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Foundation Tise drilling technology. Foundation using Tise technology - features, advantages and calculations Calculation of grillage for Tise foundation

TISE foundation is a unique, universal and economical system for constructing the foundation of a building. Thanks to its advantages, it has now found wide application not only in low-rise construction, but also in the construction of permanent structures on different types of soil. Even if the house is planned to be built on heaving soils, TISE technology remains the best option in this case. A foundation based on it will never lose its original technical characteristics and will retain its original value for a long time, thereby preserving the integrity of the entire building.

The TISE foundation is a universal foundation. TISE technology provides a special support system, which is based on the use of piles. They have a hemispherical extension at the end. They are responsible for the stability of the foundation of the house under the influence of various loads and movement of soil masses. Such piles can be installed using a TISE drill equipped with a mounted plow and a soil accumulator. It makes holes in the ground with a diameter of up to 25 cm with a spherical hole at the end, with a diameter of 40 cm to 60 cm.

The supports, depending on the expected loads (the latter are installed using special calculations), are located in increments of 1.5 m-2 m. Each of them can withstand up to 16 tons of loads.

Advantages of this type of foundation

The universal foundation of TISE and its advantages:

economical consumption of building materials, compared to other types of foundations for a house under the same conditions;
If you want to speed up the progress of construction work, take the TISE foundation as the basis of the house. Reviews indicate a fairly high speed of construction of this structure, thanks to the use of a special drill and a reduction in the volume of excavation work;
If you care about the durability of the house, again you need to use the TISE foundation. Photos of the building on which this foundation was based indicate the integrity of the structure throughout the entire period of its operation;
a foundation using TISE technology, the organization video of which will greatly simplify the process itself, involves the simultaneous construction of grooves and niches, which cannot be done with a block base.

Do not forget that the TISE columnar foundation is a unique variation of the usual columnar analogue. However, here the first type has significant advantages over the second. So, when organizing a regular columnar base, the house should be unloaded onto it immediately. Otherwise, within a year the soil will simply push out the installed pillars. For a design using TISE technology, this will never happen. The TISE pile foundation does not involve the use of heavy special equipment to drive reinforcement into the ground.

Disadvantages of this foundation

TISE foundation disadvantages:

before organizing the structure, an accurate calculation is carried out, errors in which lead to undesirable consequences in practice;
the base receives cold, and therefore its increased thermal insulation is assumed;
the TISE foundation adopts its disadvantages from similar structures - a columnar foundation or a pile-strip foundation;
construction of foundations using TISE technology involves the use of semi-dry mixtures.

Consequently, the requirements for the quality and degree of purification of the components of the semi-dry component are increasing.
When deciding whether to use a foundation using TISE technology, reviews with negative aspects will serve the builder well. They will point out to him the problematic aspects of the design, and this will contribute to their correct elimination.

Norms and calculations of the TISE foundation

First of all, the calculation of the TISE foundation is carried out according to the standards prescribed in and. This takes into account the specific gravity of all building materials that take part in the construction of the building. The necessary data can be found in. We should not forget about the loads carried by household appliances and interior items. So, according to established standards, per square meter. living area accounts for 200 kg of load. For an attic space you should take 100 kg per 1 square meter.

An experienced builder, before starting to calculate the load-bearing capacity of the foundation for a building, will also take into account the snow loads that may occur during the cold season. They are individual for each region of the country.

The load-bearing capacity of piles under the TISE foundation, a video of the construction of which is now offered for viewing by leading construction experts, can be calculated using an excerpt from about foundations and foundation structures.

Conclusion

So, the TISE foundation is a universal structure that can be used on different types of soil and for the construction of buildings of various weights. Numerous advantages more than cover the insignificant list of disadvantages of this building base. The latter can be easily eliminated. If you need to save money, but at the same time not lose on the quality of the foundation for your house, use the TISE foundation. The price for the construction of this structure is significantly lower compared to similar columnar, pile and strip structures.

The TISE foundation costs two to three times less than other options, and the low cost in no way affects its quality and safety.

Individual construction in the country is developing rapidly. Developers with a good cash reserve build their own houses, caring only about their reliability - they care little about the cost of this enterprise.

Another thing is people with modest capabilities. They have to carefully calculate costs at each stage of construction. It is for this category of developers that TISE has developed a unique technology that allows them to build an inexpensive but reliable foundation for housing.

