout of on-site pouring is often more complex than that of prefabricated inspection wells. It is required to cut reserved holes matching the size of the laid pipeline at the bottom. There are no special requirements for the plate thickness of the prefabricated inspection shaft steel mold. Usually, 4mm steel plate is used, so as to ensure the number of times of repeated use