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Deep drainage makes it
possible for the water content of areas which are designated for new
houses, industry and storage of materials to be considerably reduced in a
short space of time.
 In many
cases it can prevent the need for expensive heightening of the land level
whilst still achieving effective dewatering of the relevant area.
Deep drainage can prevent ground water from becoming polluted by
water-soluble materials released during the storage of industrial waste.
The techniques of dewatering have been used in Western Europe for
many years at the planning stage of extensions to industrial areas,
container terminals, sewage treatment installations and storage basins.
This method has been improved even further by the development of specially
designed trenching machines and materials suitable for different kinds of
soil structures. A drainage
system is installed at a depth of 2.00 m - 8.00 m in the development area
for buildings, industry or depots. The system consists of riser collector pipes and lateral
drainage pipes which are installed before anything else at a depth
suitable to ensure that all further processes can be carried out in dry
soils during pumping. Depending
on the circumstances, and the options for discharging water, the system
can be free/open discharge or can be kept at a certain level.
The drainage system is installed mechanically by means of trenchers
specially developed for this application.
The system can be installed accurately by means of laser depth
control.
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