So, what is the foundation of TISE? This is a pile-tape structure consisting of reinforced concrete supports and a reinforced concrete grillage ().

The peculiarity of this design lies in the shape of the pile: in its lower part there is a hemispherical extension. This form of support helps to increase the bearing capacity of the foundation and prevents it from being squeezed out on heaving soils.

TISE piles bear the load of heavy stone and light frame houses equally well (), without shrinking.

The purpose of the grillage is to connect all the supports into a single structure. It does not contact the ground, evenly distributing the load from the house between the piles.

Advantages and disadvantages

The advantages of the TISE type foundation include:

low cost;
no need to use heavy construction equipment;
autonomy of work during construction: to perform technological operations, no connection is required;
high speed of construction and minimal labor costs;
the possibility of independent construction by individual developers who do not have experience or special skills;
ease of installation of utilities even at a fully constructed facility.

Disadvantages of TISE foundation technology:

this construction method cannot be used in swampy areas, waterlogged and silty soils;
using only manual labor: this makes the construction process very difficult on rocky and hard soils. True, they have now begun to produce TISE drills with a mechanical drive powered by a light gasoline engine;
it is not possible to build a basement under the entire house;
a blind area of increased width is required.

The above disadvantages of the TISE foundation are offset by advantages, so this technology can be considered the most economical and progressive for private construction.

The main and only working tool that you will need when building a foundation using TISE technology with your own hands is the TISE-F drill.

Structurally, it is made in the form of a sliding rod, equipped with two handles and cutting edges. Its weight is only 7.5 kg. The tool is equipped with cutters and a locking mechanism. The plow is lifted by means of a cord, one of the ends of which is attached to the crossbar.

The rod can be extended to any length using a threaded lock. It also transmits torque.

The plow is mounted on a movable bracket between the drill and the rod. It is released at the drilling level where the expansion of the TIS pile is planned. The role of a soil accumulator is played by the drill body.

Drilling technology

Drilling using TISE foundation technology consists of several simple operations:

The piles are being marked.
At the drilling sites, the turf is removed.
A hole is dug exactly in the center of the future pile with a diameter equal to the diameter of the drill and a depth of 0.15 m. This operation can be performed using a shovel or a special device included with the drill.
The plow is removed from the bar, and a handle is installed on its upper part.
The initial length of the rod is set (for this there are three holes in its body).
The kit also includes an extension cord. If it needs to be used, it is mounted on a bar instead of a handle. The latter is transferred to the end of the extension cord.
During the drilling process, the soil is collected in a container. As it fills, the storage tank is lifted and released from the ground.

Piles using TISE technology have a small diameter, so it is necessary to carefully control the verticality of the well: concrete does not bend well, and if it deviates from normal, it may burst during operation.

After reaching the design mark, the well is expanded in its lower part.

This is done like this:

two bolts on the container are unscrewed;
The plow is installed and secured: first read the instructions for the drill. There you will see that there are three installation positions for this part - depending on the size of the extension (400, 500, 600 mm);
a cord is attached to the bracket (crossbar), by means of which the plow is raised to the transport position;
after the plow is lowered into the hole, the cord is released - the tool takes its working position;
the drill is rotated counterclockwise, cutting out a hemisphere in the ground.

It is more convenient to build TISE piles with a partner.

Foundation calculation

Before starting practical work, you need to find out how many supports can withstand the load from your building.

Foundation calculations using TISE technology are performed according to the classical scheme:

the total load from the building is calculated (it is the sum of the weight of all building materials, wind and snow loads);
The bearing capacity of one bored pile is determined: it is better to entrust this part of the calculation to specialists, for example, from the architectural department of the city administration. They will ask you for the cadastral number of your plot, check the data of geological research in the area in the register - and, using just one formula, they will quickly make a calculation;
divide the load by the load-bearing capacity of the pile - and you will determine their number.

Now all you have to do is place the supports on the foundation plan. Placement of piles should begin from the corners of the building and the intersections of walls. Distribute the remaining supports evenly around the entire perimeter of the foundation. After that, all you have to do is take the markings to the area.

Pouring piles

To fill the supports, concrete grade M300 () is used. Crushed stone fraction – no more than 25 mm.

Along the axes of the well, install four reinforcing bars A-4 with a diameter of 14 mm. Their length should exceed the depth of the hole by 15-20 cm. After this, pour concrete into the well, periodically compacting it with an internal vibrator. If you don't have such equipment, use a long stick. The purpose of the operation is to eliminate the possibility of voids forming in the concrete mass.

