The foundation on screw piles with their hands: step by step guide

This technology is used to accelerate the construction is not too heavy buildings and other architectural structures. It is suitable for the construction of reliable grounds even on soft ground. Its use helps prudent owners save time and money. we'll discuss in this guide, that it represents foundation on screw piles, with their hands or with the assistance of its experts should build on what the pros and cons should be noted, as well as how to perform repair and finishing of pile structures.

The foundation on screw piles

In preparation for the construction of houses should respond correctly to the different practical issues:

• It is necessary to find out whether suitable screw pile-foundation for the building of a certain size, made of foam blocks.
• Useful information on how to select the basic materials and components for the project at a reasonable cost.
• Should definitely learn how to do the calculation to create a structure to maintain stability for a long service life.
• It is necessary to clarify how to mount the base, so as not to impede the execution of subsequent construction operations if necessary blind area.
• After asking whether you want to trim that would have to make a decision than to sheathe the basement to get a good appearance and improve the consumer characteristics.

Answers to these questions are given in this article. When her studies do not forget about the individual characteristics of construction applications. For example, the load will increase significantly if the house is often used for receiving a large number of guests.

Note! We must remember that in the house pave sewers, and other engineering networks.

Pile Foundation with monolithic grillage

This construct is set as follows:

• Calculate the load that will create construction during operation.
• Depending on it, and with the suitable soil characteristics selected product specifications.

• Products screw manually or by means of power units, up to the level of occurrence of the dense layers.
• Levels pillars cut on a horizontal level.
• They fix the support plates and establish grillage.
• If necessary, make the trim.

This part of the structure prevents water accumulation around the building. When the system is running effectively fluid stormwater will be discharged in a timely manner. It would not provoke corrosive processes capable of destroying submerged in the ground metal.

In view of the anticipated loads are choosing not only the parameters pilesBut also the material of the grillage. Below it will be discussed various applications of this type of concrete piles in the Examples.

For such a design suitable pipe diameter from 55 to 80 mm with a wall thickness of 3 to 4 mm. If you purchase a product of sufficient length, the upper part can be used as a power frame.

In this embodiment, the combined use of the pile of 75 mm in diameter. They mounted melkozaglublenny concrete raft foundation. It set the speakers by pouring mortgages. Top support structure are welded to transverse stiffeners.

Such structures are subjected to strong dynamic mechanical stress, so increasing reliability requirements.

If you are installing a massive equipment, then this is where you need to install additional reinforcing elements.

For the construction of this houses suitable wooden grillage. When using metal loadings increase channel. If the size of the building exceed 10x10 meters, the walls are constructed from foam blocks, brick, Large piles used. Selected diameter of 108 mm and a with of 9 mm steel walls.

Important! Supporting the screw portion after completion of the installation should be at a level below the maximum soil freezing in a certain region. The necessary values ​​can be found on the Internet, or by contacting the municipal architectural office.

This figure shows how to modify standard components to address specific engineering tasks:

• Various distributed load on piles having a diameter of 108 mm (1) and 76 mm (2).
• To strengthen the central part added steel channels (3) binding. The side panels are based on the angular support (4).
• To the metal end walls (5) not in contact with the tree, the top layer is set waterproofing.
• joists (8) a floor covering (10) is based on wooden grillage. Wall of logs set on solid pillars.
• To prevent deformation of a wooden building (floors 1-2) recommended distance between the piles 200-270 cm.

Note! Even a pergola, another lightweight construction, it is necessary to make an exact calculation. Information in this section of data are approximate. They are corrected for building materials, soil characteristics and other important factors.

Related article:

Raft foundation - what is itHow to carry it out (detailed step by step instructions with photos) and how difficult such work - in these matters we will deal in our review. As well as useful advice and recommendations of experts.

Cons-screw pile foundation

In studying the issue, examine the negative nuances and pros together to choose to create a building structure support. During the comparison, check the complexity of the manufacturing operations, the durability that it is cheaper of the options presented. For local climatic conditions it is important, whether it is possible to carry out the installation of the winter.

What's better, foundation or screw piles, it should be clear allowing for the specific project. But in any case it is necessary to take into account the following shortcomings:

• Column with a sharp tip and the screw even using specialized powerful technique is difficult to immerse the dense soil. Upon detection of a stone can change a few points of support, either delete a single obstacle. But the rocks must be used otherwise.
• When excessive increase in distance between the piles horizontal grillage may be compromised. If you do not make productive diversion of storm water design can prosest. But such negative developments only show on the incorrect preliminary calculations. They do not depend on what type of foundation is chosen, ribbon or a screw.
• To keep sufficient strength, reduce the protruding portion of piles. For this reason, in such a house can not create a high basement, which implies the possibility of free movement.

• When installing the piles will not be applied near the wall of the house arm. You have to use special equipment.

