How to make a drainage system on the site with your own hands? Purpose of the drainage system. The main subspecies of deep drainage

Life in the house is as close to nature as possible. More and more residents of the metropolis are trying to leave the city and acquire their own land and comfortable housing. Native, original and unique house is better to build for yourself. If you, our reader, are among the happy homebuilders, then you also have a question:

how to properly remove excess water from the site?
how to protect the foundation and basement from flooding with groundwater or fallen (melt or storm) water?

For these purposes, the site performs drainage system.

Residents of megacities usually have no idea what a drainage system is and why drainage is needed at all. This is a system of drainage and manholes and drains (pipes), sometimes interconnected pumps, collecting and removing excess moisture from the site - groundwater and precipitation infiltrated into the soil.

The question of what types of drainage will be used on the site should be decided at the design stage. Ideally, hydrogeological surveys are needed. If this is not possible, you need to walk around the area and talk to people - how high and how long the water is in the wells, is the water visible in the pits and pits for poles, are the lawns warming up, how bushes grow.

No less important is the question of where to divert water.

In any case, a drainage scheme is required to perform the work, and even better, a drainage project developed by a specialist. In any case, professional advice is required. The drainage system must be completed before the construction of the house.

Is it necessary to perform drainage on the site?

One of the most difficult questions for a developer with a non-obvious answer.

Necessarily:

at close proximity ground water- above the level of the foundation (and especially less than 1 m from the surface);
when the site is located on a slope or in a lowland;
with a slab or shallow foundation on clay soils;
when swamping the entire territory of the site or part of it;
in the presence of special requirements to the design of the site - it should always be in order, always a perfect lawn, well-groomed expensive plants and no dirt and puddles;
with constant ingress of groundwater into the basement or in-depth ground floor With heating equipment or finished auxiliary premises (pantry, workshop, gym, cinema, etc.);
with clay soils on the site, surface drainage is required to drain storm and melt water otherwise they stagnate. For chernozems and sandy loamy soils, this problem is usually not relevant.

Not necessary:

with episodic (every few years) and short-term rise of groundwater above the foundation level;
with a rare hit a large number melt water to the cellar for vegetables and blanks, where this wetting is not critical;
if the site is not swampy and there are no categorical requirements for appearance plot, you do not faint at the sight of mud after the rain and the plants are not a botanical rarity.

How to understand that drainage is needed?

Inspect the house, site:

if the blind area cracks, cracks in the walls and foundation of the house;
if water gets into the basement;
if there are puddles for a long time after the rain;
if the water in the well is close to the surface.

If such facts take place, drainage is necessary.

What will happen if it is not done?

freezing of the soil saturated with water near the foundation, deformation and gradual destruction of it and, as a result, cracks in the walls and "subsidence" of parts of the house and deviation of the walls from the vertical;
with a slab or shallow foundation on heaving clay soils - in spring, the frozen ground thaws with different speed from the south and north side at home, the foundation experiences uneven loads and deforms, which leads to the formation of cracks in it and the walls;
the appearance of water in the basement and the occurrence of mold;
in case of violation of the waterproofing, the walls may become clogged and the occurrence of fungus and mold.

Types of drainage and methods of its arrangement on the site

By design, drainage is open and closed; at the location of superficial and deep. Deep drainage around the house is almost always performed, drainage of the site - if necessary.

Open and closed drainage

Backfilling trenches with rubble. open drainage is a ditches dug 0.5 to 1 m deep and 0.5 m wide, dug around the site (or a network of ditches if the area is large). Used in wetlands. The trenches are covered with rubble. The walls of the ditches should have a slight bevel (20°-30°). It is impossible to dig ditches of a semicircular shape - in such places waterlogging occurs. Water naturally enters the ditches and flows into the main drainage ditch. This option is best for sloped areas.
Using trays. There is a surface type of drainage using trays with a grate installed on top. Perhaps it would be more correct to call this structure a variety storm sewer. They collect rain water on the surface of the earth, usually installed along roads, paths and blind areas.

