Reinforcement frame for piles 3 or 4. Reinforcement of a columnar foundation on piles

From this article you will learn why reinforcement of driven reinforced concrete piles is needed. We will consider all types of reinforcement of reinforced concrete structures, get acquainted with the technology of industrial reinforcement of reinforced concrete piles and study in detail the calculation methodology and the sequence of work on reinforcing bored piles with our own hands.

Classification of driven reinforced concrete pilesused for the construction of foundations and foundations for buildings and technical structures is carried out not only based on the shape of the structure, but also depending on the method of reinforcement that was used in the production of the pile.

Pile pillars with longitudinal reinforcement are used for immersion in medium-dense soils - sandy loam, loam, clay soil. Such piles, due to the use of less reinforcement, are cheaper, but have low resistance to tensile and bending loads, which is sufficient for the construction of foundations for ground structures, but not enough for the construction of hydraulic structures.


Rice. 1.1:

  • The working surfaces of metal formwork are coated with a lubricant (Emulsol);
  • Reinforcement frames are placed in the compartments of the metal mold;



Rice. 1.8

  • The reinforcement is pre-tensioned with a hydraulic jack - first by 40% of the maximum force, then the position of the reinforcement is checked, after which the sides of the metal mold are closed;
  • The reinforcement is tensioned equal to the maximum design force. The rods are maintained under this load for 5 minutes;
  • The metal mold is filled with concrete mixture and the concrete is vibrated;
  • The time required for the concrete to set is maintained, after which the hydraulic jacks are turned off and the reinforcement is compressed to its original state;
  • The metal mold is placed in a steaming chamber, in which the concrete hardening process is significantly accelerated;
  • Using crane equipment, finished piles are removed from the metal mold.



Rice. 1.9

Reinforcement of bored piles

The calculation is made based on the following initial data:

  • Pile length - 150 cm;
  • Pile diameter - 300 mm;
  • The step between pile pillars is 1.5 meters;
  • The height of the pile pillar is 30 cm.
  • The perimeter of the foundation is 27 m.

The pile pillar will be strengthened using a reinforced frame consisting of four longitudinal reinforcing rods 180 cm long (150 cm for the part of the pillar located in the soil, and 30 cm for the outlet), connected by three turns (top, middle and bottom) of smooth reinforcement .


Rice. 2.0

  • 27/1.5 = 18 pcs.

Based on the fact that the length of the longitudinal reinforcement rod in the frame is 1.8 m, and there should be 4 such rods in total, we calculate the amount of reinforcement per frame:

  • 1.8*4 = 7.2 m.

Knowing the number of piles and the length of longitudinal reinforcement per frame, we can calculate the total length of the reinforcing bars:

  • 7.2*18 = 129.6 m.

To connect the longitudinal rods to each other, we need smooth reinforcement with a diameter of 7-8 mm. Based on the frame diameter of 300 mm, the length of one smooth reinforcement bar will be about 95 cm.

The number of connecting elements of the reinforced frame is 3 pcs. (bottom, middle and top). We determine the required length of smooth reinforcement for one frame:

  • 0.95*3 = 2.85 m.
  • 18*2.85 = 51.3 m.

Based on the calculations, we determined that to reinforce the bored piles we will need 130 meters of corrugated reinforcement and 52 meters of smooth rods.


Required tools and materials

Work on reinforcing bored piles does not require the use of any special construction equipment. The only thing you need is a welding machine and a grinder (for cutting reinforcing bars).

If you do not have a welding machine, you can use another type of connection - fixing the frame elements using a binding wire.


Rice. 2.1

All reinforced frames for piles produced in industrial conditions are fastened by welding, so there is no need to worry about welding joints. The only significant drawback of this method is the metal’s susceptibility to corrosion (at welding points), however, this problem can be eliminated by coating the reinforcement with a regular metal primer.


Rice. 2.2

And so, to create a reinforced frame for a bored pile with your own hands, you will need the following tools:

  • Bulgarian;
  • Welding machine;
  • Tape measure and pencil;
  • Paint brush.

Consumables include corrugated and smooth reinforcement rods, anti-corrosion primer and, if necessary, tie wire.


