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Sewerage

August 12, 2017 18:06

Depth of the water drain

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When laying the pipeline system in the Russian reality, it is necessary to take into account the weather and climatic conditions.The fact that there is a certain depth of soil freezing in each region.Frozen soil negatively affects the pipe and can damage them.As a result, you will have to find a reasonable compromise between the depth of laying the sewage system and the need to minimize the costs of trenching and laying of the pipeline system.

Depth of the water drain in a private house

Depth of the water drain in a private house

We are looking for a combination of reliability and price

Any construction work is based on engineering calculations, which in turn is a reasonable combination of the required reliability and efficiency of facilities and the price to be paid forits construction.

Laying of external sewer pipes

Laying of external sewer pipes

Thus, the main method of laying pipes outside sewer systems are open and closed.sewer pipe can be laid in a trench on a compacted sand cushion and on a special tray, which can be made of various materials.

In the event that the pipe between the surface and the soil there will be an obstacle in the form of a tray - the equipment will last much longer, but this approach will increase the cost of the work.

parameters determining the depth of the pipe sewage

So what would calculate the depth at which to place the pipe sewage system, you will have to take into account the following factors:

  • freezing depth of your soil type in your area,
  • Location and depthoccurrence of a septic tank or reservoir,
  • strength of the walls of pipes used,
  • Possible load on the pipe, transmitted from the surface of the earth.
Laying of sewer pipe

Laying sewer

A fundamental factor is the depth of soil freezing.It is determined based on the soil type and climatic conditions of your region.And can vary significantly.

However, depending on the section of pipe laying depth, depending on the freezing level can be reduced.For example, a large section of pipe laying automatically reduces the depth of just half a meter, resulting in the fact that for the Moscow region the depth of 1.1 meters, and to Sochi - almost at the surface.

However, these indicators are mainly used for laying large utilities for the apartment buildings.

the design and installation of an autonomous sewer system in a private house on a suburban area is commonly used free-flow system in which waste water moves by gravity, under the influence of gravity.To ensure the flow of movement of the pipe are placed at a slant, so that has to take into account this factor when calculating the depth.

Calculate pipe depth for a private sewage system in the Moscow region.Pipes of large diameter it can be placed at a depth of 1.1 meters.In this case, assume that autonomous cleaning station is 20 meters from our house.

Thus, taking into account the optimal slope of the sewer pipe 2 centimeters per meter, we obtain the inlet arrangement depth treatment system in the 1.5 meters and this is the case, if the site has a perfectly flat terrain.If

form their own septic tank of reinforced concrete rings, then the depth of its bottom reaches 2.7 meters, and in the event that will be used stand-alone installation of purification of industrial production - the value of immersion will depend on its geometrical dimensions.

Sewer pipe from the house to the well

Sewer pipe from the house to the well

Any earthworks have a price (or the length of time, if you carry them out independently. Meanwhile, the deepening of the sewer system below the frost line can turn out to be impractical. The reason for this are the following factors: so the probability freezing of sewage, especially for small linear dimensions of waste remains low

  • sewage from the ability to live in the home has a positive, the room temperature
  • If the sewerage system does not work in it and there is nothing to freeze (as opposed to.water supply system, which is constantly pressurized water,
  • in addition, septic tank cleaning equipment or by themselves are a source of heat, which is released as a result of vital activity of microorganisms.

As a result of these factors the depth of the sewer pipe system can be reduced.For the Russian median strip, you can bury it by up to 70 centimeters, which allows the system to function effectively even in the winter.Output from the house drains should be located at a depth of not less than half a meter, because the heat from the house brings additional heating pipes.

Connection

centralized network When connected to the main sewerage network, in addition to the depth of frost occurs, and the factor of the depth point of connection to the central manifold.Therefore, for the calculation of the system, the depth of the point of exit from the house should clearly know the location of the mouth of the receiving sewer arrangement.In the event that you are unable to

If you plan to connect to the central sewerage network, the main factor influencing the laying depth is the location of the connection point.If a pipeline laid beneath the central point of the collector arrangement, the system will not work, since the liquid will not be able to move by gravity.

There are two solutions to this problem:

  • You can equip its sewer system discharge pump that will supply waste water to the point of junction to the main collector.Of course, in this case, the system will have to supply electricity in the event of a power outage, the formation of blockages.
  • also lines the sewer system can be insulated.This can be done as a coated pipe insulation material and insulation organization operating from the mains or from the hot water system (if available).

In any case, if you're laying pipe in the ground open way, without the use of protective trays, you should spend their waterproofing.On the pipes can be collected condensate, which is within a short period of time will result in deteriorated heat-insulating layer.

also insulation tubes passively or actively using heating cables should be carried out in regions with very cold climate conditions.In such regions, it makes no sense to deepen the sewers below the level of soil freezing, as it can reach tens of meters.In this case do without active heating sewer pipes.

We take into account the strength characteristics of the pipes

Take into account the strength characteristics of the pipes

Another factor influencing the estimated depth of laying the sewage system is the strength of the pipes used.The most popular in recent years are of PVC sewer pipe, which perfectly combine a reasonable price and high quality.

But be aware that plastic pipes have certain restrictions on use, which should be described in the manufacturer's specifications.Pipes are recommended to be used for the construction of outdoor sewerage, usually have a solid wall, as a more active external influence will be provided to them.

So, if you plan to install a sewer pipe with a large depth of over which the road will pass or actively used land area - it makes sense to choose the specialized equipment.Such loads can withstand, for example, two-layer corrugated pipe made from high-strength polyethylene.

distinguish such articles with high strength from conventional sewer pipes can be at an orange-brown, which is formed by the presence of specific additives that increase the rigidity of the product.This line can be deepened under the ground three meters.

We carry out earthworks for laying sewerage

We perform earthworks for laying sewerage

Depending on the amount of digging you can use both manual and mechanized method of laying sewer pipes.

for deep hole and use pipelines with large cross section should be applied excavator bucket width of which will lay the pipe together with the locking tray.

In the same case, if pave the sewer system will be in the area with dense buildings - is an alternative to the manual method of digging trenches does not exist.

In any case, when using manual or mechanical way, do not forget that the depth of the trench must be formed by at least half a meter lower than the estimated depth of the pipe.These 50 cm are used to create a sand cushion.

Mounting external sewer

After creating the trench manually or mechanically on the bottom is formed by a sand cushion thickness of about half a meter.

Radom on the ground laid out the essential elements of the pipeline system (themselves, pipes, connection fittings, trays and so on),

Starting from the foundation form the pipeline.It is advisable to place the common sewer drain output has been created in the casting of the foundation base.Otherwise you will have to withdraw the tube through a concrete wall.

When connecting elements sewer system using silicone grease.Typically, plastic pipes are joined without the use of additional fasteners.

When organizations use the rotation of the pipeline fittings connecting parts.

In that case, if the total length of the sewer pipe to exceed 12 meters - necessary to create an inspection pit.

After connecting all the pipes The testing system for various parameters using the maximum load.Here you not only find out the correctness of the angle of the pipe, and check the system for leaks.

During the backfill, it is desirable to fill the pipe with water.In any case, careful to stamp the soil or sand on the sides of the pipe, not doing this operation on its top.

thickness of the layer of sand filling system above the pipe should not be less than 15 centimeters.Only after the formation of this layer begin to backfill soil.

In conclusion, you can see a video tutorial training for laying sewer pipes.

Video - correct way to sewer installation in a private home

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