Indoor drainage pipe blockage is a common quality problem in the construction and installation of engineering, and it is an old problem that the pipeline installation and civil engineering construction are difficult to solve. In the cross construction of civil engineering and installation, there are many cases of pipe blockage, especially the toilet drain pipe and floor drain are more serious. Even after the pipe is installed, the pipe mouth is closed with cement mortar and is often opened as a sewage discharge port for cleaning cement and leveling the ground.
In order to avoid the phenomenon of pipeline blockage in cross construction in the pipeline before installation, should carefully dredge the lumen, remove debris, reasonably according to the standard provisions of the proper use of drainage fittings; pipeline installation, should guarantee the slope, comply with the design requirements and specifications and the drainage pipe using cement mortar sealing measures, must also take a variety of techniques are as follows measures to prevent pipe blockage:
Since the building structure need reason, when the vertical pipe is provided with a sigmoid pipe, according to the specification requirements, a check in the upper sigmoid pipe to facilitate maintenance; when no design requirements, in accordance with the provisions of code for construction and acceptance of, in connection with 2 and more than 2 stool or 3 and 3 the sanitary ware sewage horizontal pipe cleaning port, the angle is less than 135 degrees on the sewage pipe, set up checkpoints or cleaning the mouth;
Installation of drainage pipes, underground discharge tube and the vertical tube is not connected with end plate or other tube inserted in the riser inspection method of a prison, and promptly fill vertical pipe through the floor hole two layer, confirming that the riser is fixed and reliable after removal of temporary supports, the boss should try to avoid civil construction as a temporary sewage discharge port. In the construction decoration basically completed, before the installation of water supply pipe for irrigation on the surface, test on the bottom and two floors above the pipe, the pipe that is smooth, and then through the sleeve (tube) tube will check the outlet pipe and the bottom discharge pipe connection.
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