采用同层排水对楼板的预制方案有无影响?
Does the same floor drainage affect the prefabrication scheme of the floor?
同层排水是指在建筑排水系统中，器具排水管及排水支管不穿越本层结构楼板到下层空间、与卫生器具同层敷设并接入排水立管的排水方式。
The same floor drainage means that in the building drainage system, the drainage pipes and branch pipes of appliances do not pass through the structural floor of the floor to the lower space, and are laid on the same floor with sanitary appliances and connected to the drainage riser.
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传统异层排水额外占用了下层用户的吊顶空间且排水噪音较大，马桶及其他洁具的位置无法再调整，管道如发生检修情况须在下层空间进行，容易引发纠纷；同层排水可以规避异层排水的所有缺点，但架空层渗水积水不易察觉，架空层内需填充大量材料。不降板同层排水需要设置排水汇集器和特殊的可调式配件才能实现，包括专用排水槽、地漏、后排水马桶和夹壁墙。
The traditional different floor drainage takes up the ceiling space of the lower floor users, and the drainage noise is large. The position of the toilet and other sanitary ware can not be adjusted. If the pipeline is overhauled, it must be carried out in the lower floor space, which is easy to cause disputes. The same floor drainage can avoid all the defects of the different floor drainage, but the water seepage of the overhead floor is not easy to detect, and a lot of materials need to be filled in the overhead floor. The same floor drainage without falling board can only be realized by setting drainage collector and special adjustable accessories, including special drainage trough, floor drain, rear drainage toilet and sandwich wall.
同层排水时建筑面层较厚，结构板降板，降板高度在150~350mm之间。异层排水和不降板同层排水无需结构降板，利于预制楼板合理布置和尺寸标准化。
For the same floor drainage, the building surface is thick, and the height of the structural slab is between 150 ~ 350mm. The different floor drainage and the same floor drainage without falling slab do not need falling slab, which is conducive to the reasonable layout and size standardization of precast floor.