Immediately after pouring, the pile head is concreted. You can use a large diameter plastic pipe.

Rules for grillage construction

When building a foundation using TISE technology, you should not make the grillage too high. A massive monolith will become an additional burden on the piles and on the developer’s wallet.

A technically unjustified increase in the consumption of expensive concrete will negate the main advantage of the TISE pile-grillage foundation - low cost. The width of the reinforced concrete belt must correspond to the thickness of the wall. If in the future you plan to cover the house with bricks, take this into account when determining the width of the grillage.

Before installing the formwork, make a cast-off - use cords to mark all the axes of the future structure (). This must be done because when drilling and pouring pile supports, their exact axial location is difficult to maintain. But the grillage must be made in compliance with the perpendicularity and parallelism of all its sides. Otherwise, the walls of the house will rise at random.

The grillage is reinforced at the bottom. The reinforcing mesh must be connected to the rods released from the pile heads. The pouring should be done at one time - there should be no seams in the reinforced concrete body.

Video about the foundation of TISE.

One type of pile or pile-grillage foundation is the TISE foundation. Its main difference is that at the end of the pile there is a hemispherical (dome-shaped) thickening. This form allows the use of pile foundations on heaving soils, while the volume of excavation work remains very small.

The main disadvantage of the classic pile foundation is that with severe heaving, the support can simply be pushed out. But since the idea itself is very attractive - it can be built quickly with a minimum of costs - on difficult soils they began to make a base at the bottom of the pile - a rectangular reinforced plate. But with this option, the volume of land work immediately increased significantly: for each pile it is necessary to dig a pit larger than the planned base. But the building stands normally even on soils with severe frost heaving.

The pile foundation using TISE technology has a dome-shaped thickening at the base of each support

Under piles made using TISE technology create a similar thickening. But there is no need to dig pits. This extension is formed using a special knife, which is attached to a proprietary drill. This knife forms the extended dome. Further, the entire technology almost exactly repeats the process of constructing a pile or pile-grillage foundation.

Previously, expansions were also practiced, but they tried to do them using micro-explosions or by picking with a blade on a long pole. The main innovation in TISE technology is a drill with an opening adjustable blade. With its help, it is much easier to expand the sole.

How to work with a TISE drill

Advantages and disadvantages

TISE foundations are quickly gaining popularity: with minimal additional costs, a more reliable foundation is obtained. So, its advantages:

increased resistance to heaving forces;
the load from the house is transferred to a larger area, which reduces the possibility of uneven subsidence;
low cost with good characteristics;
can be designed for houses made of different materials, up to 3 floors in height;
small amount of land work.

The procedure for making a TISE pile

If a pile or pile-grillage foundation is recommended for your house, it makes sense to make TISE piles. With a small increase in workload, you get a significant increase in reliability. After all, designers do not like pile foundations because it is impossible to find out what kind of soil is under each support. Therefore, it is impossible to predict how reliable and stable the foundation will be. And the TISE foundation has a wider support, which reduces risks. As before, nothing can be predicted, but a large area of load distribution is always good.

However, there are also disadvantages. The main thing: the heel of a TISE pile cannot be well reinforced. You can lower the reinforcement cage to the very bottom, but expansion cannot be reinforced. Therefore, there remains the possibility that this thickening will collapse.

TISE piles - the basis of the TISE pile-grillage foundation

There is one more drawback, but this is from the practice of using a drill: it is not easy for them to work. The design itself is interesting. This is not a blade wrapped around a rod, but some kind of container with a composite bottom. Four blades set at an angle are welded on the plates that form the bottom. When you spin the drill, they loosen the soil. Since the bottom is not solid, the soil gets into the body, from where it needs to be removed.

The order of work is as follows: rotate the drill several times around its axis, take it out, and shake out the soil. They lowered it into the hole again, turned it several times, etc. The technology is not complicated, but the work is tedious. The device itself weighs 7-9 kg, plus soil. It needs to be raised and lowered frequently. Overall, it's tiring. Plus - no mechanisms are needed. The downside is that the work is not easy physically. Especially if the soil is rocky or dense clay.

Where can I use it?

There are no restrictions on the types and materials of buildings: you can make a TISE foundation for wooden, frame, brick and block buildings. Number of storeys - up to three.

