Drainage trays for storm sewers. Drainage trays with gratings. Storm drainage elements

The Standardpark company is a large manufacturer of surface drainage systems. The drainage tray is one of the key elements of the linear drainage system, the purpose of which is to collect and drain surface water. The top can be covered drainage grates and reinforced with steel plates. The grate protects the channel from clogging and ensures the safe movement of vehicles and pedestrians. U-shaped metal linings protect the sides of the gutter and extend their service life.

Depending on the magnitude of the withstand load on the surface, drainage trays belong to the following classes according to EN1433: A15 (up to 1.5 tons), B125 (up to 12.5 tons), C250 (up to 25 tons), D400 (up to 40 tons), F600 (up to 60 tons), E900 (up to 90 tons).

Varieties

In assortment different types high-quality channels for drainage. The classifier can be:

1) the width of the hydraulic section, which determines the productivity of the channel: from dn 100 (100 mm) to dn 500 (500 mm);

2) tray material:

  • fiber-reinforced concrete (glass fiber reinforced concrete) – generally accepted a budget option solving the problem of water disposal;
  • polymer concrete: increased strength, reliability;
  • plastic: ease of transportation and installation.

3) class - determines the installation location of the product depending on the use of the territory, the level of load on the surface, the activity and type of traffic, and the amount of wastewater discharged.

  • Basic– installed in places with low passenger traffic, near private buildings, in pedestrian areas, etc.;
  • Drive– drainage trays with gratings (type of fastening – bolted) and reinforcing linings with embedded anchor. Designed for city streets, gas stations, underground and surface parking lots, areas with the ability to withstand loads of up to 40 tons;
  • Max– reinforced series channels with cast iron gratings and reinforcing linings that can withstand weights of up to 90 tons. Installed at industrial facilities, airports, highways, etc.

4) the presence of an internal slope:

  • with internal slope;
  • standard, without internal slope.

5) type of further diversion:

What will help you choose a drainage tray and related products

7 rules for installing drainage gutters with different capacities


Rule 1– select a tray according to the throughput capacity, based on the average monthly precipitation in your area, increased by 25%;

Rule 2– based on the location of the channel, select best option its design and the material from which it is made. Of course, the curb tray is not suitable for installation on airfields due to its strength characteristics. At the same time, a gutter adapted for heavy loads is not suitable for the installation of storm drainage systems in private farms, based on economic calculations);

Rule 3– permissible slope of a linear meter of the structure – 10 millimeters;

Rule 4– the tray is mounted on a minimum 10-centimeter sand and gravel bedding, or on a 10-centimeter crushed stone base. Such solutions will minimize destructive influence on the structure of glaciated soils due to heaving deformation;

Rule 5– it is recommended to install gratings made of of stainless steel, since their weight is much less than their cast iron counterpart, which simplifies the installation process. In addition, such trays are more durable than modules made of gray and ductile iron;

Rule 6– the only protection of your channel from silting is a sand trap, the installation of which is recommended by specialists;

Rule 7– to fix the grid on the tray, it is recommended to use a mechanism with a screw lock.

Video of installation of surface drainage

High-quality drainage system for all concrete objects (building foundations, road surfaces, concrete plates etc.) allows you to ensure the durability and strength of the structure from which water is drawn. As a result, the design does not lose its strength under possible negative impact moisture. To create a sewerage system, storm gutters are widely used, which have the shape of an elongated gutter and are covered with a lattice lid on top. This design allows you to install a sewer or rain gutter without losing the evenness of the road surface.

Important: Similar trays for storm sewer are laid taking into account the terrain, and the direction of water drainage is towards a private or central sewerage system.

In the manufacture of storm drainage trays, the most various materials from cast iron to polymer plastic. But at the same time, all products have standard design and comply with established standards EN 1433. In the range of offered and manufactured products you can find the following standard design of trays:

  • Storm drain tray, made in the form of a simple long U-shaped or round gutter without a lid. Such a product is installed without additional reinforcement in a pre-prepared trench with access to the central water collection point.
  • Storm drain made in the form of a standard elongated gutter, but with a reliable lattice cover along the entire length of the product. The grille prevents various types of debris from entering the sewer drain and prevents blockages in the drainage system.
  • Slotted trays for storm drainage. This type of design looks like a long gutter with a slot for water to flow into it.
  • L-shaped storm drainage trays. These products look like slotted ones, only instead of a central hole in the tray they have a special protrusion in their upper part, made in the shape of the letter G. Such products are suitable for installation both in domestic and in more complex industrial conditions (on highways, highways , runways, etc.).