The material for the trays is concrete, polymer concrete, reinforced concrete, plastic. Due to the high price, metal trays are occasionally used. Plastic trays can be placed in places where heavy loads are not expected. Concrete and reinforced concrete have high strength, frost resistance, low price, but have a lot of weight, which creates difficulties during installation. The service life of polymer concrete trays is more than 50 years, they are much lighter than concrete ones, they have smooth surface- therefore, they have a higher water flow rate, they are less silted.

Grilles are usually made of cast iron, galvanized steel, copper with an anti-corrosion coating, and occasionally plastic.

With perforated pipes. Drainage closed type is carried out from special pipes (drains) at a considerable depth. This is an expensive construction that requires a lot of earthworks, labor costs and materials. Perforated pipes are laid in ditches to a depth of 0.7-1.5 m or more, covered with crushed stone, soil, covered with sod. Drains are laid with a slight slope towards the drainage well. The water is collected and discharged either to a community sewer (if any) or to a natural body of water.
Superficial and deep. Deep drainage is a closed drainage laid at a considerable depth (usually below the level of the foundation cushion.) It must be used to protect the foundation from groundwater and, if necessary, the site.

Surface drainage - ditches for draining the entire area of the site or grooves from trays to drain storm water. It is mainly used for drainage of the site and drainage of stormwater.

Vertical and point drainage. Vertical drainage - a system of several wells or wells combined into one system. Water is pumped out of them using a pump (or several - from each well). It is quite rare, difficult to maintain.

Point drainage collects runoff from local sources, for example, at the point where water drains from drainage system or at the bottom of the playground in the yard.

How is the installation

Mounting open systems sewerage is not particularly difficult, the installation of closed ones has a lot of nuances and features. But in any case, these works can be done by hand with careful observance of technology. Keep in mind that installation work impossible to do alone - you will need at least 3 people.

Ditch preparation

For stormwater, they dig according to the size of the trays + 30-35 cm in depth. For trenches on the surface of the site - ditches are made to a depth of 0.5 -1 m with a bevel of the walls of 20 ° -30 °. For drainage of a closed type - ditches are dug to a depth of one or more m, with a width of at least 3 pipe diameters. To the conditional depth, you need to add 30 cm - the thickness of the layer of sand and gravel. Wall drainage around the house is deepened by at least 1.2 m and more than the depth of soil freezing. The distance from the walls is 1.2-1.5 m, from the blind area - 0.9-1.2 m.

Surface storm sewer device

Storm drains from the trays are mounted on an anti-heap cushion from a layer of sand 15-20 cm thick and a layer of 10-15 cm fine gravel. Both bedding components are wrapped with geotextile (each separately). Minimum slope: 1-2 mm per linear meter.

The stormwater inlet of point stormwater outlets is necessarily equipped with a wastebasket.

Surface drainage device

The sides of the ditches, in order to avoid receiving storm drains, are made elevated or rounded and covered with turf. The ingress of abundant rainwater into the ditches will lead to their seepage into the ground, so the walls below the humus layer are paved with stone (but) with gaps. It is even better to lay out the walls with special concrete slabs with holes and unclosed mortar bottom joint. The angle between the plates is 90°. Such a ditch is not covered with rubble. Water is discharged either through a ditch or through a drainage well and pipe into the nearest ravine, reservoir, stream.

Deep drainage device

The procedure for creating a closed drainage system:

wide geotextile strips are laid at the bottom of the ditch for wrapping crushed stone and narrow ones for wrapping sand;
sand is poured at the bottom of the ditch with a layer of 10-15 cm and rammed, wrapped in geotextiles;
a layer of crushed stone of a fraction of 16-32 mm with a thickness of 10-15 cm (= drain diameter) is laid, leveled with a rule - a piece of board nailed to a stick. Crushed stone (sprinkling of the pipe) carries out the primary filtration of groundwater. The gravel must be washed. It is piled up, washed with water under pressure for 10-15 minutes and packed in bags. Do not dry! - get dusty! Store no more than a week. Gravel can be used instead of crushed stone;
pipes are laid on top, starting from the collector well, tried on, cut, finally laid. The ends of the pipes are muffled. Drains should be located with a slope of 2 to 10 mm per meter;
the rest of the washed crushed stone is poured to a height of 1 pipe diameter, covered with geotextile;
unwashed crushed stone of a large fraction of 8-40 mm is laid in a layer of 10-20 mm;
fill up the earth.

