Site surface drainage method
This is a more common method. With the vertical and horizontal slope of the artificial grass for football, the rainwater is discharged outside the site, which can exclude about 80% of the total field rain. This is very accurate and very strict on the design slope value and construction requirements. At present, a large number of artificial turf football venues are constructed, which require careful operation and strict standards in the construction of the grassroots layer, so that the rainwater can be effectively eliminated.
The football field is not purely flat, but the requirements are turtle-shaped, that is, the middle is high and the four sides are low. This is done to facilitate rain and drainage. Just because the stadium area is too large and there is a lawn on it, we can't see it.
2, the base layer drainage method
The basement drainage method has two aspects of drainage. First, the residual water after surface drainage is infiltrated into the ground through the loose base soil, and passes through the blind ditch in the base layer to discharge into the drainage ditch outside the field. On the other hand, it is also possible to isolate the groundwater and maintain the natural moisture content of the surface. This is very important for the natural turf football field. The base layer percolation method is very good, but the engineering material specifications are very strict and the construction operation technology requirements are high. If it is not done well, it will not function as a seepage, and even become a stagnant layer.
The artificial football turf drainage is generally in the form of seepage, and the underground water seepage system is closely combined with the structure of the site, and most of them are in the form of blind ditch (an underground drainage channel). The drainage slope of the ground of the artificial turf is controlled to be 0.3%~0.8%, the slope of the artificial turf site without water seepage function is not more than 0.8%, the slope of the artificial turf site with water seepage function is 0.3%, and the drainage ditch of the outdoor site is generally not Less than 400mm.