As for the methods of manufacturing storm drainage trays, they completely depend on the specific material from which the products will be made. Thus, in the case of using plastic polymers with additives, the extrusion method is used (extrusion under high pressure and at hot temperatures). If concrete or metals (cast iron, steel) are used, then the casting method is used.

Types of sewer drains


  • Cast iron products for water drainage;
  • Concrete trays for storm drainage;
  • Plastic structures.

Let's take a closer look at each type.

Cast iron


  • ISO 185 - with inclusion of lamellar graphite grain;
  • EN1563 - metal with the addition of spherical graphite grains.

Important: in production, metal is used not only for the pallet itself, but also for the manufacture of the uppermost grill. The finished product is coated with a layer of hot zinc to prevent metal corrosion during operation.

Such a powerful and durable product, thanks to its enhanced tensile and compressive resistance, is used only in industrial and complex facilities such as airports, long highways and runways.

At the same time, cast iron rain gutters are quite large. Thus, the maximum length of one gutter can be 50 cm, and its width - 20 cm.

Concrete trays


Popular products for use within the city. Many of us often observe the operation of the city drainage system during a summer rainstorm. The production of concrete sewer storm drains is carried out using special polymer additives or reinforcing glass fiber in concrete mixture. Thus, ready product is more durable than standard reinforced concrete products.

Concrete storm drainage trays are produced using the vibration casting method, that is, a mold with reinforced concrete reinforced but still soft mixture is immersed on a vibrating table to greater shrinkage composition. This allows you to obtain greater density, and hence the strength of the finished product.

Concrete storm drainage trays can be used both in frequent housing construction and in the construction of complex industrial or urban facilities.

The parameters of concrete trays vary within the following limits:

  • The length of the finished extended gutter is 500-4000 mm;
  • The width and height of the finished storm drain can be from 140x150 mm to 430x880 mm.

Plastic gutters for storm drainage


Plastic rain trays are a convenient product for use in both home construction and improvement sewer system, and for laying near the railway track.

To produce such storm drainage trays, polypropylene with high-quality mineral additives is used. In combination with the extrusion production method, it is possible to achieve high strength of the finished gutters. Plastic trays for storm drainage and for drainage of ground surface water have the following advantages:

  • Inertness to most chemically aggressive substances;
  • High resistance to mechanical damage;
  • Resistance to increased loads. Average plastic trays-storm drains can withstand loads of up to 50-60 t/m2.
  • At the same time, plastic trays for storm drainage and drainage surface water can be used in wide range temperatures from -50 to +120 degrees Celsius.

The parameters of plastic gutters are mainly as follows:

  • Length - 1 meter;
  • Width - 0.14-0.5 meters;
  • Height - 0.06-0.79 meters;
  • The approximate diameter of the round gutter is 10 cm.

Rules for installing water drainage trays


In order to properly install storm drainage trays at any facility, you must adhere to clear rules. Otherwise, the water drainage system will not have the desired effect and will lead, at a minimum, to blockages, and at maximum to waterlogging of the area or damage to the concrete base of buildings, paths, etc.

So, it is important to consider and follow one important point- when installing storm drainage trays, it is worth remembering that the soil tends to freeze to a depth of 1-1.2 meters in the cold season. In addition, the same soil is prone to deformation in the form of heaving in the warm season. Thus, the tray system for draining water from the site is naturally pushed out of the ground.

Therefore, select and install storm drainage trays according to the following principles:

  • Bandwidth the product you choose should be calculated using the formula = average monthly precipitation multiplied by 25%. Thus, it will be possible to choose the right drainage tray for a specific area.
  • The material from which the gutter will be made must be appropriate for your facility. It is unlikely that a powerful cast iron tray will become the right decision For household use in the garden or at the dacha.
  • When laying storm drainage trays, maintain a slope towards the sewer system at the rate of 1 cm per meter of product.
  • For quality system water drainage must be used and good substrate under the gutters. It is better to use a sand and gravel bed 10 cm thick, or at least a crushed stone bed of the same thickness.
  • You can choose lighter grates for domestic use on storm drain trays. Galvanized steel is suitable. In addition, it is better to fix all the grilles using special locking connections.
  • It is also important to arrange and sand collection system in a gutter drainage system. This will prevent siltation and contamination of communications.

How to properly install a storm drainage system?


  • First of all, the location of the water drainage system to the sewer tank is planned. To do this, you can use simple pegs and twine.
  • After this, it is worth finding out the average amount of precipitation per month. This can be done by requesting meteorological data from the hydrometeorological center service in your region.
  • According to the data obtained, the recommended throughput diameter of the storm drain tray is selected.
  • To form a trench for laying, you need to remove soil in a volume equal to the parameters of the gutters plus 30-40 cm. It is important that the depth of the ditch is 10 cm greater than the height of the gutter.
  • A layer of sand and gravel cushion or crushed stone is poured into the formed trench and compacted well.

