- pile foundations
- Benefits Key features and types
- Construction technology
- Restrictions on use
If you start digging a foundation pitfuture home and as burial discovered that the soil is not suitable for strip foundation, then you have to change tactics.Why is that?Because the low density of the earth or the ground water were not allowed to ordinary foundation to maintain their strength and integrity of the house built on it.In this case, the best solution is a manufacturer of pile foundation, which will allow to achieve the desired result.There are several solutions to this problem.In this article we look at how you can make a pile foundation with his own hands.
pier foundation inside
piling technology in areas of frequent flooding is particularly relevant and has been widely used in the construction of houses.Previously used as a driving logs, which are hand-hammered into the ground.This allowed us to build a house, raised above the sur
pile foundation has a number of advantages that allow it to be the most popular among the builders.Using piles avoids the trenches, the formwork in this case do not have to fill the sinuses.Moreover, the piles are driven into the ground with special equipment, which greatly facilitates the work.
For bored piles can be cut through the hole with a hand drill.This technology, which is to manufacture without the use of pile foundation technology will allow the foundation to equip their own hands.
scheme pier foundation
often when building a house is found that the upper layer of soil is rather weak.These types of soil include:
- rich in humus,
- groundwater close to the surface.
If the soil in your area fits one of these descriptions, and you need to build a house, then the ideal solution is to pile foundations.Also, by using this technique, significantly reducing the amount of ground works.
You can also add the fact that the big mountains of the earth left over from digging trenches for strip foundation, it will be necessary to take out, which will lead to additional costs.
main characteristics and types
pile foundations may vary depending on the choice of driving, as well as their method of production.Such a foundation can be the difference in the depth of immersion of piles, their location and types of scans.What are piles?They are reminiscent of the long rod that is immersed directly into the ground.Mainly carried immersion finished piles.To protect it from cracking under the stress on it, is mounted on the upper end of the steel ring.There is also the production technology of the pile in the hole.To do this, the well is drilled, which is then reinforced and concreted.
consider in more detail, what are the differences piles.
And so, the process of piling has differences.For example, screw piles resembling drill sink by tightening.
There are also printed concrete or reinforced concrete piles.Their production is carried out in the soil itself in a pre-prepared hole.Upon completion of the preparatory work is carried out of a metal frame reinforcement and concreting.There is an option to drill reinforced concrete piles, which are immersed in the finished hole.Well, driven piles, which are placed in the soil with the help of special equipment, such as vibrator.
Piles vary according to the method of influence on two types, namely, racks and hanging.With regard to the latter option, the load carried by friction on the wall of earth piles.Well, rack passed all the resulting load on heavy soil, which is located under a layer of weak soil.The advantage of this kind is that it has no precipitation.A method of driving arrangement can also be made to various methods:
- single.They serve as a free-standing support.
- combined to pile tape.Their distribution is performed uniformly over the entire perimeter of the foundation, respectively and the load is uniform.
- combined piling in bushes.In this case, the piles are placed under the column base support house.
Piles can be made of wood, steel and concrete.The peculiarity of concrete piles is to manufacture them in place with concrete grade M200.The service life of such a product can exceed 100 years.When steel piles, they have several disadvantages.For example, to work with them you need to use special equipment, and metal corrosion need to carefully handle the liquid.This method is the most expensive.
directly in the soil piles can be placed exclusively vertically.However, in some cases they pierce and obliquely.Usually this is done in the soil with a horizontal force.For example, in an area that is regularly exposed to high rainfall and snowmelt, which in turn, causes the movement of soil.For a country building most commonly used reinforced concrete piles, printed and screw.
Reinforcement pile foundation
to manufacture foundation necessary to drill the required hole diameter.After the well is located in the finished fittings and everything is filled with concrete.This pile foundation can be made with their own hands.Now consider the sequence of work.