The restrictions on soils are the same as when using pile foundations: it is necessary that the piles transfer the load to the soil with normal bearing capacity. To decide whether it is possible or not to use TISE, a geological study of the site in the place where construction is planned is necessary.

What does a TISE pile consist of?

Since the base of the pile is expanded and the resistance to buoyancy forces is greater, this technology can be used on heaving soils. But at the same time you need to consider: there is no point in placing piles closer than 1.5 meters. If placed closer, one extension of the sole will overlap the other. On the other hand, you can’t make a pile diameter larger than 30 cm either - there is no such drill. If the load-bearing area with such parameters is not enough, you need to use a different type of foundation.

Calculation of the TISE foundation

The calculation method is no different from the calculation in the general case. The load from the house is calculated and then compared with the total load-bearing capacity of the planned number and diameter of piles.

First, place the piles on the house plan. They must be in the corners and at the junctions of the walls. If the distance between the piles is more than 3 meters, intermediate ones are placed between them. So you place all the supports on the plan, adhering to the rule:

minimum distance - 1.5 meters;
maximum 3 m.

Then calculate the load from the house. To do this, you first need to calculate the weight of the house (all building materials + furniture, plumbing, heavy household appliances).

Average loads from different types of house components

Speaking on average, for buildings made of brick or shell rock, 2400 kg can be taken for each square of area, for light building blocks (foam concrete, aerated concrete, etc.) - 2000 kg, for wood and frames - 1800 kg. These average standards can be used as a preliminary guide. If you decide to take everything seriously, you will need to follow the entire methodology: counting materials of walls, ceilings, roofing, finishing, etc. Since the technologies and materials used may be different, the discrepancies can also be significant.

We multiply the resulting value by a correction factor - 1.3 or 1.4. This is a safety margin. The resulting figure is the load that will need to be transferred through the piles.

Now, using the table, you select what diameter the pile should have so that it can transfer the required weight.

Load-bearing capacity of piles of different diameters in different soils

If the planned number of columns with an expansion of the selected diameter can transfer the required load, you do not need to redo anything. If the transferred mass is too small, it is necessary to either increase the number of piles or make a “heel” of a larger diameter.

TISE foundation: work order

The piles should be buried approximately 20 cm below the freezing level for the region.
To reinforce the pile, four rods of ribbed reinforcement with a diameter of 10-12 mm are used. The rods should be placed no closer than 4 cm from the edge.
If the slope of the site is more than 10%, the release of the reinforcement must be connected to the grillage.
Either use a high grillage - raised 150 mm above the ground, or make a pile-strip foundation with a shallowly buried strip. The second option is used for heavy buildings, the weight of which cannot be transferred through piles; then a tape is made that increases the transfer area.

Scheme of reinforcement of a pile-grillage foundation with a reinforced concrete grillage (pile-strip)

TISE foundation is a subtype of pile-grillage foundation. And the technology for its production is no different. The whole difference is in the drilling process. No others. The work procedure and technology for manufacturing a pile-rosvet foundation are described here. And in this article we’ll better give some practical advice.

Difficulties during drilling

If the soil is very loose - fine sand - the walls of the well may crumble. To prevent this from happening, add water. The sand will compact and hold its shape. Water will also help if the soil is very dry and dense. After drilling a few tens of centimeters, fill the well with water. It will soften the soil, it can be chopped with a shovel or other device, and then removed with a drill.

Drilling wells for the TISE foundation with your own hands is not easy, but it is possible even alone

Difficulties are created by the powerful roots of trees and bushes. They need to be chopped. To do this, the ax handle is welded (attached) to the handle. By sharply lowering it into the hole, the roots are crushed.

How to create an extension

After reaching the design depth of the well, a plow is attached to the drill. It can be fixed in two positions: to form a heel of 50 or 60 cm. The plow is tied to a rope.

This is a plow that forms a dome-shaped extension

You lower the drill down, the rope is taut, the plow is pressed. The rope is released, and he falls down under his own weight. You start to rotate (it’s hard - the cutting surface is large), the blade cuts the soil, forming a thickening.

You can rotate both clockwise and counterclockwise. If clockwise, then try not to press down: there is no need to go deeper. When rotating counterclockwise, only the soil is cut without deepening, but another problem arises: the soil is poured under the drill, pushing it upward.

The optimal order of work is as follows: scroll counterclockwise several times. As soon as you feel that the blade has rested against the arch, make a few turns clockwise, collecting cut soil into the drill body. Take out the drill and pour out the soil. Repeat several times until an extension is formed (the soil stops building up).

