Repairable device communications slab foundation

Users of our portal have accumulated extensive experience in the construction of foundations UWB and monolithic slabs. A lot of well constructed and operated these types of foundations, with "firmly" rendered monolithic communications, confirmed the reliability of structural elements. But novice developers think about how, if necessary, repaired buried underground communications. In addition, there may be force majeure, which could lead to the need for access to the sewer and water pipes.

Therefore, in this article we will answer the following questions:

• Whether it is necessary to ensure maintainability of communications under the slab foundation.
• How to lay the "unrecoverable" under the slab foundation of communication and UWB.
• Which engineering solutions allow to repair or replace sewage pipes and water supply, buried beneath a monolithic slab.

Repair of communication under the slab foundation: Pros and Cons

If you examine the topic at Forumhouse, connected with piped water supply and sanitation under the slab foundation, the users can be divided into two camps of the portal. The first - those who believes that the utilities must necessarily be suitable for repair. The latter believe that all the problems with "inzhenerki" occur due to violations of building codes and regulations, the use of poor quality materials or used for other purposes. That is, if to do everything as it should, then the Communications can not worry.

We should not forget that an emergency situation may arise and competently conducted by communications, have already worked more than one year.

azemskov (Member FORUMHOUSE):

- I know a case where the pipe warm floor foundation UWB collectors of furniture damaged by drilling them in 2 places. Installers, who came to establish a wardrobe, just forgot to warn that the floor can not be drilled.

vaus (User FORUMHOUSE):

- to share their experiences. Customer in a year decided to independently connect the water supply. They came "experts" are connected to a pipe leading from the base plate. What and how were pressurized under any pressure, no one was looking. The next day, the system pressure has dropped, and then from under the blind area scored a fountain of water.

If punched pipes floor heating is still possible to recover, revealing the floor and the upper gouging concrete layer, then what if the sewage system (particularly branched tracks) of lowered error diapers? After the pipe "buried" under the foundation.

Or due to errors made in the installation of pipes, with time in the track a leak, and the water began to soak the subgrade. From mistakes no one is immune. Even experienced homeowners may overlook the workers, who, for example, changing the tile in the bathroom, go down the toilet glue residue and debris. Or during repairs the pipeline gets mixture inlet floor.

There are many solutions. Each of them can lead to costly repairs and complex work related to undermine the foundation slab. Moreover, it is often impossible to do without destroying the carefully compacted sand bedWhich is then (after the elimination of the accident) can not douplotnit to its original condition.

Of course, you can be guided by the rule that the optimal solution to the problem of utilities under the slab foundation - their absence. But there are other options:

• Properly design engineering services. This will allow to operate the water supply and sewerage pipes for the entire life of the building without the need of repair "inzhenerki". We do not consider the emergency situation caused by the fault of users, in flagrant violation of the rules of operation of the system.
• The apparatus covers, which pipes extend and pits, providing direct access to communications. In this case, if necessary, the user can clean or repair the communication. This embodiment entails a constructive complexity and increase stove construction estimates.

Features installation of utilities under the slab foundation

The debate about whether to do or not repairable communication under the slab foundation, resemble battle related electrical installation in timber and frame houses by cable laying in metal pipes.

It is a mistake to think that by mounting utilities in special cartridges and arranged in a pit stove, provides 100 percent reliability of the system. All the efforts and costs are meaningless if at the initial stage of installation mistakes.

So first tell you, how to mount utilities under the slab without the use of a case.

First, remember the cardinal rule: hope that hired the workers, even under the supervision of the foreman / superintendent will make the laying of communications properly, hardly worth it. Only the personal control of each stage of the developer or completely self-performed work (based on knowledge) save us from problems in the future. Second - list the basic principles of laying sewer pipes and water runs under the slab foundation:

• Trenches for pipes delve into the already compacted sand cushion.
• Before laying the pipes the excavated trench bottom compacted.
• Tubes are placed into the trench with a certain bias, at its predetermined device. Network are conducting direct path.

Sloping pipes of 110 mm diameter is 2 cm to 1 meter and 3 cm 1 meter diameter pipe at 50 mm.

