關于觀察井模具的設計，在不同的觀察井模具生產廠家有著不同的生產原則，但是在觀察井鋼模具設計上，我們需要了解他的整體構造、分段情況、布局情況以及鋼板的使用厚度，連接方式等等。先是了解檢查井鋼模具的整體構造，它的構成模式是按照分塊拼接的形式，內模需要人進去之后才能拆模，所以內模分塊比外模多，如果是分塊大小的話也不好拆模，所以會出現兩塊大的一塊小的內模分塊情況。
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.
觀察井模具的制作涉及到很多細節問題，比如預制使用的污水檢查井井筒模具就需要額外定制預留孔，而現澆生產的污水井直接在模板上割出孔來就可以了。觀察井模具預留孔的設置還要看使用的管道材質以及壁厚大小，尤其要注意500毫米以上的下水管道使用的水泥管，壁厚一般都是隨著管道的內徑增加而增加的。水泥檢查井井筒模具預留孔的使用有效的滿足了二通、三通、四通管道的鋪設問題，尤其實在預制污水井的時候，不管就是幾通的管道井，都是可以通過放置相同數量的預留孔來實現連接管道的設置了。
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.
其次是分段，一般觀察井都是按照1米一節的制造模式，這樣不論是安裝還是混凝土檢查井的生產都會便利，上下可以使用螺絲進行連接，這樣可以生產的檢查井高度就可以隨意調節了。在布局情況上，檢查井通常是按照數字的形式進行標注，往往現場澆筑的布局比預制檢查井復雜一些，要求底部割出大小與所鋪設的管道相匹配的預留孔。預制檢查井井筒鋼模具的板材厚度沒有特別要求，通常情況下都是使用4毫米的鋼板，這樣就可以保證多次重復使用的次數
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
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