Important: the top edge of the mounted tray must be 5 mm below the ground (path) level. This will allow you to smoothly lay the upper grid of the system and ensure high-quality drainage of water towards the central collector.

For greater reliability, central drainage systems can be fixed concrete mortar in a ditch.

Important: complex concrete trays are best used for central systems water drainage. And on local area(at the foundation) high-quality polymer gutters are suitable.

Storm drainage is designed to drain rain and melt water from the house itself, as well as the garage, paths and hard-surfaced areas. We will tell you in this article what type of sewer system to prefer, what functional elements to make it from, and how to independently plan and install such a system.

Storm drainage is needed to drain rain and melt water from the foundation of a house, outbuildings and yard. The largest catchment area - the roof - should be equipped along the perimeter with gutters and drainpipes, from which water flows into the storm sewer - a drainage system, which is a network of channels with elements of the system's functioning.

Type of storm drain

Depending on the type of channel installation, storm water can be:

  • linear;
  • point;
  • mixed type.

Linear consists of surface gutters placed along the paths and covered with a decorative grille. Gutters can be made independently from concrete, or they can also be assembled from purchased products - steel, concrete or plastic, lined up with sealed joints. The branching of gutters can be significant, collecting in separate branches from buildings and paths into a common collector.

Point sewer means a single receiver from each drainpipe, covered with a grate, after which water enters the pipeline underground sewer. Pipes from individual point water intakes are also collected into one main.

The mixed type is used if, along with the linear network, there is a need to make separate point water intakes located away from open gutters.

Storm drainage elements

The composition of the storm drain network is determined by whether you intend to use rainwater (for example, for irrigation), treat it or discharge it into common system drainage without unnecessary manipulations.

The system may include the following elements:

  1. Open trays (linear part).
  2. Storm water inlets (point part).
  3. Door trays (can be made in the form of a point rain inlet).
  4. Sand traps.
  5. Inspection well.
  6. Collectors.
  7. Pipeline of the closed part of the sewerage system.
  8. Sewage hatches.

Purchased linear sewerage trays and rainwater inlets are easy to install, have a stable geometry, and are compatible with other elements. The cost and resource depend on the material, correct installation, and climate. In private houses, trays are installed in classes A (pedestrian zone) and B (vehicle zone) in terms of load. Choose the right length to minimize the number of joints.

Plastic tray with grid

Trays and rainwater inlets are covered with gratings for aesthetic reasons, for safety and as a coarse filter from large debris. Grates can be cast iron, plastic or steel.

Sometimes water is carried away from the drainpipe through an open concrete gutter

Door trays have a container for collecting water, which is not discharged anywhere. If there is a canopy installed above the door and there is little water, then this device is convenient. If there is no canopy or slope towards the storm gutters, it is better to install a rain inlet.

Sand traps are used to catch sand, soil, grass and other debris that enters the storm drain. Without these devices, the pipes will quickly become overgrown, and you will have to clean them out. Products are made from plastic, steel or concrete and their load class must correspond to the trays.

An inspection (inspection) well is required to monitor the condition and, if necessary, clean the channels. It is installed in places that are stressed from the point of view of hydrodynamics: connecting the side hoses, sharp turns, on particularly long straight sections (35-70 m depending on the diameter according to SNiP) - where clogging is more likely. The device is a tank or shell covered with a lid.

Inspection well - installation

Drop well - when the depth of the pipeline changes

Homemade concrete well

Storage collectors are a purchased or home-made tank, if necessary with additional system filtration or, if the storm sewer is connected to domestic wastewater, a biopurification system. After the collector, wastewater can be used (irrigation, household needs), discharged to own pond, the nearest body of water or public drainage system (permit required).

Drainage pipes with holes are collected excess moisture from the soil and discharged into the storm drain, if the site does not have a separate drainage system.

Pipes for distribution can be made of PVC or HDPE, completely smooth or two-layer, with an outer corrugated part. Cast iron and concrete pipelines They are now almost never used for these purposes. Pipe class - for external sewerage. We will talk about calculating the diameter of pipes below.

System materials must be selected taking into account strength, inertness to corrosion, resistance to mechanical damage and temperature changes, ease of installation, and service life.

Before carrying out work, it is necessary to draw the future network, determine the installation locations of its elements, and make a list and estimate of upcoming purchases.