Well device

The arrangement of a drainage well for a drain is not particularly difficult. It must be waterproof.

The bottom of the well should be 250 mm or more below the pipe outlets. The well pit on the sides is covered with rubble and rammed. Inspection wells are best purchased ready-made. Wells are installed at the pipe connection and at every second pipe bend.

DIY styling

Do-it-yourself laying allows you to save a considerable amount - after all, labor costs make up half the cost of the system. Do not be afraid, carefully follow the technology of work - and you will succeed.

It is not necessary to purchase the most expensive advertised pipes. There are many products that are time-tested or new, but at more affordable prices. It is better to use asbestos-cement or corrugated plastic pipes with large perforations.

It is better to buy materials in hypermarkets or large construction markets. Don't skimp on used materials. In some cases and in non-critical areas, the pipe can be replaced with a "house" made of improvised materials (solid brick, stone).

Installation video

It is better to see once than to read 10 times. Watch our video on the topic - it will help you better understand the technology of work.

How much would such a job cost?

Groundwater drainage work can cost more than the cost of a house. Significantly reduce cost independent execution works. Here are the approximate prices for the work:

Drainage pipe cleaning

The drainage function of the system is reduced due to silting of the pipes. Cleaning is carried out through a system of drainage and manholes.

Mechanical and hydrodynamic method

Drains are cleaned every 3-4 years. There are special pneumatic installations with a device for passing drains and crushing deposits.

The method of hydrodynamic flushing of pipes is even more effective. For this pump equipment connected to the end of the pipe in the well and washed with a compressor supplying air with water and crushing deposits. This method has high efficiency and applied every 10-15 years.

We hope that this article will remove the veil of uncertainty from the drainage device on the site and will be useful to you, our reader, in the interesting and endless business of improving your home and site. Good luck! Share our information with your friends on social networks, invite them to our site.

The best prices for drainage work this month!

Name of service	Unit rev.	Cost, rub
		"SURFACE" (depth - from 70 cm)	"DEEP" (the depth of "non-freezing" of the soil - from 1.5 meters)
Providing a site drainage plan		free of charge (in case of signing a contract)
Site drainage device		from 1 300	from 3 000
Collector well device with pumping station(depth 3 m, diameter 1 m)		from 35 000

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What drainage works to order in order to forget about the flood forever?

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Research and analysis of the site. Drainage works, the price of which for our customers is the most favorable, do not begin without serious research and obtaining initial data for design. To do this, wells are drilled, which helps to determine the level of water in the soil. Only after that, drainage methods will be selected, project documentation will be drawn up, and on its basis the engineer will be able to calculate the estimate drainage works.

The cost of drainage work on the site is the last thing you should pay attention to, otherwise the savings will come out sideways with the first snowmelt. Only experienced specialists will be able to competently design a drainage system depending on the relief, water depth, surface type and install it with strict adherence to technology.

5 benefits of drainage work carried out by our specialists

1. 10 years experience. All this time, the company's specialists have been implementing projects for the drainage of sites and have perfectly studied the design and operation of drainage protection installations, for which they regularly attend partner training programs and courses from manufacturers of materials and equipment.

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Very often, before building a new house or buying a new plot, it is necessary to check whether the premises located on this land will not be too damp. This is especially true for basements and first floors. The fact is that on wet lands with a shallow depth of groundwater, one cannot do without a special drainage system - drainage. Otherwise, the house will have dampness, mold, and other problems associated with nearby waters. We will talk about what drainage is, about the types and design below.

What is drainage? The definition of drainage is a special system of pipes, wells or channels that allows groundwater to be diverted away from the site, house or any building structure. For most of Russia - especially for middle lane Good drainage is essential. And this applies not only to clearly swampy areas. Only a specialist will be able to determine exactly at what level the groundwater occurs, whether and what type of drainage is needed, as well as how best to install it. However, the simplest work on drainage can be done independently - we will tell you how to do this at the end of the article.

Of course, a lot depends on the type of area where your house or cottage - or other structure is located. Possible different variants:

- a house on clay soil (that is, the water-resistant layer is close);
- a house in a lowland;
- a house on sandy soil (far from groundwater);
- a house on a hillside;
- a house in a swampy area or near a river / reservoir.