How to determine the number of piles for each building?To a large extent this will depend on the total mass of the house, as well as possible operating loads.This includes load floor, walls, roof, etc.. When counting is important to take into account the diameter of the drill manual.In specialty stores, you can buy a drill diameter of 300 mm.To drill a well depth of five meters and deeper, the length of the rod can be adjusted independently.An important point in drilling is that the drill blades arranged so that these are processed more easily.You can buy a drill, which will expand the bottom of the well, so that is formed on the bottom of the pile heel.This technology significantly reduces the number of piles, respectively is a big savings for the preparation of the concrete mix.In the event that there is a need to drill a well 600 mm, it is best to use electric and motorized drills, for example, an electric-drill holes.
concreting and reinforcement piles
After drilling, it is necessary to make special pipes made of tar paper, made by the diameter of the hole.Their length should be greater than the depth of the pit 30 cm. The upper projecting portion should pull the wire, because it will be shuttering.After carefully inserting the pipe into the well.
Why require so-called "pipe"?In fact, its use will prevent negative consequences.At that moment, when the concrete is grasped, the key is to have a sufficient presence of "milk" in the concrete mix.If you do not use a tube of roofing material, this "cement milk" will be absorbed into the soil, and produces construction will not have the necessary strength.
To further strengthen the construction of the reinforcing cage can be made.It's enough to take the three rod fittings Ø 6 mm, and fasten them together by transverse bars, at a distance of 50 - 60 cm from each other.To connect the poles and ground beam vertical rods should go above the filling product.Once the framework is placed in a borehole can be concreted.Bay 50 cm, it is desirable to seal the concrete vibrator, as it will help prevent the appearance of voids in the pile foundation.
What is the grillage?This is a special design that provides an even distribution of load transmitted to the ground by piles.She also combines together several piles in one whole structure.Raft foundation can be of several types, such as ready-monolithic, monolithic, modular, low and high.
If you use a low grillage, it is placed at the bottom of the ground, respectively, the vertical part of the load is fully transferred to the soil, and using upper raft foundation, the entire load will be on piles.If future home will be relatively easy, it is important to adhere to the following parameters: the height of the pile of at least 30 cm, and in case they are placed single row, across the width of the cap.In the absence of the cap, the height should be at least 40 cm. In no case can not be done, and the intersection of ground beam for cutting various kinds of pipelines.Moreover, the total deviation from the center of the pile after the concrete should be no more than five centimeters.
If done prefabricated assembly with his own hands, it is extremely important to carefully implement consolidation in the pile head, placing it horizontal rebar.Its height should be sufficient to be able to connect it to the raft during installation.Then, without fail, the joint is concreted mounting and vertical rod is welded to the loop pile cap.After the complete installation of pile cap, every joint and seam it is recommended to fill in fine concrete.Before you begin construction of the house, namely the construction of the wall, make sure the plane of the pile cap, and if necessary, to align it with cement mortar.
Restrictions on use
So, as you can see, this technology has many advantages.However, in some cases, the use of pile foundation is not recommended.The two main reasons:
- available if the soil has a horizontal movement, namely, has features such as a swelling soil or ground subsidence, then the use of pile foundation is limited.To determine if you can use the services of the laboratory.After exploring the specificity of the earth draw conclusions.
- During arrangement pile foundation there are certain difficulties in the construction of the cap.Costs increase due to complete filling of the space between the piles, just as in the pier foundation.
So, now do you understand how to make the pile foundation with his own hands.Despite the fact that this process is quite time consuming to do pile foundation with his own hands is quite real.Moreover, pay special attention to the nature of the soil, as having many advantages, the device of the foundation, under certain conditions, can be done.In making a final decision in choosing the foundation, consider all its pros and cons.
If you already have experience in the construction of pile foundation with his own hands, we will be glad if you share your experience.Leave your comments to be objective.Chances are, your knowledge will be useful to many!
Video This video shows how to make the columnar reinforced concrete foundation.
This video shows how screwed screw piles and further improvement of the foundation.