• Avoiding sewer installation in the form of complex branches with multiple laterals and turns.
• Minimize the length of the pipe before entering into the septic tank. To do this, all water users are grouped as compact as possible, and are not put at opposite ends of the house. The two-storey houses bathrooms are designed on top of each other.
• Jointing pipe is conducted with a liquid soap. It follows that the sealing gum is not turned up and did not explode. Pipes are inserted into each other not to lock, and with a small play, providing progress in the compound.
• The laid pipe is filled with sand, which is also compacted.
• Before and after filling with sand laid pipe is checked for tightness by filling trace water for 24 hours with plugged outputs.
• Yield sewer pipe through the plate before pouring concrete body is wrapped izolona, ​​which due to elastic insert untie structure.
• Stove arrange for cleaning sewage.

Properly exposed slope sewage can check "old-fashioned" way. Mark handful clay crumple it into a ball, wrapped newsprint and lowered into the pipe. Then poured into 5.6 liters of sewage water. "Ball" is due out at the end of the track. If it takes more than 10 gallons of water, or not rolled bun, then in step or assemblies of tubes forming the slope mistakes.

azemskov:

- Water in the plate assembly plant: take IPA pipe diameters of 32 mm and laying it into the sleeve of larger diameter HDPE pipe.

As for the life of the system, then the sewer pipe manufacturers usually offer a guarantee of 30-50 years. It - when operated in an apartment building. In the particular housing construction load (wastewater stream) at times less. Those. tube life should be longer. In case of obstruction, clears sanitary sewer cable through auditing hatches located in bathrooms.

al185 (FORUMHOUSE User):

- In my opinion, the idea of ​​laying pipes in sleeves with pit more harm than good. The developer, hoping that it will save him, forget about the main thing - proper design.

Also refer to foreign experience in the construction of insulated slab foundation with a contour of water heating (UWB came to us from there). In Sweden or Germany simply bury communications (water pipes and sewage systems) without any case and pits, and the system works for many years. And all the houses are built strictly on the project with the technical supervision of specialists.

Features of the device serviceable communications under the slab foundation

Having reviewed the basic principles of a lining of communications in the slab foundation, go to the utilities repairable device methods. Why is this done? If we exclude the option: mounting "inzhenerki" nakosyachili builders, the driving force behind the foundation slab complication devices with pits and covers, becomes the life of the building and the pipes themselves.

We observe the principle of reasonable sufficiency. That is, if the manufacturer indicates that the life of the resin pipe is 50 years (and this is confirmed documentary), and in the construction of the house builder expects that the cottage will serve him this time, then the system balanced.

If the homeowner decides to build a building with a lifetime of 100 years and more, There is concern whether the communication will serve (even well-built) the entire period. Or at one point (already at an advanced age or children) will have to think what to do with clogged / potokshimi pipes burrowed beneath the plate. Nor can it be ruled out that thinking about the repair of communications will have much earlier.

a991ru (User FORUMHOUSE):

- I believe that the problem with communication may occur in 10 years, so I plan to make it maintainable. I think that the additional costs are justified provided that the maintainability is achieved by a simple and reliable way.

Mount maintainability of the system can, if lead pipes and water pipes in their cases - sleeves made of large diameter pipes. Utilities are displayed in the sump (caisson, manhole), which settle in the boiler / technical room and closed decorative cap.

Usually case come from asbestos-cement pipes, with the conclusion of the pipe is done for the foundation perimeter and warmed otmostkiIn an additional pit. In case of a leak runs water or sewage will flow for Case / sleeve in the pit, not the foundation. Also in case the pipe (e.g., water), in extreme cases, can be stretched again. Interesting technical details of such a system.

Mihail1974 (FORUMHOUSE User):

- I believe that the pit under the slab while complicating the construction, but it allows you to build a simple and reliable, maintainability engineering system. With pit is much easier to repair or replace a pipe under the house, if something beat - clean collated knees.

Areaway is a monolithic concrete box with a bottom (or, alternatively, to fill the bottom gravel) size 700h700h700 mm. First fill the pit, and then on top of it erecting floor slab. The pit infest cases - asbestos cement pipe diameter of 160 and 110 mm, sewers and water respectively.

Under the rules of sewage pipes and water are not carried out in one case, and conducted separate tracks.

An alternative can be a monolithic pit dobornye Pit ring diameter 0.7 or 1 meter and 0.6 meters in height. Or pit is welded from metal, as the caisson for placing the pumping equipment at the well water supply. Suitable option and 200-liter barrels, under the slab rendered monolithic.

