Due to the large and flat soccer field and the needs of the competition, the drainage requirements for the soccer field are very important. The stagnation at the football venue will affect the results of the competition and affect the broadcast of television. Long-term accumulation of water will affect the life of the natural turf. The general drainage method is as follows: 1. Surface drainage method This is a commonly used method, and it is also a very important method. Relying on the vertical and horizontal gradients of the football field, the water discharged from the rain will be discharged outside the site. The effect can exclude about 80% of the rainwater on the entire site. Therefore, it is required to design the slope value. And the accuracy of construction accuracy is very strict. At present, the artificial turf football field is heavily constructed. In the construction of the grassroots level, it is necessary to operate meticulously and the standards are strict. Otherwise, the problems caused by the lack of accumulated water can not be solved. See Figure 2.2.1.1. 2. Priming method The primary drainage method drains water in two ways, and the remaining water after surface drainage is penetrated by the loose grassroots soil to the underground, and at the same time passes through the blind ditch in the basic layer and is discharged into the drainage ditch outside the site. On the other hand, it can also isolate groundwater and maintain the natural water content of the ground. This is very important for a natural turf football field. See Figure 2.2.1.2 and Figure 2.2.1.3. Although the grass-roots seepage method is good, it requires strict specifications for the engineering materials, and the construction and operation techniques are also very strict. Otherwise, it will not achieve the effect of seepage and even become a stagnant layer. 3. Forced drainage method The compulsory drainage method is to set a certain amount of water filtration pipes in the grass-roots, and the practice of drainage pipes is shown in Figure 2.2.1.3. It is through the vacuum effect of the pump, the water in the base layer is accelerated into the filter pipe and discharged to the outside. It belongs to the strong drainage system. Constructing a "trinity" drainage system in a group of conditional football fields makes it possible for football venues to be able to evolve the game in heavy rain days. Forced drainage is essential. Related Reading: "Football Site Quality Testing Method" "Maintenance and dirt disposal method of artificial turf football field"
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