What is a drainage tunnel for?

The drainage tunnel is designed for collection and disposal of stormwater and sewage (pre-treated) waters. The construction is small in weight and can be installed in one or several rows to form a large drainage field space. In addition, plastic perforated wells can be used, which are filled with a layer of expanded clay to increase the degree of effluent purification.

Advantages

Drainage tunnels and blocks have many advantages, among which it is worth noting the following:

• The plastic construction is not affected by chemical aggressive compounds, rotting and corrosive phenomena.
• Due to the low weight, no significant transportation and installation costs are required, and it is also worth noting that there is no need for a large number of excavations.
• Simple installation is provided by preliminary calculation of the configuration, volume of products and selection in accordance with the available conditions.
• Devices differ in the capacity and the possibility of transporting a large number of storm and sewage drains.
• Free air exchange, which does not interfere with the life of bacteria.
• High strength of the structure, which makes it possible to use in areas with transport load.

Installation

A large amount of precipitation and the proximity of the aquifer can lead to the destruction of buildings and the death of plants on the site. Conducting appropriate measures can protect against the negative influence of excessive amounts of moisture. The drainage tunnel provides a high-quality drainage of the territory. Installation does not cause any special difficulties and consists of the following stages:

• A trench of suitable length is digging into which a layer of sand and rubble is poured.
• Next, the required number of blocks is stacked.
• In some cases additional insulation is made with special materials, after which the structure is filled 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 buildings and in the construction of roads. The most widespread he acquired among the owners of suburban areas as a method of draining the territory.

The need for a closed drainage system occurs when the site is in the lowland or in the case of high waterlogging. It is also recommended that it be arranged when planning the construction of a house with a basement floor. According to many experts, most sites in the middle zone of our country require the creation of drainage. To increase efficiency, Graf and Drening drainage tunnels are installed as part of a sewerage system.

What you need to know

The drainage system is designed simultaneously with the development of the 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 finding of natural reservoirs in the district, the average amount of precipitation, and the relief.

Dehumidification of the territory is possible through two methods:

• Deep 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 that collects thawed, rainwater and consists of modular canals. It allows you to quickly remove atmospheric precipitation from a large area. Calculation of the number of drainage tunnels is made taking into account the height differences on the site, soil type, soil filtration coefficient and other parameters.

Features

Self-improvement of drainage is possible for any person, due to the fact that it does not require the use of special tools. The ease of use is achieved by spaciousness, simple installation and easy transportation. Infiltration blocks, used together with plastic septic tanks, also allow the liquid to be drained to a special drainage space. Before you buy a product, you need to calculate the total water load. After the structures are joined, 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 pipe sites and special plugs located on both sides of the structure. It should be noted that when used under parking, products must be filled with soil, the layer of which is at least 50 cm. When used in pedestrian areas, the minimum layer is within 25 cm.