In each case - its own approach and its own drainage system. In the lowlands, for example, groundwater is always closer, on the slopes - too. But on hills, drainage may also be needed - in particular, to drain rainwater, the excess of which on your site is completely useless.

Before the design of the drainage system, a study of the area is carried out. First of all, the goals for which it is necessary to drain the soil are determined, for which drainage is installed. So, drainage may be needed for agrotechnical purposes - excess moisture harms individual plants, leads to rotting of the roots and death of seedlings. Most often, however, they drain adjoining and adjoining areas in order to protect the foundation and prevent water from creating unpleasant dampness inside the room.

Types of drainage systems

Drainage systems are of several types. First of all, the classification of drainages is based on the installation depth of pipes or other parts of the drainage structure. Thus, systems are superficial and deep. Surface drainage most often consists of channels for the withdrawal of rain and flood water outside the site. This type of system is also needed to maintain paths, roofs and open terraces. Deep drainage is required to deal with excess groundwater, which is discharged through special pipes into a well or outside the drained area.

When should surface drainage be done? Practically in any - and preferably in conjunction with the deep. Surface drainage is of several types:

- point drainage,
- linear drainage,
- combined drainage system.

Drainage lines are usually grooves with small containers to collect excess debris and sand. With the help of such channels, you can remove excess water from a fairly large area - but you need to make sure that the sand traps (garbage containers) do not overflow and the lines do not clog. Point drainage elements are usually made where excess water needs to be drained locally - for example, such drainage systems are provided near drains, at doors, and at terraces. True, most often they are supplemented with linear elements - this way it is easier, faster and more efficient to drain water. Combination different parts, moreover, allows you to optimize the drainage and storm sewer system, make it cheaper and better.

The main subspecies of deep drainage

In addition, the following main types of drainage are distinguished:

- plastic,
- wall-mounted
- circular.

Reservoir drainage helps to divert not only groundwater from the structure, but also small droplets of any other moisture. The fact is that parts of such a system lie directly on the aquifer - such soil, inside which flows underground water, - forming complex structure, which also includes pipes for removing moisture from foundations. The base of the protected structure - that is, the foundation and basement - is reliably isolated from unnecessary dampness. Reservoir drainage is in great demand in the construction of heating networks and chimneys. True, such a drainage option must be planned even before the construction of the house - since the pipes must be laid simultaneously with the foundation.

In the design of wall-type drainages, the main part is a pipe system with a special filtering coating, which is laid on impervious soil (ground that almost does not allow moisture to pass even lower). Of course, the protected building must stand on this type of land - if the waterproof soil is deep, then wall drainage is not done.

Whether a ring-type drainage is needed can also be decided when the house or cottage is already completely ready and the owners suddenly realized that the room is too damp. The advantages of such a system are that it is placed at a relative distance from the walls. Ring drainage lowers the level of groundwater within its perimeter - in this its action is similar to the reservoir type. Drains (elements of the system) at the same time stand on a slope.

In some cases, deep drainage can be abandoned - but this requires an assessment of a specialist. However, if the soil is sandy, the house is on a hill, then groundwater is unlikely to be located close to the surface. The main recommendations for abandoning a deep drainage system are that water should be one and a half meters below ground level. In this case, the costs turn out to be incomparable with the benefits - the drainage depth on the site must be very large, and the effect of it is practically not noticeable.

The types of drainage systems differ in the main design features. Everything is simple here - drainage happens:

- horizontal,
- vertical,
- combined.

The first one is the most popular and easiest - for example, surface drainage just refers to horizontal systems. Vertical structures most often include several wells, the water from which is pumped out by pumps. You cannot create such a system yourself, you need special knowledge, so vertical drainage is a rare occurrence that requires the intervention of a specialist and large financial investments. The combined system includes elements of horizontal and vertical drainage - both wells and pipes. It is used mainly in difficult conditions where it is impossible to get by with simpler drainage. Installing a combined drainage is also not a cheap pleasure.

Principles of operation and arrangement of drainage pipes

The principle of operation of the drainage is such that it cannot do without a slight slope - and in Russia, for example, the sites on which houses are built are too flat for a natural outflow of water. In this case, when laying pipes, it is necessary to organize a small artificial drainage slope - but do not overdo it so as not to accidentally increase the amount of earthwork. For every type of soil minimum slope your drainage:

for clay soils - 0.02,
for sandy soil – 0,03.