Sequence of work

The algorithm for creating a reinforced frame is as follows:

  • We prepare the reinforcement - we cut the corrugated and smooth rods into sections of the required length using a grinder. When working with this tool, we must not forget about safety precautions;
  • Then the smooth reinforcement is bent - mark four equal-sized sections on the rods, wedge it in a vice and, using a lever (an ordinary metal pipe put on the reinforcement will do), give the rod the required shape;


Rice. 2.3

  • After forming the fixing squares, we take two corrugated rods and place them parallel to each other on the working surface. The distance between the rods must correspond to the design dimensions of the reinforced frame;
  • We put pre-prepared squares on the longitudinal rods so that the rods are placed in the inner corners of the workpiece, and fix them using welding or knitting wire;
  • We turn the resulting structure over and weld the two remaining longitudinal rods;
  • We coat the reinforced frames with an anti-corrosion primer.
  • The bottom of the well drilled under the pile is covered with a layer of geotextile;
  • A compacting bedding 20 centimeters thick is placed on the surface of the geotextile: the first layer is sand, the second is crushed stone or gravel;
  • Then the formwork is placed in the well, into which concrete will subsequently be poured. The formwork is made from roofing felt, twisted into a cylinder of the required dimensions.

Rice. 2.4

  • A reinforced frame is installed in the formwork;
  • The last stage is concreting the pile. For pouring, a cement-sand mixture based on cement grades M300-M400 is used. After the formwork is filled with concrete to the required height, the concrete is bayoneted with reinforcement, this helps remove air cavities from the mixture.


Rice. 2.5

After pouring the bored pile, before proceeding with subsequent work, you need to wait the time necessary for the concrete to completely harden.

To drive most reinforced concrete piles, a wheeled pile driver is used. Thanks to its wheelbase, it is easily delivered to the work site and quickly fulfills the daily requirement.

Our services

The main services of the Bogatyr company are piling works and leader drilling. We have our own fleet of drilling and piling equipment and are ready to deliver piles to the site with their further immersion at the construction site. Prices for driving piles are presented on the page: prices for driving piles. To order work on driving reinforced concrete piles, leave a request:

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Almost all types of foundations require a reinforcement cage. This is a connection of rods in which a welding machine or special wire can be used. The frame can be assembled directly at the construction site or in a specialized workshop. Sometimes the base requires a frame made of non-metallic reinforcement. In this material we will consider in detail the types of this design, get acquainted with the positive aspects, and also analyze the calculation. Typically, a reinforcement cage is a mandatory requirement when constructing a bored pile foundation.

Detailed design manufacturing diagram. The image shows a prefabricated and monolithic columnar foundation.

The main task of the reinforcement frame is to ensure the strength of the future building. The design also increases resistance to mechanical stress.

Types of frames

Today, two types of reinforcement structures are used:

  1. Spatial (also called volumetric in construction).
  2. Flat.

The choice of reinforcement cage depends on the type of future structure. A suitable design can only be determined after the calculations have been completed. Both types are described in detail below.

Spatial (volumetric) structures

This type has quite a lot of purposes; it is used to create structures made of cage-type metal, for the construction of industrial facilities where pouring a large amount of cement mortar is required. Also, a reinforced volumetric frame is used in the construction of a foundation from, which you can study in detail in the diagram.

Typically, metal rods with a thickness of 8 and 12 millimeters are used to create spatial structures. By using these sizes, you can get different piles. If necessary, the diameter can be adjusted. Frames for bored piles are manufactured using special equipment, and automated welding lines are involved in the work.

Flat frames

The construction of this structure requires two or more layers of rods. The connection here is made using rods. The longitudinal reinforcing bars of the frame must be fastened with transverse, inclined or continuous bars. To find out what type of rods is needed for a particular structure, it is necessary to calculate the reinforcement frame.


Scheme for a foundation made of bored piles. Typically, a reinforced structure is used with this type of foundation.

The flat type is used in linear structures where it is necessary to increase strength. Also, flat reinforcement cages are used in different types of bases (slab, columnar, strip). This design helps to increase the strength of the future building.

Advantages

Reinforcement structures have many advantages that not only strengthen the future structure, but also simplify construction. The main advantages of the reinforcement cage are as follows:

  • a foundation reinforced with reinforcement can be built on any soil;
  • the cycle of construction work is significantly reduced - fewer workers are required;
  • production profitability increases;
  • increasing the speed of installation of reinforced concrete structures.

How is the calculation carried out?

To calculate the reinforcement frame, you need to know the parameters of the future building in advance. The main point is the type of base. If it has already been determined, then the number of rods can be calculated. Next, the diameter and class of the rods are determined.

Advice! For the slab base, only rods with a ribbed surface are used. As for the diameter, it must be at least 10 millimeters.

