Pile Foundation. Pros and cons of prefabricated

Pile Foundation is becoming increasingly common in the construction of private homes

types of foundation

One of the important, albeit invisible from the outside parts of the house is the foundation. On how to correct it will be made installation of the construction site depends on the durability and quality of construction.

Depending on the application and installation technology foundations It can be classified as follows:

1. Strip foundation It is mainly used in low-rise construction. It is subdivided into modular, consisting of blocks, and the solid - in the form formwork into which concrete is poured
2. Solid foundation, it is very durable, used in places where there is a risk of ground subsidence. It is a monolithic reinforced concrete slab.
3. pier foundation lay in the construction single-storey houses. It is performed in the form of columns, which are then connected to the beam strapping.
4. Pile Foundation in recent years is becoming more common due to its reliability, versatility and availability of the installation with their own hands.

Pile Foundation may install in virtually any location and on any ground

Pile foundation and the stages of its installation

Bookmark pile foundation is used in the construction of buildings of different heights. This type of foundation does not require time-consuming work on digging the pit, which is a significant advantage over other types of home base. One of the main advantages of this method is the ability to install in virtually any location, at any ground.

In order to determine the pros and cons of the pile foundation, consider the variety, the video review stages bookmarks with your hands and especially the installation of different piles.

Based on the calculation load on the foundation is chosen diameter piles

Stages tab pile foundation

Prior to the beginning of the foundation of any arrangement necessary to spend certain preparatory work and calculations, which include the following.

• geotechnical soil analysis;
• determining a type of pile for the foundation;
• a detailed drawing of home plan with all the details of the structure;
• calculation of the load on the foundation;
• underground part of the drawing;
• installation of piles;
• calculation, and shading grillage;
• setting the ground floor;
• foundation cost calculation.

Fundam of screw piles with iron grillage

Variants of pile foundation

Foundations on stilts has a number of varieties, which differ in the installation and use of the field of technology.

Driven piles

This stems from the concrete, which are hammered deep into the ground. The technology of construction is based on precise calculations of the distribution of all future building load data supports the foundation. Piles hammered deep as long as do not fall into the most stable area of ​​ground. This type of foundation bases used in the construction industry, as the work of piling into the ground carried the heavy special-purpose vehicles. For a country house or villa this kind of piles is not suitable, so as to establish their own hands is not possible.

Place under the house with a high foundation of piles can be used as a carport

Bored piles

With this foundation as well to be drilled first, which are laid in piles, and the concrete is poured. This type of mounting supports most commonly used in the construction of multi-storey buildings. Technical labor intensity, complex calculations and high cost of the work is less the foundation on drilling piles.

The foundation on screw piles

This kind of pile foundation is most preferred in the construction of a country house. Mounting screw piles with their hands (video can be found on many construction sites), the most affordable and the volume of work. The basis for such a foundation are steel tubes with special thread-like spiral. Thanks to this cutting of the pile as if "screwed" into the ground, and with the help of screw blades are held securely in it (as shown in the video). If the soil is too loose, use screw support Threaded pipe. The steel pipe poured concrete, giving more stability.

Screw piles can be installed with their own hands, without using expensive special equipment

Good to know! Screw pile foundation - the best way to create a base for easy frame house.

Screw pile-foundation, the pros and cons of which are discussed below, it is possible to lay, even without the help of special equipment, so this method is the foundation of everything is the most affordable for its installation hands.

Advantages and disadvantages of a screw-pile method

The main advantages of the foundation on screw piles are:

• affordable price;
• speed;
• the possibility of self-assembly;

Drawing at home with markings for placing piles

Milestones on the tab screw-pile foundation

As for today's most advanced method of pile-screw option arrangement foundation attracts primarily the possibility of mounting their own hands. Thus, the future owner of the country house can greatly save on expensive equipment and professional builders.

Related article:

Ebb plinth foundation: features selection and installation. What materials are used for the production of castings for the base. Which one is better to choose and in any case. Installation of low tides.

The first stage of the work is to study the soil, a detailed calculation and drawing of home plan.

Typically, in the initial stage of construction is carried out alignment of the construction site and earthworks associated with the digging of pits or trenches. Laying the foundation piles on the screw does not require such action that reduces complexity and increases the speed of the process.

Tightening screw supports carried on a marking

At the second stage layout setting piles for the foundation of: at intervals of about 2 m markers are placed - the host will continue to twist pile. Based on the purpose of the building under construction, piles made choice of a certain diameter and weight.

The next step - tightening screw supports. shallow drilling is carried out in the field layout. Piles are screwed into the ground like a screw. This work can be done as by mechanisms and manual method.

On a note! On average, the tab screw-pile foundation may take about two days.

After installing poles produce their vertical alignment and fill the hollow part of the pipe sand-cement mortar, which increases stability of piles and protects them from corrosion.

The last stage of installation of the foundation is to unite supports monolithic grillage and the subsequent creation of base building.

Grillages kinds of different materials for the screw-pile-foundation

Pile-foundation rostverkovy

As soon as the piles are installed, they are connected monolithic raft, on which in the future is being built the whole building. This design evenly distributes the load on the foundation and support is the foundation base of the house.

Grillage performed belt or monolithic way and is made of wooden beams or concrete plates, which are combined foundation support. Depending on the location, with a monolithic pile foundation raft separated into: high, intermediate and recessed.

Raft foundation is the foundation plinth home

Important! Due to the natural decrease in soil temperature during the cold time of the year, in the ground there is a phenomenon called geologists frost heaving soil.

Moisture in the soil is frozen in winter and increases in volume. This can lead to the expulsion of foundation and, therefore, at home. To counter the phenomenon of the pile grillage combined high at an altitude of 0.1 - 0.15 m above ground level. Typically such grillage set under buildings having low weight.

For the construction of the foundation of the piles do not need to dig trenches and pits

Intermediate a grillage at ground level using a sand or gravel bed. The disadvantage of this type of raft foundation is the vulnerability to frost heaving of soil, capable to pull out of the pile and damage the brickwork.

Low raft foundation located below ground level. It is lowered to a depth of freezing in heaving soils to weakly heaving soils structure laying 0.2-0.3 m below ground level.

During the construction of a private house is most often used high pile foundation with a monolithic grillage. When constructing foundation piles on screw grillage can be wooden beams, which is fixed with anchor bolts.

Screw piles for different types of soil

Pile Foundation. Advantages and disadvantages

One of the main advantages of the pile foundation when building a house is the affordability and labor costs. It is the most attractive factor for those who builds a house with his own hands. An important advantage is also the speed of the foundation settlement and the ability to work at any time of the year.

Also advantage of this embodiment of the installation of the foundation is the stability and reliability of the design: the blade screw piles well compacted soil. In addition, this arrangement makes it possible foundation in almost any soil.

House on pile foundations can be built very quickly

By cons foundation on piles include possible shrinkage design. To avoid this phenomenon it is necessary to make a study of soil and accurate calculations to the drawing pile foundation with the raft. Careful preparatory work can be attributed to the disadvantages of the pile foundation.

Of great importance in the regeneration of the foundations on piles has the quality of the material used. In case of violation of the protective layer of the foundation structure steel corrode.

Given the pros and cons of the pile foundation, choosing it as the basis of a country house is now regarded as the most optimal and promising.