With a lower value, water, of course, will also flow, but this will increase the likelihood of clogging pipes, silting them with soil particles - and you will not be of any use from a clogged system.

The optimal depth for laying drainage pipes also depends on the type of soil - and, of course, on the level of groundwater: the lower you want to lower their level, the deeper you need to place the elements of the drainage system.

What are drainage pipes? Usually these are corrugated pipes made of polyvinyl chloride. Inside they are smooth, with holes from one and a half to five millimeters, thanks to which water gets inside. Most often, pipes with an internal diameter of 100 mm are taken for engineering structures and drainage of sites. Their features allow you to safely lay drainage at a depth of five meters, without fear of failure and destruction. In addition, they are quite light, they are easy to deliver to the installation site and quite easy to handle them yourself. However, it is better to calculate the diameter of the pipes, taking into account the characteristics of a particular section, namely:

the quantity (volume) of groundwater flowing through its territory;
plot area;
soil type;
location of the site (lowland, hill, etc.).

Do-it-yourself site drainage

However, knowing the simplest rules and how drainage works, you can make a simple drainage system. own site with your own hands. First of all, you will need a plan for this, according to which drainage channels will be laid. You need to sketch how the water flows through the site, and lay a grid along its path. It is advisable to leave the trenches open until the next rain, so that you can see if the slope is sufficient - if puddles appear, the ditches go wrong. Then a special material - geotextiles - is laid in the dug gutters, and drainage pipes are already placed on it. They all need to be brought into one drainage well. The laid pipes must be covered with geotextile (otherwise the soil will fill up inside), and then covered with rubble - but not to the very top of the trench. The top of the remaining holes - thirty centimeters - must be covered with ordinary soil.

That is, by saying plain language, you need:

Regardless of whether professional drainage is needed, or home-made enough, it is important that the system performs the main purpose of drainage well: there should be no excess dampness after installation. If the site is still damp, if the mold stubbornly does not disappear in the house, and moisture is felt in the basement and on the first floor, it means that mistakes have been made somewhere, and the drainage is not fused with the functions assigned to it. Perhaps a different type of system is needed, or the slope is insufficient, or the pipes are simply clogged - in any case, it is worth checking all the elements.

Incorrectly installed or non-working drainage will not be able to help in the fight against excess moisture. And it threatens with such problems as the death or poor growth of plants (including trees and lawns), deep freezing of the soil (which negatively affects both plants and houses and structures) and subsidence of the foundation.

After selecting a site for building a new house inevitably raises the question of arranging this territory. It is great if the house is surrounded by trees, because greenery contributes to the purity of the air. It's just great if there is at least a small body of water nearby: a lake, a pond or a river. But there is another point that needs the closest attention. A lot of problems in the process of construction and further operation of the building can create groundwater. The drainage system is designed to solve this problem.

About the need drainage works can be judged already by the vegetation present on the site. Some shrubs, trees, and grasses do not grow well in overly wet soil. This includes many fruit trees: apple, plum, cherry. Due to the abundance of moisture, mold forms on their trunks, the branches begin to dry out, and the bark peels off. There are also moisture-loving trees. Examples are: bird cherry, poplar, birch. In waterlogged areas, many herbs quickly gain strength.

building construction on a site abounding in groundwater, it promises problems with the integrity of the basement and the foundation of the new building. It's not a secret for anyone that the impact of groundwater can result in breaks in the masonry of walls, as well as local shifts in the foundation. The basement in general can quickly become damp and become unsuitable for any use. AT winter period the earth freezes to a depth of about 1.2-1.8 meters. Due to waterlogging, a significant increase in its volume occurs, and this is the cause of swelling of the soil and subsequent deformation of that part of the foundation that is underground.

Groundwater, which includes various dissolved substances, may well react with the foundation and masonry of the building. Because of this the foundation starts to crumble, which will inevitably violate the integrity bearing walls. In addition, in such a situation, a favorable environment is created for the appearance of mold and fungus in the basement. As a result, window and door openings will undergo deformation, and the house will become cold. In order to avoid all these "horrors", it is necessary at the construction stage to ensure the creation of a reliable foundation, which provides for the presence of a drainage system.