On hard soils, working with the plow open can be problematic. Then you can create the expansion in stages. First set the plow to the smallest distance, then increase it to the desired size.

Filling with concrete

If the groundwater level is low, no problems arise: fill it in and treat it with a vibrator. All.

If the groundwater level is high, the heel can be filled immediately after it has been formed. You will only need to insert the reinforcement. Then you knit it before drilling begins. Filling the main part of the well can be left “for later”.

Having placed the reinforcement and formwork, they begin to pour concrete

If there is a lot of water and it comes quickly, you will need a large bag made of thick film with a hole at the bottom. You insert it into the well and pour concrete. Because it is denser, it displaces water. Having filled the heel, pull out the bag. It will be useful for the next piles.

TISE foundation: we build with our own hands, technology, working with a drill

The TISE foundation is considered one of the cheapest and at the same time reliable. This is a subtype of pile-grillage foundation with piles of an original design: with a vaulted extension at the base.

Is the foundation of TISE. Its main difference is that at the end of the pile there is a hemispherical (dome-shaped) thickening. This form allows the use of pile foundations on heaving soils, while the volume of excavation work remains very small.

TISE piles

Advantages and disadvantages

TISE foundations are quickly gaining popularity: with minimal additional costs, a more reliable foundation is obtained. So, its advantages:

TISE piles are the basis of the TISE pile-grillage foundation

The order of work is as follows: rotate the drill several times around its axis, take it out, and shake out the soil. They lowered it into the hole again, turned it several times, etc. The technology is not complicated, but the work is tedious. The device itself weighs 7-9 kg, plus soil. It needs to be raised and lowered frequently. Overall, it's tiring. Plus, no mechanisms are needed. The downside is that the work is not easy physically. Especially if the soil is rocky or dense clay.

Where can I use it?

There are no restrictions on the types and materials of buildings: you can make a TISE foundation for wooden, frame, brick and block buildings. Number of storeys - up to three.

Since the base of the pile is expanded and the resistance to buoyancy forces is greater, this technology can be used on heaving soils. But at the same time you need to consider: there is no point in placing piles closer than 1.5 meters. If placed closer, one extension of the sole will overlap the other. On the other hand, you can’t make a pile larger than 30 cm in diameter either - there is no such drill. If the load-bearing area with such parameters is not enough, you need to use a different type of foundation.

Reviews of the branded drill

The main questions for developers are related to how realistic it is to drill wells manually using a proprietary drill. Looking at the video, it seems that this task is not easy. But here are some reviews.

The soil on my site is different: some are loam, some are dense clay, and such that you can only chop them with an axe. At first I thought about renting a motor drill, but I decided to try it straight away with a drill. And nothing, not very hard. As a result, I decided that a motor drill would not speed up the process much, so I made all 40 pieces by hand. During the day, 5-6 2-meter wells were produced. They drilled easily, but with expansion it was difficult: I already had dense soil there, and it was difficult to turn with the blade open.

Oleg, Kharkov

I modified the TISE drill I bought: I welded additional teeth, instead of a rope that opens the blade, I adapted a rod - now you can put pressure on it, and not just pull. And most importantly, I lengthened the handle so that two people could turn it. While they were drilling the extensions, they twisted it 90°, but the work became much easier. In general, I'm pleased.

Nikolay, Krasnoyarsk

Calculation of the TISE foundation

minimum distance - 1.5 meters;
maximum 3 m.

Then calculate the load from the house. To do this, you first need to calculate the weight of the house (all building materials + furniture, plumbing, heavy household appliances).

We multiply the resulting value by a correction factor - 1.3 or 1.4. This is a safety margin. The resulting figure is the load that will need to be transferred through the piles.

Now, using the table, you select what diameter the pile should have so that it can transfer the required weight.

TISE foundation: work order

TISE foundation is a subtype of pile-grillage foundation. And the technology for its production is no different. The whole difference is in the drilling process. No others. . And in this article we’ll better give some practical advice.

Difficulties during drilling

How to create an extension

After reaching the design depth of the well, a plow is attached to the drill. It can be fixed in two positions: to form a heel of 50 or 60 cm. The plow is tied to a rope.

On hard soils, working with the plow open can be problematic. Then you can create the expansion in stages. First set the plow to the smallest distance, then increase it to the desired size.