The main requirement for the construction of the pit - a reliable waterproofing design and unleashing a base plate. For this purpose, the top of the pit is set insert (so-called expansion joint / gap) of elastic material, capable of compensating motions structure. For example, Epps thickness of 5 cm, or it is possible to wrap several times manhole ring polyethylene foam 10 mm thick. This will provide a separate work pit and foundation slab.

Mihail1974:

- It is important to remember that the aperture of the pit considerably weakens the plate, and when the device increases the risk of cracks in the corners. Therefore, the location of the pit should be carefully designed and avoid placing it in the zone of maximum stress. A separate calculation of the correct reinforcement needed.

Organizing a pit, the following tasks:

• Provides maintainability of communications.
• can be replaced by tube if necessary.
• The pit can be installed a pumping station.

Instead of asbestos-cement pipe water can make the IPA through the pipe diameter 80 mm, smoothly curving its inlet plate body and stretched HDPE pipe inside diameter of 32 mm.

Pit is desirable to lay against the wall in order to minimize the length of the tracks under the stove and put in the house of one fanovy riser.

The smaller runs under slab foundation, and the shorter they are, the more reliable network engineering.

Another option for laying sewerage UWB - from the user with the nickname FORUMHOUSE Alexandr1974. User is proposed to use as a sewer pipe corrugated resin tube of 10 cm diameter. The pipe is carried out in insulated Styrofoam box, which is wrapped in reinforced polyethylene film.

In this embodiment, since corrugated pipe is flexible, repairing sewers is simple: you need to otkapal trench to get a tube inserted through the sleeve in a new pit and dig a trench. The main thing - to withstand the required slope of the track.

 Another scheme of maintainable communication.

Dmitry 777 (User FORUMHOUSE):

- I'll tell you how I spent serviceable communication under his plate. Drainage is stacked under the slab in the asbestos cement pipe. The plate is made pit size 40h70 cm. Water (IPA pipe) wound through the usual reddish sewer pipe. In case of failure of the water drain pipe in redconnecting wells and the soil does not erode. Full option - stretch the smaller diameter pipe and sewer can be replaced through the holder or access to it, making a tunnel by the garage (there is less load).

For smooth rotation of the track connection of two pipes do not at the same angle of 90 degrees, and using two angles at 45 degrees.

Diomedes (User FORUMHOUSE):

- I, too, for the maintainability of communications under the UWB. I do not understand how it is possible to lay the pipe on anti-handling devices. In life anything can happen, and the cost of replacing the pipe system is not commensurate with the risk value of the basement and ruined houses.

The user has made in the foundation mikropodpol, warmed Epps size 3500h4500h90 mm, all bathroom and boiler room. The mini-basement introduced water from the well, the output water pipe in a garage and the bath together with cables. On the other hand derived sewer conclusions hot and cold water. Also have backed favorites sleeves.

All communications from the water users - toilet, sink, shower, washing machine) lowered down through the ceiling slab subfloor. Access mikropodpol through floor hatch disguised top tiles in the color of the floor.

In addition, the second floor bathroom is located directly above the first. Communications are the kitchen turn IPA tube 50 mm in diameter. On the floor of the basement pit mounted with the withdrawal of the well. In the case of leakage it will avoid flooding mikropodpola.

Diomedes:

- Of course, it's not the cheapest option, but provided a complete system maintainability.

The final decision - to do or not repairable communication under the slab foundation or UWB - Choosing a developer and designer. Each case should be considered on an individual basis, depending on the project at home, its constructive bearing capacity of the soil and the possibility of careful control of all construction processes. Any error made at the communication device in the slab foundation, is more expensive than, for example, in a belt.

When the device "inzhenerki" remember: communication - it is a complex system, where each element are closely correlated with each other. Hope that by making pit and cases, we protect themselves from the problems and can be mounted in a slipshod system of water supply and sanitation - a profound error! The cornerstone always put a competent design and quality performance.

question and get an answer, you can ask experts in the subject of at FORUMHOUSE repairable communications device under the foundation slab. Also on our portal contains detailed Recommendations for the construction of a UWB foundation.

Recommend that you read the article, which describes, how to choose the foundation under the house, how to calculate the formwork for the foundationThat it is not rasporlo concrete when pouring, and how to concreting at low temperatures.

And from movies can be found, What is the foundation of "box-cooker"and as the foundation being built UWB.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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