为改进排水方法,美国已申请塑料板排水专利权,这种排水板可用于水平和垂直向排水,不需要开挖和国填基槽,也取消的传统法中的砾、碎石垫层。这种排水板不会堵塞,自重轻,使用方便;但应用时,如果穿越道路、铁路等建筑物,排水板可能承受相当大的压力而遭到破坏。针对上述情况,在排水装置材料与制作方法上作了改进,使之能用于任何地点,即使承受相当大的压力也不毁坏,排水效率高、耐久性好,长期使用也不会堵塞,并且还能起到止 To improve drainage, the United States has patented drainage of plastic sheets, which can be used for horizontal and vertical drainage without the need for excavation and filling of foundations, as well as the removal of gravel and gravel cushions from the traditional method. The drainage board will not be blocked, light weight, easy to use; but when applied, if crossing roads, railways and other buildings, the drainage board may be subjected to considerable pressure and destroyed. In view of the above situation, the drainage device material and manufacturing method has been improved so that it can be used in any location, even under considerable pressure without damage, drainage efficiency, durability, long-term use will not be blocked, and Can play only