Filling with concrete

If the groundwater level is low, no problems arise: fill it in and treat it with a vibrator. All.

The video below demonstrates the technology of building a foundation with TISE piles and a high grillage.

An online calculator for calculating a monolithic bored grillage foundation will help you calculate the dimensions of the foundation, formwork, diameter and total length of the reinforcement and the volume of concrete consumed. Before you start designing a building with such a foundation, be sure to consult with specialists to determine how justified this choice is.

The calculations of this calculator are based on the standards given in GOST R 52086-2003, SNiP 3.03.01-87 and SNiP 52-01-2003 “Concrete and reinforced concrete structures”.

Columnar and pile foundations are types of foundations that use pillars or piles as supports. They are immersed in the ground to the required depth, and their upper parts are connected by a solid reinforced concrete structure (grillage), which does not come into contact with the ground. With columnar and pile versions of the grillage foundation, the installation depth of the supports differs.

The grillage structure makes sense where the soil is not suitable for the usual placement of the foundation (weak soil, heaving, or freezing to a considerable depth). Since piles are driven under any climatic conditions, a grillage foundation is especially relevant for regions with low temperatures and harsh climates. Other advantages of grillage technology are high construction speed and low need for excavation work. It is enough to drill holes and install ready-made piles.

Many parameters of a grillage foundation can vary. These are the shape and materials of the piles, methods of action on the ground, installation methods, and the shape of the grillage. Each case of a grillage foundation must take into account the design loads, climatic conditions, soil specifics and other features of the area and the future structure. To clarify all these points, you need to carry out the necessary measurements and calculations, and, if necessary, invite specialists. Saving on initial calculations can have serious consequences in the future. To avoid this, we first recommend that you carefully study this calculator. In it you can determine future costs and, using the example of a standard design, determine the components of the planned foundation.

When filling out the fields of the calculator, check the additional information displayed when you hover over the question icon.

At the bottom of the page you can leave feedback, ask a question to the developers, or suggest an idea to improve this calculator.

Explanation of calculation results

Total grillage length

The total perimeter of the foundation, including internal partitions.

Grillage base area

The area of the bottom of the grillage that needs waterproofing.

Area of the outer side surface of the grillage

The area of the side surfaces of the outer side of the foundation that needs insulation.

Volume of concrete for grillage and pillars

The total amount of concrete that will be needed to pour the foundation of the given parameters. Actual demand may be higher due to compaction during pouring, and the volume of concrete actually delivered may be less than what was ordered. Therefore, we recommend ordering concrete with a 10% reserve.

Concrete weight

Approximate weight of concrete at average density.

Load on the soil from the foundation at the base of the pillars

When calculating, the total weight of the structure is taken into account.

Minimum diameter of longitudinal reinforcement bars

Calculated according to SNiP standards. The relative content of longitudinal reinforcement in the section of the grillage strip is taken into account.

Minimum number of rows of grillage reinforcement

To counteract the natural deformation of the grillage tape under the action of compression and tension forces, it is necessary to use longitudinal rods in different grillage belts (at the top and bottom of the tape).

Total weight of reinforcement

The weight of the reinforcement bars combined.

Amount of reinforcement overlap

To fasten overlapping reinforcement bars, use this value.

Length of longitudinal reinforcement

Total length of reinforcement including overlap.

Minimum number of longitudinal reinforcement bars for pillars and piles

The required number of longitudinal reinforcement bars for each column or pile.

Minimum diameter of reinforcement for pillars and piles

The minimum permissible diameter of longitudinal reinforcement bars that ensure the strength of pillars or piles.

Minimum diameter of transverse reinforcement (clamps)

Determined based on SNiP standards.

Maximum pitch of transverse reinforcement (clamps)

It is calculated in such a way that when pouring concrete, the reinforcement frame is not displaced or deformed.

Total weight of clamps

The total weight of the clamps that will be required during the construction of the entire foundation.

Minimum board thickness for supports every meter

Required thickness of formwork boards for given foundation parameters and given support spacing. Calculated based on GOST R 52086-2003.

Number of formwork boards

The number of boards with a standard length of 6 meters that will be required for the construction of the entire formwork.

Formwork perimeter

The total length of the formwork, taking into account the internal partitions.

Volume and approximate weight of formwork boards

This volume of boards will be required for the construction of formwork. The weight of the boards is calculated from the average density and moisture content of coniferous wood.