Introduction build massive drain 
 Massive drain construction used welding or fastening means to connect, can drain a closed whole, the role of the best anti-thorn. In order to increase compression and plastic grille and are generally used with geotextile to form a complete layer overhead, such a benefit for the overall drainage. A disadvantage is due to bump up support, will inevitably be pressed into the casing or the cultivation of soil to support the site without bump, bump, or the blockage of drainage destruction, poor water situation will occur. However, the damage does not occur as long as the drain, water in the plastic plate blocked, it would not damage the waterproof layer, can still ensure that the role of waterproofing and drainage. As a result of sheet making, the construction speed, easy to lay, the overall low cost, is the most widely used drain. 

 Build massive drain applications 
 Uses: Widely used in green roofs, green roof underground garage, golf course, golf course turf drainage, and water in a large number of pillars inside. Each buckle connected to each other between the paved drainage board covered with a layer of geotextile fabric, creating a combination of drainage board. Floor model color quality material (g / m) Thickness (mm) compressive strength (kpa) color filter layer of geotextile material pore diameter (mm) Runoff rate tensile strength (N) mass (g / ㎡) Drainage Board Specifications ( mm) H20 (a) black polyethylene (PE) black / white. 

 Build massive drain characteristics 
 Good drainage system for the construction of the construction cycle and the structures of normal use and life has an important role in preventing large wind mess drain massive impact on the quality of the laying of the drainage board, drainage board can block the formation of a water seepage, water and drainage function of the system. Block the use of geotextile overlap above the drainage board, drainage board sheet, surrounded by massive left blind ditch drainage board, sheet drain, groundwater come up. Elevated above the floor in the basic block drain, sheet drainage board, which is first before doing the floor drain plate-like layer of drainage, sheet drain.