The following are advantages foundations on piles:

If the soil classified as distending or flooding occurs frequently portion enlarged blade is used. To pass the frozen layer is used in winter is not sharp tip, and the drill (a serrated edge of the pipe).

Piles are suitable for use in areas with difficult terrain. They can be installed not only the house itself, but also the pier. They provide a solid lifetime when placing an object near an open body of water. They can be installed in cold weather, so we can exclude the respective limitations of the pouring of concrete products.

Experienced team, even without the use of actuators able to screw more than 20 piles per day.

Note! The figure shows that it takes at least four people to play high-quality techniques. Two - provide the necessary efforts to help leverage. One - supports column during rotation. Head controls vertical installation, coordinates activities of workers.

In this embodiment, a gear with a large gear ratio. Fit to drive a powerful drill. If the site is no network is 220 V, used a mobile generator.

This equipment will allow to create quickly a large reference field. When comparing the different options should be considered together all the real costs. Sometimes the order of experts with equipment less expensive than independent experiments. It should be remembered that the need for manual assistant technology.

Reliable to be a typical concrete foundation without preliminary calculations? Settles or not the base over time, if not installed on the site drainage system? Answers to these questions are given above. But it is also noteworthy the following nuances:

• Piles of this type do not pull from the soil moisture, so the structure is not subjected to the corresponding negative impact.
• The building, raised on the need to support insulate only half. It is much easier and more efficient than Isolated a standard concrete foundation.
• Application of this method is not accompanied by large excavation. No need for an equal platform reduces the overall cost. Compared with a typical tape foundation for a similar load they will be less than 25-45%.

For a complete analysis is necessary to determine what is best, TISE or screw mounts.

These articles provide as follows:

• Using a drill hole formed in the ground.
• Special bottom nozzle allows to form the bottom of the dome-shaped extension.
• The channel well set a tube of roofing material, the design Pins reinforcement.
• Next - the concrete is poured.

The main advantage is the lack of TISE piles of corrosive processes. But they can not be used immediately. Necessary to wait solidification of the mortar, that in the normal temperature condition ranges from 7 to 10 days. On the other hand it should be noted that the reinforced concrete structure has a relatively higher load-bearing capacity.

Pile foundation with his own hands: step by step instructions, video

The video below shows the relevant technology. But her simple copying is not allowed to use. It is necessary to prepare a draft. Let it be made not by the canons of engineering standards. But even basic scheme of arrangement of support is better in comparison with a complete lack of documentation.

Most it is necessary to find out what trends offer manufacturers. Some new types of piles are inexpensive and have excellent consumer characteristics.

The device under the foundation platform in this case is easier than careful alignment portion plot monolithic slab. Nevertheless, we must not forget about the possibility of using a high base for the solution of economic problems. Please remember to pads drainage system, Networks and communications.

Important! Below is a detailed step by step instructions. It will help their own hands to build a solid foundation without errors. But we must add to this the correct description of the defined parameters of the particular structure and its application.

Screw piles for the foundation

We were above are only some types of metal products in this category.

Increasing the number of blades facilitates screwing, provides greater support strength and load capacity increases. To simplify the connection of the levers and other devices - cut holes. To simplify the connection of welded flat grills, or "U" - shaped area. The second screw was added to facilitate maintaining the vertical position.

To strengthen the structure at its tip is added stiffeners (2). Surface protection against corrosion multilayer paint coating (3).

Such articles are constructed from cast iron. Casting helps eliminate defects of welded joints. These lugs even without special treatment are highly resistant to corrosion. They are not damaged when passing through dense rocks retain excellent functional state after decades of operation.

Responsible manufacturers use standard GOST standards for preventing the destructive oxidation processes. Cold technology cheaper hot dip galvanizing. But the second embodiment the protective coating is held firmly on the surface of the parent metal. powder color It provides high quality layers. But in the presence of stray currents in the soil may be damaged for 30-40 years.

To prolong the life, experts recommend pay attention to the region of the "ground-to-air." In some cases, they offer a winding corresponding portion of the polymer film. Also, use regular checkups with updating paint.

To eliminate the bother, you can make additional investments.

When the layer of soil and stain fix fiberglass prevent this detrimental effect of electrical currents. Such a decision - the most expensive of the options considered. But it ensures the integrity of metal products in harsh environments over several hundred years.

Note! Which is better to buy the product becomes clear after checking the geological composition of the soil and the detailed examination of loads and other features of the project.

Calculator-screw pile foundation (calculation screw piles bearing capacity)

For the construction of durable buildings need precise calculation. First you have to find out what loads can withstand pile when mounted on the land. Manually calculating formula do H = P / KWhere:

• H - bearing capacity of a bearing;
• R - calculated value, which is determined using a reference baseline;
• TO - factor, it can amend taking into account technology and survey work, other important factors.

