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As divert water from its site: drainage and livnevki

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Organization of drainage systems and storm sewer: basics, features, expert advice

For many owners of suburban real urgent problem leads with areas of excess moisture, for which specialized system solutions are used. The combination of deep drainage and storm sewer to protect the building from negative influence of the water and prevent waterlogging. With the help of experts of the company Uponor we consider how to implement on your site such systems.

This article - part Academy course FORUMHOUSE.

  • What are the functions drainage system
  • Features drainage systems
  • Features stormwater
  • Nuances of the installation drainage systems

What are the functions drainage system

Without water there is no life, but if it is an excessive amount - this is the life is much more complicated. Stagnation of water is detrimental to a fertile bed, and any structures in contact with soil watered, fail significantly faster. It's not just the track and other surfaces on which months are puddles, but also the foundations.

Maria Sukharev

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Specialist company Uponor

It is difficult to overestimate the importance of protecting the foundation of the house and the surrounding areas from the negative effects of moisture, affecting both the characteristics of the building and the occupants. The drainage system is arranged in the area of ​​the foundation, not only collects and removes water, but also prevents the increase in the groundwater level.

Even the capillary rise of moisture fraught otsyrevanie foundation and the appearance of mold, freezing the wet soil under the spot development may lead to deformation of the base. Not to mention the fact that the ice crystals without any problems, "tear" the most durable materials and in the spring instead of the monolith is quite possible to detect it cracked like. drainage system timely diverts water from all types of foundation and base, thereby draining them and providing the supporting structures of the optimal mode of operation.

sartreek

Member FORUMHOUSE

Clay soil, water lapped at me rather high - 30-40 cm, I want around the house to make a drainage with a tap into the well, followed by pumping.. High water to live does not prevent entirely, but the foundation of the winter it is a pity.

According to statistics, an average area throughout the year with cottage roof going from 50 to 150 m³ effluent comprising melt and rainwater. Draining of the volume of water to the area, even with permeable soil can cause congestion, not to mention the clay soils. To prevent this there is a storm water drain.

Maria Sukharev

Storm sewer designed for collecting, filtering and exhaust rain and melt waters and surface water during snow melting and heavy rain. Thus preventing flooding of buildings and the formation of puddles in the warm season and ice in the cold season.

Drainage and storm sewer - different systems and should be differentiated.

Skazochnik14

Member FORUMHOUSE

Need advice in the organization of the drainage system around the house and disposal of water from the roof. My house is located on the banks of the former river, now it does not flow, the groundwater level is very high, in the spring in the basement until it was done waterproofing, water appeared. This summer, decided to make drainage and combined it with livnevki. Drainage tube (corrugated tube is 110 mm, with perforations in the geotextile) brought into the lake. Now I think that combined in vain: during heavy rain does not appear that the water flows out of the drainage pipe, it just soaks into the ground. Prompt, please, it was possible to do so or livnevki better not to have the drain?

Maria Sukharev

deep drainage and storm sewer system perform related, however, different tasks. Drain collects the water contained in the soil and removes it from the house foundation. If necessary, drainage also prevent the rise of groundwater to the level of the lower base of the building. Storm drainage diverts rainwater from the roof in order to avoid the deep puddles in the yard, which can increase the humidity of the foundation and basement.

Storm water is not recommended to be discharged into the drainage system. If this occurs, when heavy rain overflow water drain pipe, which puts pressure on the foundation structure. Thus, the drainage system becomes a reverse effect that occurs in this case. The shape of the drainage tube or arrangement of the holes also improve the capacity of the drainage system to protect themselves from the excess rainwater.

The water coming from the drainage systems and storm sewer, accumulates mainly of drains. The connection point of the drain pipe within the well is recommended to install a check valve, which even in the case of flooding will not allow back flow through the drainage system to the foundation building.

  • Storm-water inlets.
  • Storm sewer pipe.
  • Drain pipe.
  • Drain well.
  • Dozhdepriemnaya funnel.
  • Flexible flared tee.
  • Flexible flared outlet.
  • The collector well (solid iron cap and ball check valve).
  • Collector well (cast iron grating cover).