This system is a whole engineering and technical structure, which is necessary for the collection and subsequent removal of groundwater and infiltrated water. Today, drainage is understood not only as an artificial lowering of the groundwater level and the removal of excess moisture, but also aeration of the soil, as well as its heating, which must be carried out in the spring. Sometimes drainage can be supplemented with waterproofing. In saving the bottom of the house good help provide ventilation hoods installed in the basement. Moisture will escape through them, evaporating naturally.

Even before carrying out drainage work, the level of groundwater is determined. It is determined relative to the basement and foundation. To do this, topographers, geodesists and other specialists are invited. At this stage, you need to topographic survey throughout the territory occupied construction site, as well as to develop a project for a future groundwater drainage system. The result of these works is a site plan. It must indicate the height of the relief. Hydrogeologists will then be able to tell exactly where the groundwater flows and make specific recommendations regarding drainage arrangements. For these purposes, specialists will only have to drill a few wells. The diameter of the well can reach 80 millimeters, and the depth - up to five meters. It is worth noting here that when the groundwater level is less than 2.5 meters, the construction of a drainage system is mandatory.

The water that is collected by the drainage system is discharged into a water intake well, collector or natural water intake. Ponds, natural reservoirs, swamps and even roadside ditches are suitable for the role of the latter. To drain water, perforated drainage pipes (they are also called drains), channels with perforated walls, roll materials. Drains should be laid in a trench, the width of which is not less than 3 diameters of the pipe itself. Next, gravel should be poured into the trench. Fertile soil is used to fill the remaining space.

The structure includes a system of pipes, which are the main elements of the drainage system. For their production, composite and polymeric materials are used, which have certain filtering properties. Such pipes pass only water. You don't have to worry about getting into the soil. Due to the use of corrugated pipes, the integrity of the system will not be violated even when the soil freezes and deforms.

There are holes in the walls of the pipe, the diameter of which is from 1.5 to 5 millimeters. Such devices are located almost along the entire circumference of the pipe. PVC pipes are laid at a depth of up to ten meters. Service life of pipes made of polymer material may be over 50 years. Most often, pipes with a diameter of about 100 mm are used. In some cases, special filters are installed to protect them from clogging with sand, soil, silt. The drain system is mounted using various connecting materials, such as tees, adapters, couplings.

Before laying the drain, the bottom of the trench must be tamped and leveled. To do this, a layer of dry mixture of crushed limestone and coarse sand is laid with a thickness of 50 mm. Next is the laying of drainage pipes. In this case, the minimum slope should be equal to at least 0.002 for clay soils and not less than 0.003 for sandy soils. The best option is a slope of the order of 0.005-0.01 (five to ten millimeters per linear meter). This slope provides a normal flow of water. In order for water to freely enter the pipes, they must be layered with permeable sprinkling.

Closest to the drain should be gravel (small fractions) or washed crushed stone (with a grain size of not more than 16 mm). After that, a geotextile fabric is laid, which separates the layer of crushed stone from sand (with grains from 0.5 to 10 mm). The permeability of the soil affects the thickness of the backfill. As a result, the thickness of the sprinkling is approximately 100-300 millimeters. A layer of fertile soil, which was taken out earlier, is laid on top.

Complete drainage system must be equipped with special wells. Rotary wells are installed at the turn of the drain or at the convergence of several channels. They are designed to control the operation of the system and to clean the drains. Thanks to the rotary well, you can simultaneously get good access to both the outlet and the inlet sections of the drainage pipes. Absorption wells (with a diameter of about 1.5 meters) must be installed in the drained area if there is no possibility of withdrawing groundwater to the place of lowering. Typically, the depth of such a well does not exceed 2 m. The construction of water intake wells is necessary if a reservoir or an artificially created container for discharging water is located too far from the site, and due to a sufficiently high GWL, it is not possible to use an absorption well.

The most modern wells are made of fiberglass or plastic. Due to the use of these materials, the duration is significantly reduced construction works. The advantages of such wells are relatively low weight, lightness, the presence of all the required outlets, as well as high installation speed. The device of the drainage system using modern technologies is one of the milestonesbuilding construction, the right approach to which will save new house from unexpected destruction, and the owner of the house - from spending on premature overhaul.