The circuit is developed starting from the drain points and to the collector or drainage well. An open and closed part routes, network differences in laying depth, locations for installing sand traps and wells are indicated. The diameters and lengths of pipes, the number of bends, connecting elements are determined, and the scope of excavation and installation work is outlined.

1 - garage; 2 - inspection well; 3 — drainage tray with grate; 4 - house; 5 - rain inlet; 6 — door tray; 7 - sand collector; 8 — HDPE pipes; 9 - drainage pipes with perforation; 10 - container for collecting and purifying rainwater

The scheme may include additional elements: plugs, siphons, check valves(collector piping).

Advice! When developing the diagram, take into account the laying of other communications and pipelines on your site. They should not interfere with each other.

Calculation of system parameters

For normal operation of storm drains, the following are determined:

  • drainage water consumption;
  • pipe diameter;
  • pipeline slope;
  • laying depth.

The flow rate of discharged water depends on the area from which water is removed and the intensity of precipitation (according to SNiP-2.04.03-85, Table 4). The volume of drained water is calculated using formulas for rain and melt water, in detail, taking into account the correction factors set out in Section 3 “Methods for calculating volumes of organized and unorganized runoff”, Kaluga, 2011 (in SNiP there is a calculation algorithm, but it is more complicated) .

IN general view The formula for calculation looks like this:

  • Q is the volume of water that the system must remove;
  • q20—precipitation intensity;
  • F is the area of ​​surfaces from which water is planned to be drained;
  • Ψ — correction factor, depending on the covering material of the site from which water is collected.

The flows from each storm inlet when merging with other flows are summed up, and the diameters of the pipes become larger. In practice, for individual sections of storm drains country house pipes Ø 100-150 mm are taken with the site, for the main line - Ø 200 mm.

The slopes of channels, trays and pipelines are taken according to SNiP-2.04.03-85, which determines the minimum values ​​for:

  • Ø 150 mm - 0.008 (8 mm per 1 linear m);
  • Ø 200 mm - 0.007 (7 mm per 1 linear m).

For individual trays of any cross-section minimum slope— 0.005 (5 mm per 1 linear m). Some reinforced concrete products immediately have desired inclination, indicated by an arrow.

In practice, it is advisable to make the slope greater than the minimum: 15-30 mm per 1 linear. m.

The depth of laying a domestic storm sewer is less than the drainage one if both networks are installed on the site, and averages 30 cm.

Storm sewer installation

The scheme has been worked out, calculations have been completed, all elements of the system have been purchased. At the first stage, gutters and pipes are installed on the roof.

The next stage is marking the future system on the site: with a tape measure, pegs and ropes. Having outlined the laying of the route and the installation of a sand trap, wells and collector, they begin excavation work.

Linear sewerage trays laid on paved paths are mounted taking into account the preparation of the cushion so that their upper edge does not protrude above the tiles, asphalt or cobblestones (the level of the surface to be drained). The trays must be installed in a dug and compacted trench on a sand or sand-cement substrate. This way the product will be securely fixed and will last longer. After installing the trays, the joints between the individual sections are sealed and the entire channel is covered with a grid.

Layout of the drainage tray: 1 - sand cushion; 2 — concrete base; 3 - soil; 4 - artificial base; 5 - asphalt concrete pavement; 6 — drainage tray with grate; 7 — thermoweld (bitumen, sealant); 8 - paving slabs; 9 - leveling layer; 10 - base

Important! When laying trays, do not forget to use a level to determine the slope towards the collector.

Along with the trays, according to the diagram, sand traps (at the water inlet from the tray into the pipe) and inspection wells are built into the system.

Storm water inlets are installed, to which an elbow is connected at a slight slope, and pipes with fittings are routed closed to the collector or water discharge point. Pipes closed wiring laid in dug trenches on a sand cushion.

When connecting a storage collector to the network, you need to make sure that it is dug below the level of the pipelines and is thermally insulated with a layer of sand and gravel.

Before covering the wiring with sand, tiles, earth or turf, you need to conduct hydraulic tests, locate leaks and fix them. Only after positive result The system test is closed.

The site is beautiful, the house, buildings and paths are protected from excess moisture!

The drainage system is an integral part of the infrastructure of residential and industrial areas. Drainage trays serve for drainage of storm and melt water in the areas of residential and administrative buildings; stadiums; production premises; parking lots, parking lots, roads, etc. For storm drainage, plastic trays, concrete trays made of polymer concrete, fiber-reinforced concrete or reinforced concrete can be used; there are also reinforced trays for places with high loads. Storm drainage is especially important in large areas such as parking lots, roads, as well as houses and buildings. Drainage trays are made of high-strength material, the composition of which has a number of advantages, such as: resistance to various temperatures, high resistance to mechanical loads and immunity to active chemicals.