The diameter affects the strength of the entire frame; the thicker the rods are, the stronger the structure will be. To determine the thickness, you need to know the type of soil on which the structure will stand, as well as the weight of the future building. If the soil is dense, then different types of foundations can be used here, since the soil will practically not deform under loads from the building.


This image shows the process of making casing pipes for the construction of an industrial facility.

Calculation of wire for connecting reinforcement is carried out only when it is known how many rods are required for the frame. Where a vertical bar and two horizontal bars intersect, two wire connections are required. For example, there are 960 connection points in the lower and upper chords of the frame. For one connection you need 15 centimeters of wire, which is bent in half. As a result, the calculation will be as follows: 0.3x960x2=576.

In any case, the calculations should be carried out by a professional, even if we are talking about the private construction of bored piles, where the owner of the future house undertakes the production. If the calculation is performed incorrectly, then the future structure will not be strong, and as a result the house will quickly collapse.

How does the reinforcement work?

After calculating the number of rods and bored piles, you can begin reinforcement. Manufacturing proceeds as follows:



As you can see in the photo, the structure for a strip foundation is easier to build with your own hands.

To better master the material, we recommend that you familiarize yourself with videos and diagrams that show the process in detail. If you want to do construction yourself, then you should entrust the calculations to professionals from construction bureaus. The strength of the house, and therefore the safety of its residents, depends on correct calculations.

Frame of bored piles updated: February 26, 2018 by: zoomfund

Reinforcing cages for piles

Today in Russia, bored and drilled piles are becoming increasingly popular. They have long been used in the construction of objects on Western European construction sites, while prefabricated reinforced concrete ones are considered a relic of the past. The construction of modern facilities in megacities involves the use of new generation piles. In addition, on many domestic construction sites, the use of simple driven piles is prohibited or limited. Bored and drilled injection piles are materials that combine impeccable quality and efficiency. In “anthill” cities with high building density, they reveal their best qualities. The production of these piles is subject to special requirements for the strength of the reinforcement frames, on which the reliability and service life of each object depend. The construction of buildings is far from the only area of ​​application for bored and drilled piles. They are used in road construction and to strengthen concrete. Modern piles greatly reduce the risk of deflection and minimize the possibility of cracks appearing on the sheet. The production of these two types of piles has a number of advantages over the production of precast concrete piles. These are: - compliance with all construction standards and strict adherence to the wishes of the customer; - mobility; - the ability to reduce the weight of the structure and increase its strength. Ready-made piles are very easy to install - they practically eliminate the occurrence of shocks and vibrations. Using them in construction, you will significantly reduce the time required to carry out work, you will be able to save on soil removal and cleaning, and generally reduce the cost of your project. Moreover, this will in no way affect the quality of work. At TSK Industry + LLC you can order high-quality bored and drilled injection piles with a diameter in the range of 200-1000 mm. Their price will be determined by the size and volume of the order.

Production of reinforcement cages for piles

The production of reinforcement cages for piles is based on a method in which load-bearing rods are welded to reinforcement wound in a spiral. Advanced technologies help achieve the highest quality welding work, significantly increase productivity and obtain a frame with the most accurate shape. All stages of work are regulated in detail by existing standards. Reinforcing cages are produced from four main materials: - corrugated coil reinforcement with a diameter of six to 12 mm; - corrugated or smooth reinforcing bars; - hot-rolled smooth wire rod; - VP-1 wires. Thanks to the improved technology for manufacturing reinforcement frames for piles, the installation of reinforced concrete structures is much simplified and takes place in a timely manner, and reinforcement waste during the work is minimized. TSK Industry + LLC offers reinforcement frames for piles in an optimal price-quality ratio. When placing an order, you can be sure that you are purchasing products that fully meet the requirements of GOST standards. In addition, the production of each pile is controlled by the manufacturers at all stages.

Features of classic pile frames

Reinforcement frames for piles are understood as structures made from reinforcement and completely or partially repeating the shape of a concrete product. The basis for them is reinforcement of various diameters. Depending on the type of connection, the frames can be welded or knitted. Based on their shape, they are divided into flat (so-called reinforcement mesh) and spatial. Reinforced concrete products can differ in reinforcement density, that is, in the amount of reinforcement they contain. When calculating density, two indicators are taken: the weight of the reinforcement itself and the weight of the concrete of which it is a part. For reinforced concrete structures of increased strength, a density of at least five hundred to six hundred kg/cubic meter is required.

