The drainage tunnel is designed to collect and discharge storm and sewage (pre-treated) waters. The design is lightweight and can be installed in one or more rows to form a large drainage field. Additionally, plastic perforated wells can be used, which are filled with a layer of expanded clay to increase the degree of purification of effluents.
Advantages
Drainage tunnels and blocks have many advantages, among which are the following:
- The plastic construction is not affected by aggressive chemical compounds, rotting and corrosive effects.
- Due to its light weight, significant transportation and installation costs are not required, it is also worth noting the lack of the need for a large number of earthwork.
- Simple installation is provided by a preliminary calculation of the configuration, volume of products and selection in accordance with the existing conditions.
- Devices differ in capacity and the ability to transport a large number of storm and sewage.
- Free air exchange that does not interfere with the functioning of bacteria.
- High structural strength, which makes it possible to use in areas with a traffic load.
Installation
A large amount of precipitation and the proximity of the aquifer can lead to the destruction of buildings and plant death on the site. Carrying out appropriate measures can protect against the negative effects of excessive moisture. The drainage tunnel provides high-quality drainage of the territory. Installation does not cause any special difficulties and consists of the following steps:
- A trench of a suitable length is digging, into which a layer of sand and gravel is poured.
- Next, fit the required number of blocks.
- In some cases, additional insulation is made with special materials, after which the structure is covered with soil.
Application
Currently, there are no alternative devices that are highly efficient. The drainage tunnel is suitable for use in agriculture and landscaping, and is also used in low-rise and high-rise construction and in road construction. He gained the greatest distribution among the owners of suburban areas as a method of draining the territory.
The need for a closed drainage system arises when the site is in a lowland or in the case of high bogging. It is also recommended to equip it when planning the construction of a house with a basement. According to many experts, the creation of drainage is required on most sites in the middle lane of our country. To increase efficiency, the Graf and Drening drainage tunnels are mounted as part of the drainage system.
What you need to know
A drainage system is being designed simultaneously with the arrangement of a suburban area. In this case, it is necessary to take into account the main factors, including the presence of a basement and an underground garage, the type of soil, the location of natural reservoirs in the district, the average rainfall, and relief.
Drainage of the territory is possible through two methods:
- Depth drainage system. It consists of underground channels and is designed to divert water beyond the boundaries of the site and reduce the amount of groundwater.
- Surface drainage is a point and linear drainage system, collecting melt, rainwater and consisting of modular channels. It allows you to quickly remove precipitation from a large area. The calculation of the number of drainage tunnels is made taking into account differences in height on the site, type of soil, soil filtration coefficient and other parameters.
Features
Independent arrangement of drainage is within the power of any person, due to the fact that he does not require the use of special tools. Ease of use is achieved by spaciousness, simple installation and easy transportation. Infiltration blocks used together with plastic septic tanks also allow fluid to be diverted to a special drainage space. Before you purchase products, you need to calculate the total water load. After joining the structures, a system is obtained that has high efficiency and the ability to form in various volumes and shapes. An extensive range of products allows you to choose the right option for playgrounds, houses and parking lots. The drainage tunnel is equipped with regular places for pipes and special plugs located on both sides of the structure. It should be noted that when used under parking lots, products should be covered with soil, the layer of which is at least 50 cm. When used in pedestrian areas, the minimum layer is within 25 cm.