Features drainage systems

Drainage systems are also called deep as they are put at a certain depth on the perimeter of the house on the foundation and / or in the territory of the site. Components of drainage system includes the following elements.

  • Drainage pipe for the collection and disposal of water - polymer with perforations; release as a bilayer with a smooth inner wall and a corrugated outer and unilamellar, the diameter is 110 mm and 160 mm (calculated value).
  • Drainage wells - polymer, the diameter of 300-500 mm.

Maria Sukharev

Drainage wells are paragraphs maintenance inlet and outlet sections pipeline and to provide access to clean drain pipes, which enhances maintainability system. In prifundamentnyh systems, drainage wells are mounted at each corner of the house, on sites - at every second bend.

  • Commutator shafts - one or more finite elements of the system, intended for collecting water abstracted. Depending on the water absorption capacity of soil collector wells may be either sealed, calculated on a periodic evacuating and absorptive (filter).

Features stormwater

Storm drainage, this surface system is not designed for the drainage of the soil, its only task is to collect and discharge of sediment from the roofs of buildings and surface runoff. It consists of several components.

  • Dozhdepriemnye funnel - polymer, with a grille mounted directly under the gutters are connected with pipes for stormwater.
  • Pipes - polymeric bilayer, with smooth internal walls and a corrugated outer diameter 110 and 160 mm (calculated value).
  • Sumps - polymer, with a grill cover.

Maria Sukharev

Runoff (rainfall, melted water) portion sent to the sump, which grid cap is below ground level. Collecting waste water is carried out either by gradient (natural terrain, ditch), or by means of special trays. Sumps connected pipes to the collector stormwater drainage system or water is removed off-site.

Installation of drainage systems and storm sewer pipe laying ideally carried out simultaneously with the construction of the house, after the device foundation. However, in practice, often organize livnevki already at the end of the construction work.

kiko99

Member FORUMHOUSE

I plan to do drainage from the roof into the gutter (off-site) using pipes. T.. To ditch portion slightly lower level, and an almost flat portion itself, the pipes will be located livnevki shallow, and substantially horizontally, with minimal bias - at least 1 cm per meter. Experimentally found out that the water from the ditch far from the trough flows through pipes by gravity and go into the ditch (perhaps in some places stagnates after draining the bulk). Advise, please, in the period of frost and thaw in the autumn-winter and spring there is a possibility that the burst pipe from the expansion of the water remaining in the pipes? Pipes laid 110th.

Maria Sukharev

The risk certainly exists because:

  • No recommendations are made to comply with the minimum deviation stormwater (for pipes DN 110 mm - 2 cm by 1 m), and, accordingly, does not provide optimum drainage rate;
  • According to the description, the pipeline is laid above the freezing depth.

The degree of risk will depend on the material of the pipeline, and the depth values ​​of the depth hole and freezing ground in the region, and on the installation conditions. But it is worth noting that in the private sector piping stormwater almost always laid much above the freezing depth. The solution in this case is a heat insulation pipe, such as when using plates of polystyrene. Either way, the effectiveness of this event will be associated with the factors described above.

Nuances of the installation drainage systems

Depth of the drainage pipes and storm sewer on private plots are usually around one meter, this figure increases if a house with a basement floor. Since the key to its effectiveness is a year-round job, and the level of soil freezing in many regions exceeds the depth of laying the drainage in the system it is advisable to use prifundamentnoy insulation. Most use an extruded polystyrene foam thickness of 100 mm, calculated on the load and direct contact with the soil and moisture.

Maria Sukharev

Mounting of drainage systems is carried out as follows:

  • prifundamentnogo pipelines for drainage and storm sewer laid in a trench in parallel;
  • slope for drainage is 5 mm / m, for livnevki 2 cm / m;
  • to save bandwidth systems, turns and junctions perform flexible fittings (for drain assembly without sealing rings, stormwater pipes with O-rings);
  • pipe laid on podsypku crushed stone and covered with a layer of gravel;
  • backfilling the trench is used selected from the ground if clay soil, backfill produce imported soil.

The complex of the deep surface drainage and allows maximum stormwater drain water effectively with the accumulating portions or effluents for recycling.

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