Structure and features of production of frames for piles

As we have already mentioned, reinforcing cages are made from reinforcing bars - smooth and corrugated, hot-rolled and smooth wire rod, wire of the VR-1 series, as well as corrugated coiled reinforcement with a diameter of at least six and no more than 12 mm. The production cycle includes welding reinforcing bars that perform a load-bearing function with reinforcement that is wound in a spiral. Today, manufacturers produce products that are completely free of deviations in geometry. Depending on the type, the finished frames are marked with appropriate paint. Each product is also supplied with a marking tag.

Production of frames for bored piles

Frames for bored piles belong to the class of staple-bending products. They are in great demand in the manufacture of reinforced concrete products and in the installation of reinforced concrete structures. The frame production process is fully automated. A key role in it is played by the welding of load-bearing reinforcing bars with the reinforcement that is wound on them according to the spiral principle. The main task of the unit, designed for creating large-sized reinforcement cages, is to produce a spiral automatically. Reinforcing wire is used as the material for it. The wire is wound step by step, in a given mode, onto the longitudinal reinforcement bars, which are already placed in the equipment by the time work begins. When producing reinforcement frames for piles, it is important to achieve geometrically correct proportions - both for the structure as a whole and for its individual components. Only then will a product be obtained that is completely ready for use. By the way, the bored pile itself is “born” not in production, but in the ground. The finished reinforcement frame is immersed in a hole drilled in the soil, which is then filled with concrete. When the composition hardens, a ready-made pile is formed in the soil, capable of withstanding any strength tests. So the name of this type of piles is fully justified by the technological process.

What are the benefits of ordering from us?

By collaborating with TSK Industry + LLC, you receive several advantages at once. This:

The ability to order a frame with standard dimensions or a product according to your individual drawings;
- growth in labor productivity;
- increasing production profitability;
- maximum waste reduction.

By ordering reinforcement cages for piles from us, you provide your production with a universal material suitable for the construction of any objects - from civil to industrial. Bored piles are suitable for installation in any soil, except rocky and coarse soils.

Production of reinforcement cages for piles is one of the most important stages of foundation construction. The bearing capacity of the supporting structure on piles of any type depends on the correct calculation of the parameters of the reinforcement section and the pitch of its laying. Any error at the stage of linking or welding individual elements will lead to a deterioration in the performance of the structure.

Of course, with small amounts of work, it is quite possible to make a reinforced frame yourself, but on an industrial scale it is advisable to buy reinforcement cages for piles, manufactured in industrial conditions.

Types of reinforcing frames

All pile frames are volumetric structures. They may differ in cross-sectional configuration, but they all have a similar design.

  • Longitudinal bars made of periodic cross-section reinforcement that bear the main load.
  • Transverse reinforcement (smooth or corrugated), strapping using clamps or spiral winding of wire rod.

The main elements are connected to each other using lashing or welding; the production of frames for piles allows for both of these options.

By their cross-section, you can distinguish between round or prismatic reinforced frames; this is due to the round cross-section of the pile itself. It is this form that makes it possible to strengthen the entire volume of the supporting structure.

Manufacturing of reinforcement cages for piles - existing technologies

There are two main technologies used on construction sites and in production conditions:

  1. Manual assembly of the reinforced frame allows you to produce a product with almost unlimited parameters. Any cross-section of reinforcement, length of the product and its diameter. The design has high strength and build quality. The only drawback of the method is its low productivity; in addition, manufacturing requires significant labor costs.
  2. Mechanized automatic assembly of reinforced frames. Product parameters depend on the type of equipment used. But, in most cases, frames of this type can be used for almost any construction. The technology involves spiral winding of wire around fixed rods of the main reinforcement. The elements are connected using resistance welding. This technology is particularly appropriate if the production of frames for piles is required to support large-scale construction.

Features of application and pricing

Depending on the technical solution (project), bored piles can be reinforced partially or along the entire length. After installing the frame into the prepared well, the body of the well is filled with concrete mixture.

The cost of the frame depends on the parameters of the reinforcement used, the cross-section and length of the product. When ordering a large volume of products, you can get a significant discount.

Our company produces reinforcement frames for piles using all technologies. We are ready to ensure the production of products with any parameters, in accordance with the provided technical specifications.

To order a reinforced frame for piles of any type, leave a request directly on our website, or call our expert. We will answer any questions and are ready to discuss individual terms of cooperation.

Driven pile foundation- a type of foundation in which the immersion of pile pillars is carried out without first removing soil for installation. The classic installation method is hammering piles. For this purpose, special piling equipment is used - hydraulic, steam-air or diesel hammers. In some cases, other methods are used to drive piles. These include installation by vibration and indentation. The ground part of the piles is fastened with a grillage.

