Build Daily

Engineering Systems

August 12, 2017 18:07

drainage device - do site clean and dry

Why do I need drainage?

Drainage need for natural or artificial diversion of water from the surface area and / or groundwater.Implemented by the whole range of activities with the help of special system of pipes, channels, wells and others.

Laying drainage is used to maximize the protection of the base of the building, the impossibility of penetration of water into the structure itself, reduce the water pressure to the design.In addition, the system is necessary to prevent rotting of the roots of green space, maintenance of paths and grounds area dry and remove excess moisture around the perimeter of the land allotment.

drainage Arrangement can be done in several ways: closed method, open and Sediment.To understand the distinctive features, we consider each of them separately.

drainage Laying - a variety of methods

Indoor method involves laying pipes in a special pre-prepared trench and then outputting the collected water into the reservoir.For this dig a ditch depth of 80-145 cm and a width of about 40 cm, with optional gradient towards the drain or the well in the direction of the natural drainage.

At the bottom is filled with GPS (gravel-sand mixture), stacked on top of the drainage pipe, and it all again is filled with a mixture of gravel and sand.To make the whole design aesthetic appearance need to pour the ground and put the turf.

Outdoor drainage installation - this is the usual system of open drainage ditches dug by the entire perimeter of the land plot and .The depth of these channels must not exceed 70 cm, width 50 cm, walls slant approximately 30˚.A prerequisite for the device of the system is its output into the gutter.

This type of removal of excess moisture is most effective in areas that are located on the slopes.The disadvantages of this system include the unpresentable appearance and rapid clogging of drainage channels and overgrown.

Loose-fill drainage design is appropriate in small areas where the use of the area under the open trench is ineffective. For arrangement of the system is necessary to dig a trench extending through the sloped section into the reservoir, pour into it bottles or broken bricks, gravel on top and close it all the layer of turf.Such a device is not available the system for cleaning and clog and silts up quickly enough, resulting in the inability to exercise its functions.

To protect the foundation of the construction of the groundwater used:

  • near-wall drainage system - the presence in the building basement or ground floor;
  • circular drainage of the foundation - in the absence of these facilities.

Proper installation of drainage

Before exercising the construction of drainage, install GWL (ground water level).For these purposes are invited surveyors, surveyors or engineers hydrotechnologies-who, after all the necessary set of measures will make GWL layout and will paint all of the recommendations on the tab of the drainage system.

If you want to save on the services of specialists, you can ask the neighbors for a long time living in these places, but then upon the occurrence of an unpleasant situation will have to blame only on themselves.

for drawing up the plan of ground works and become familiar with the connection channel principle, it is desirable to duplicate the entire system on the ground in the order in which it will be in the ground.

After that dug trench system, the bottom of which is covered with SBS at a thickness of 5 cm. On top of this cushion fit drains.For the good functioning of the system is necessary to fit a pipe sloped 5-10 mm per running meter of construction.

After laying the pipes must be washed sprinkle gravel on top and lay geotextile fabric.This insulating layer is placed krupnofraktsionny sand.The whole structure is filled with the previously excavated soil and draped turf.The depth of drainage bedding determines the location of the confining layer.But

drainage installation does not mean that this system will work reliably for many years.Its work must be controlled with turning (observation) wells.And all excess moisture collected by the system, is given in a single water inlet well.It should be placed at the lowest point of land.The collected water from this well can be used for irrigation or discharged into drains.

can also arrange absorption well, with a depth of at least 3 m and the bottom of a special device consisting of layers filled with sand and gravel.The washing of the entire system should be carried out every 3-5 years.This will keep it in an efficient condition for a long time.

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