Stainless steel waterproof casing pre-buried method of waterproof casing filling, engineering practi

1 . Cast-in-place floor, column within the penetration of the beam casing in line with the civil installation is completed, before pouring concrete should be filled tightly with newspaper, straw bales and other soft substances to prevent sand slurry into the casing and junction box caused by blockage.
 
2 . To prevent outdoor groundwater or rainwater from entering the basement through the waterproof casing, it can ensure a good construction environment for subsequent equipment installation.
 
3 . Pipe through the waterproof external wall, should be pre-buried with the structure of rigid or flexible waterproof casing.
 
4 . Pipeline through the wall, through the floor, through the roof should be pre-set holes with the structure, to be buried after the construction of the structure and then casing, through the wall pre-set casing at both ends must be sealed with tape and so on.
 
5 . The pipeline and pressure measuring pipe at the floor, wall and diffusion room of the human defense should be buried with the structure of the closed casing.