Ready-made pile pillars, using special equipment, are driven into the ground to the required depth.

Made during foundation construction. At the installation sites, a well is drilled to the immersion depth of the future pile. Then reinforcement is installed in the well, after which the hole is filled with cement mortar. Sometimes, when constructing a foundation on unstable soils, for additional reliability, a metal pipe is placed in the well and only then concreting is carried out.

Advantages and disadvantages of a driven pile foundation

Operational features, as well as advantages and disadvantages, depend primarily on the material and manufacturing technology of the piles. But there are also common characteristics.

Advantages of a driven foundation

  1. Possess high strength and are able to withstand heavy loads, especially foundations on reinforced concrete piles.
  2. Foundation installation does not require serious site preparation and extensive earthworks.
  3. Perfect suitable for flooded areas, since it is possible to raise the house above the flood level.
  4. Installation work, despite the labor intensity, is carried out in short time.
  5. When constructing a driven foundation, the soil does not loosen, but on the contrary, it is compacted, thereby increasing the reliability and stability of the structure.
  6. Loads on the foundation are transferred to deep dense soils. This increases the bearing capacity of the base.

Flaws

  1. The need to involve special equipment.
  2. There may be difficulties with the equipment of the basement.
  3. Foundation not reliable enough on swelling and subsidence soils.
  4. Possible uneven shrinkage foundation. The reason may be differences in soil density and different loads on the piles.

Classification of driven piles

By section type pillars are:

  • whole;
  • tubular (the diameter of which does not exceed 80 cm and which have a soil core);
  • H-shaped;
  • with closed end.

According to the material of manufacture can be:

  • made of wood;
  • of steel;
  • reinforced concrete.

Features of a wooden driven foundation

Wooden driven piles are used in cases where the base of the foundation is located below the groundwater table.

To make pile posts, resinous and rot-resistant tree species are used - pine, oak, spruce, tansy, cedar, etc.

Wooden piles most often have a cross-sectional width of 25 to 30 cm, and immersion in the soil can reach 12 meters. The end that plunges into the soil must be pointed. If the foundation is being built on dense soil, a steel cap is placed on the pointed end. The ground part of the pole is decorated with a head or steel yoke.

There are three types of driven wooden piles.

  1. Singles. Classic wooden posts that are mounted one at a time.
  2. Batch. A pile consists of several beams (usually 3 or 4 pieces) placed together.
  3. Piles from laminated veneer lumber. The main advantage of this type is the ability to make a pile pillar of any length. The manufacturing technology of laminated veneer lumber involves gluing dried and planed boards. Bio- and water-resistant adhesives are used for work, which increases the durability and performance characteristics of the product.

The wooden post must be buried to a depth of at least 1.2 meters. The level of soil freezing must be taken into account - the pile is immersed below it by at least 0.5 m.

Advantages and disadvantages of a wooden driven foundation

The main disadvantage of such a base is the susceptibility of wood to decay. Regularly changing moisture levels in the soil significantly shorten the life of timber piles.

The advantages of wooden bases include:

  • environmental friendliness;
  • the ability to restore previous properties after some pressure;
  • ease of installation;
  • low cost.

Features of a driven foundation on reinforced concrete piles

Reinforced concrete piles come in two types - solid and hollow. Hollow ones are made using a centrifuge, are most often round in shape and are used in the construction of one-story buildings. Not suitable for building foundations in seismically active zones or peat soils. Unlike solid ones, hollow pile pillars have less weight, which greatly simplifies working with them.

Marking of reinforced concrete piles in accordance with GOST

  • « WITH» - pillars with transverse reinforcement.
  • « SK» - round piles with a cavity.
  • « JV» - the pillars are square in shape and have a round cavity, thereby reducing their weight. Reinforced using both prestressed and conventional methods.
  • « SG» - rectangular piles made of heavy concrete. Due to the increase in cross-sectional area, they have a greater load-bearing capacity than square ones.
  • « SC» - piles with a square cross-section without transverse reinforcement.
  • « 1SD» - columnar piles.
  • « 2SD» - columnar piles designed for installation along the middle axes.
  • « CCH», « NNE» - composite pile pillars.

Solid reinforced concrete piles

Solid piles come in several shapes - H-shaped, round, square or rectangular configuration.

Features of reinforcement

Hydraulic concrete and steel reinforcement are used for production. Reinforcement can be either ordinary or tension.

The peculiarity of reinforcement using prestressed reinforcement is that the metal element, before being concreted, is stretched using a jack or other device.

