围模井是一种新的井新 ,围模井和水泥管井类似 ,井壁也是由一节一节的水泥管构成的 ,与其不同的是前者每节直径上小下大 ,井管呈圆台形 ,是现场浇筑的 ,施工工序开挖与浇筑同向 ,都是从上向下进行的 ,而后者每一节直径是相同的 ,井管呈圆柱形 ,井圈是预制的 ,施工工序是开挖与 Wai-ming is a new well wells, the surrounding wells and cement pipe wells similar to the well wall is also a section of the cement pipe structure, with the difference is that each of the former section on the diameter of small, well round Taiwan-shaped, pouring site, the construction process excavation and pouring in the same direction, are from top to bottom, and the latter each section is the same diameter, well tubular cylindrical shape, well ring is prefabricated, the construction process is Excavation and