Drainage drainage trays, storm trays for surface drainage with gratings and separately

Drainage is integral part improvement residential buildings, large industrial, industrial territories. Drainage trays are elements of storm drainage systems, which are designed for surface drainage resulting from the loss of a huge volume of precipitation. Such devices are installed on terraces, platforms, sidewalks, pedestrian paths, at the entrances to the yard, at the entrance to the house, roads, parking lots, on airport runways. For storm drainage, plastic, concrete, polymer concrete trays can be used; reinforced trays are also used for places with increased load. Sand traps are made for surface drainage.

Plastic drainage trays are today's version of standard drainage trays. Tested, reliable, highly efficient plastic has been quite successfully used in the production of components for a long time. drainage systems. Plastic trays are extremely accessible when installing drainage on the territory, for example, of a private courtyard, cottage, summer cottage. Plastic drainage trays differ from concrete ones in their lighter weight, can be transported without difficulty, and are very practical and convenient to install. Drainage elements of this type have the possibility of docking with various kinds sewer pipes using a gutter at the bottom of the tray, thereby ensuring a tight, airtight connection

The most long-used trays for the construction of storm drainage are concrete trays. They are made from fiber-reinforced concrete, poured according to established forms, with a given cross-section and depth. Fiber-reinforced concrete is characterized by strong resistance to temperature changes and high strength, which makes it possible to use trays made of this material in practice in all storm sewer systems. Concrete trays are supplied with water inlet steel and cast iron gratings for different types loads

Drainage trays made of polymer concrete combine a chain positive properties concrete trays and plastic ones, and significantly outweigh them in physical and mechanical parameters. The structure of polymer concrete objects for drainage is formed with the addition of natural mineral fillers such as quartz, river sand, granite chips, which are connected to each other using a high-strength polymer - epoxy or polyester resin, as a result of the interaction of which they form a material similar to plastic, and in some properties even superior to concrete. The service life of polymer concrete trays is more than thirty years, if the technology for laying these elements is strictly followed. Even after the period of operation has expired, polymer concrete trays do not lose their basic qualities, including excellent throughput and the ability to self-clean. Smooth inner surface of the drainage elements under consideration helps to increase the flow rate.

Sand traps for surface drainage

The sand trap is a component of surface drainage trays and storm sewers. It is endowed with the functions of collecting garbage, fallen leaves, sand, which solves the problem of clogging large sewer pipes. This device It is equipped with a special basket where garbage goes, and then it can be easily removed and cleaned. These storm drainage elements are made from the same materials as plastic trays. They have special connecting pockets that are adapted for easy joining of drainage pipes.

Buy drainage trays You can visit our website, where you can choose, compare and order drainage items on the most favorable terms. The price for all types of drainage trays is based on technical characteristics material and quantity.

The concept of linear drainage has existed for many years. Every year the pace of construction increases significantly, and the issue of collecting and draining rain and melt water becomes mandatory in the engineering equipment of every modern facility. With the development of new technologies, stormwater has gained the new kind. Now it's effective modern systems storm drainage.

Installation does not require serious surface preparation; it is enough to make flat slopes on both sides of the drainage line. As a result, the likelihood of ground subsidence is reduced, the length of storm drainage channels is reduced, and the catchment area is increased. It is a network of buried gutters (drainage channels, trays) and sand traps - containers in which sand and small debris carried out by the flow of water are retained, being link between surface drainage and underground storm drainage. From above, rainwater inlet trays and sand traps are covered with protective and decorative drainage gratings.

Device and key elements:

  1. Road, sidewalk covering;
  2. Leveling layer;
  3. Base road surface;
  4. Priming;
  5. Rain, melt water;
  6. Sand trap;
  7. Drainage tray;
  8. Drainage grate;
  9. Stub;
  10. Grill fasteners;
  11. Storm sewer pipe;
  12. Concrete heel.

Linear drainage standard series

Presented with drainage trays with a hydraulic section width of 100 mm (fiber-reinforced concrete, polymer concrete, plastic), 200-300 mm (plastic), equipped with drainage gratings and cake traps.

Installed in places with low passenger vehicle traffic and pedestrian areas, for example, for the construction of a storm drain:

  • cottage;
  • garage;
  • parking;
  • multi-storey car parks;
  • pedestrian sidewalks;
  • sports facilities.

Standard series stormwater gutters can be equipped with the following additional accessories: sand traps, fasteners, plugs and reinforcing attachments.

The standard series of trays correspond to load class A15-C250 according to EN1433.