Also, tension can be increased by using electricity - a huge current is passed through the armature, which leads to heating of the metal and it expands. The reinforcement is fixed in this state throughout the entire cycle of concreting the pile.

After the concrete hardens, the voltage is removed from the metal element - the current supply is stopped or the fixation with the jack is weakened. This method increases the strength of the product.

Tension arises between concrete and metal, as the metal element tries to compress, and the concrete, to maintain its position, tries to stretch the metal to its previous state. This makes it possible to partially pull the reinforcing element at the bend and increase the strength of the entire structure.

Depending on the position, piles are reinforced in two ways.

  1. Longitudinal reinforcement. It is the main working armature.
  2. Transverse reinforcement. Its purpose is to combine the longitudinal reinforcement and absorb the impact load during the pile driving process.

The use of a driven reinforced concrete foundation

Reinforced concrete pile foundation is the most common type of foundation. It is used for:

  • construction of private houses;
  • construction of industrial buildings and structures;
  • construction of high-rise and low-rise buildings;
  • for buildings made of brick, wood, aerated concrete, foam blocks and other materials;
  • as a foundation for frame houses, garages, gazebos and other outbuildings.

Features of reinforced concrete foundation

  1. Concrete piles have high strength and endurance. According to GOST, the strength of a concrete pillar must be at least 200 kgf/cm2. The minimum weight that a pile can support is 125 tons.
  2. Concrete is prone to destruction in unfavorable environments - soils with a high content of chlorides, calcium, sulfates and other mineral salts and alkalis.
  3. The large weight of reinforced concrete piles makes transportation and installation difficult.
  4. The use of one type of pile or another for the foundation depends, first of all, on on soil characteristics.
Selection of the type of reinforced concrete base for the soil
  • Pile columns of stressed reinforcement are used for installation in soils of medium density.
  • Piles of conventional reinforcement - for installation on sandy and clay soils.
  • Pile columns of longitudinal unstressed reinforcement - on soils prone to compression, without clay and boulders.
  • Columnar piles are used on clay and medium-density soils.
  • Round hollow-section piles - for one-story buildings on stable soils.

Steel driven piles

They are made from various profiles - channels, pipes, etc. The lengths are divided into short, long and compound.

They are used for foundations for any buildings, both private and special purpose, and are also used in cases where it is not possible to build a foundation on reinforced concrete piles.

By design, steel piles are:

  • root-shaped;
  • conical;
  • anchor;
  • columns.

Most often, conical piles are used in the construction of driven foundations.

Advantages and disadvantages of foundations on steel piles

Steel pile foundations can be built in difficult geological conditions, such as high-density soils.

TO main advantages relate:

  1. Light weight.
  2. Possibility of installation at a depth of up to 90 m.
  3. Possibility of building a foundation year-round.
  4. Long service life.

The disadvantage of a foundation on metal piles is its susceptibility to corrosion. The foundation can collapse in a very short time if the construction technique is incorrect, the operating environment is highly aggressive and the anti-corrosion coating is of poor quality.

Stages of construction of a driven pile foundation

Before proceeding with the installation of the foundation, it is necessary to calculate the necessary parameters and draw up a design for the building and the foundation itself, taking into account the weight, layout and other features of the future construction.

Several factors are taken into account during the design.

Soil features.

  • depth of groundwater;
  • aggressiveness of the environment;
  • soil flooding level, etc.

The weight that the foundation will have to support.

  • the mass of the structure itself;
  • weight of the roof, attic floor, etc.

Pile locations. The piles are located:

  • at each corner along the outer perimeter;
  • at the intersections of internal walls and the joints of external and internal walls;
  • additional piles are located around the perimeter of the building and interior spaces, the distance between piles should be no more than 3 meters.

Installation process

Driving piles is the main installation stage in the construction of this type of foundation.

Stage 1. Preparatory.

Before starting installation work, the area is prepared, groundwater is drained and a pit is dug. The territory is marked, the places where the piles are to be installed are marked with pegs.

Stage 2. Driving piles.

The piles are lifted using special equipment and installed in designated areas. The pillars are then driven into the ground using a pile driver.

Stage 3. Alignment.

Installed piles are checked for deviations and trimmed to the required level.

Stage 4. Grillage equipment.

The ground part of the pile pillars is connected by a grillage, most often concrete. For its installation, formwork is installed, reinforcement and concreting are carried out. Also, the grillage can be made of wooden beams or metal, depending on the material used to make the piles.

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