For guard suburban area from flooding it is necessary to carry out drainage work. The cost of services of professional companies can be from 10 thousand rubles or more. At the same time, it is important that all activities are carried out with high quality.

Drainage works - a set of measures aimed at diverting water from the site and building a system that ensures the timely outflow of fluid from the site without human intervention. The composition of such systems includes channels and wells.

There are two technologies for installing structures, the choice of which determines the prices for drainage work:

Open way. Drainage channels are constructed by digging shallow trenches. The walls form concrete structures U-shaped profile, from above are covered with a metal lattice.
private method. Drainage pipes, characterized by the presence of holes in the walls, are buried underground, a sand cushion is laid on top and everything is covered with a layer of soil.

In both cases, melt or storm water is collected in channels, then removed from the site due to the presence of a slope in the trenches. An important component is the wells, which serve to collect, remove liquid and repair, maintain the system.

Types of wells

The choice of the required type of well depends on several factors: the presence of a natural reservoir nearby, the characteristics of the soils that make up the site, the volume of melt and storm water, and the required reliability of the system.

The final cost of drainage works on the well depends on the type of water collection well. garden plot. There are 4 designs in total:

the collector type is an indispensable element, it serves to pre-collect the liquid and then redirect it to the wastewater reservoir;
the rotary variety is installed in the nodes of the pipeline system, turns, serves to clean drainage pipes from silt and pollutants;
the inspection well has dimensions that allow a person to be inside, is designed to control the system;
absorber well - has a depth of more than two meters and is installed in areas where it is impossible to drain water.

The last three varieties presented act as additional elements. Their main task is to optimize the work drainage device. The price with their introduction can increase significantly.

Where is the system installed?

Drainage works are necessary for areas subject to visible flooding due to rainfall, as well as snowmelt. The creation of such structures is necessary if the basement:

They are located in the zone of capillary moisture.
The upper limit of groundwater is located at a distance of less than 50 cm from the floor.
Equipped in buildings with a shallow foundation.

Professional companies should carry out the drainage device. The price per m.p. of such services should not worry you. Trying to cope with the task on your own, you can violate water balance site, lead to flooding of neighboring and its own.

No. p / p	Name of works	unit of measurement	price, rub. economy/elite
Drainage
1.		—	—
2.	Arrangement surface drainage, depth up to 1 m	running meter	1000/1200
3.	Arrangement of deep drainage, depth 1-1.5 m	running meter	1500/2000
4.		thing	39900
ring drainage
1.	Drainage system design	—	—
2.	Arrangement of ring drainage of the foundation, depth up to 1 m	running meter	2400/3200
3.	Arrangement of the ring drainage of the foundation, depth up to 2 m	running meter	3850/4800
4.	Arrangement of ring drainage of the foundation, depth up to 2.5 m	running meter	4950/7100
5.	collector device. well 3 m deep, d 1 m	thing	40000
Foundation wall drainage
1.	Drainage system design	—	—
2.	Arrangement of wall drainage of the foundation, depth up to 1 m	running meter	2750/3850
3.	Arrangement of wall drainage of the foundation, depth up to 2 m	running meter	4300/7150
4.	Arrangement of wall drainage of the foundation, depth up to 2.5 m	running meter	6100/9900
5.	collector device. well 3 m deep, d 1 m	thing	40000
Foundation waterproofing
1.	Earthworks, if necessary	m3	800
2.	Coating and gluing works, 2 layers	sq.m.	2000
3.	Insulation of the foundation with expanded polystyrene plates	sq.m.	700
4.	Geomembrane protection of foundation waterproofing	sq.m.	400
Storm sewer
1.	Arrangement of storm sewers of shallow occurrence, up to 1 m, storm water inlets - up to 15 pieces	running meter	1200
2.	Arrangement of storm sewers of shallow occurrence, up to 1 m, storm water inlets - more than 15 pieces	running meter	3000
3.	Arrangement of storm sewers to a depth of 1.5-1.6 m (freezing depth)	running meter	3000
4.	Installing an additional storm water inlet	thing	2600