The calculated value of the bearing capacity is determined by multiplying the area of ​​the screw (projection on a horizontal plane) to resist soil loads. The second parameter is taken from a specialized table. His lead in kilograms per centimeter. sq. taking into account the level. For soft loam, for example, using size: 3.5 units.

The correction factor is harder to determine:

• From 1.1 to 1.2 is used, if the composition of soil defined by complex geological survey area. Instruct the appropriate reference profile of the organization. Its specialists sampled at several points to the depth of sawmills that test in the laboratory. Will have to spend some time and money, but will get the most accurate result.
• The second method is simpler and less expensive. Applied drill monitoring the torque characteristics as immersion into the soil. If this method is selected, the correction coefficient is set at 1,2-1,25.
• In a further embodiment should increase it to 1.35-1.4. Here we need to dig pits themselves. The soil at the depth of the final installation of the screw independently verified. For example, one can measure the fraction of sand, then select the appropriate table from soil resistance.

Calculated by this method alone can be fast. If necessary - use a special online calculator. Necessary values ​​are inserted according to the algorithm described above.

A calculator for calculating the total load on the planned construction of a building

Next computing unit to perform better by using the respective software tools. When filling certain positions in handy the following information:

• To determine the area of ​​use of the walls house drawings. You can only multiply length by height, without deducting window and doorways. This is to speed up the process and will make an additional margin of safety oporn6oy design.
• Each floor is not difficult to figure out. The calculator has a drop-down "window" where it is necessary to note the presence of reinforcement. When dealing with this point must not forget to consider the empty spaces of double layers, stairs.
• Similarly, using the software prompts selected type roof. A large variety of materials does not allow to place all the possible options. Therefore, when filling using intimate weight analogs. The calculator itself will add loads that create corresponding truss structure.
• In a separate section provides calculation of the mass of snow. Here it is necessary to specify the slope of the roof, note the zone number using the card.
• The relatively small weight of the wooden raft foundation allows you to make the necessary correction by increasing the height of the walls. Other options (metal, concrete) are recorded in a separate section.

Now that you know how to calculate the weight of the structure. Further it is necessary to divide it into the previously calculated load-bearing capacity of the product. Suppose that after rounding the 19 piles. This result should be clarified.

Note! It should be remembered that a significant load creates furniture, themselves tenants, their guests, heavy decorations, appliances, utilities.

Piles set at the joints of building structures under the posts at the corners. The distance does not make more than 3000 mm apart. The exact plan of arrangement of support should be coordinated with the installation heating boilers, Other heavy process equipment.

Related article:

Pile Foundation: calculation. If there are difficulties with reliable support on a plot selected pile foundation structure. With the materials of this article, any person will be able to draft their own without errors.

Construction

In accordance with the design documentation transferred contours walls, the center lines of support heavy machinery, staircases. Handy twine, tape, wooden pegs.

These openings depth of about 40-60 cm can be done manually or by using special equipment. Their width should be less than the diameter of the screw part 3-6 cm.

Perform similar functions scrap metal, which is inserted into the openings of the support tube. It put on long stretches of pipe. These arms do not have the mobility in the vertical direction, so more difficult to work with them as compared to professional tooling.

Next, make a pruning unnecessary parts of pipes.

With the raft of metal U-sections can be used headroom or mortgage. The distance between piles is set less than 300 cm, so that the foundation is not shrunk.

The bottom is set so as to provide a bundle with the supports. Reinforcement metal fitting is performed with a diameter of 12 mm or more. during the pouring concrete using vibratory equipment to prevent the formation of voids.

Here necessarily set waterproofing, which would prevent the penetration of moisture into the house.

Eliminate harmful effects on the building (extension) of storm water through the blind area. Penetration of moisture into the drain will be intense if the pour sand or gravel circuit behind it. For ventilation space under the floor in the wall socket outlet is installed.

Repair screw foundation piles

Qualitative strengthening of support structures prolongs the service. If used to replace the screw piles, even the most complex engineering problems can be solved without extra costs. Below are some interesting solutions that will help to find out how to strengthen the house without injury.

Helpful information! The reconstruction can strengthen not only the contour but also the inner part of the frame.

How to close the base and improve the aesthetic characteristics of the structure, described in the final section of the article.

decoration

The installation of the foundation can be combined with insulation. This will improve the insulating properties of the building, will help reduce the cost of borrowing comfortable temperature conditions.

First batten fixed between the piles. It can be made of galvanized metal profiles, wooden beams. Suitable for covering ground siding, corrugated sheet. Inside fixed layer isolation.

Note! As the warm part of the structure, it is possible to find out with the help of instructions. It is better to use a polyurethane foam plates and other materials, non-absorbent.

When considering how to get rid of the plinth, remember to maintain good sealing between the base and the building. If the wall is used for the construction of concrete and other heavy materials, you must add the appropriate weight in the calculation of loads. If necessary - increase the diameter of the pillars, or reduce the step to install them.