Bored piles with grillage: technology, types, description, reviews

Bored piles with grillage, the installation technology of which will be described in the article, are used quite often today. This is due to the fact that this type of foundation is able to withstand the building on almost any soil.

Features of the foundation

Mount piles should be below the freezing level of the soil. This base is suitable for a terrain in which there are slopes. Begin work on the arrangement of piles can be on the ground of any type. The works will have no impact on nearby buildings and structures on the ground. If you use this base, then the construction can be erected even in close proximity to the reservoir, which is excluded with other types of foundations. Bored piles with grillage are able to withstand any construction, this concerns both frame, log, and brick houses.

Features of construction

Bored piles with grillage, the installation technology of which will be described in the article, should be mounted in steps of 100 cm. If this distance is reduced, the supports may deform during operation. As an exception to this rule is the installation of this foundation on a rocky ground. In this case, the minimum step should not be less than 30 cm. In order to calculate the distance between supports, it is necessary to use information that reflects the bearing capacity of supports of different sizes. Thus, if the bored piles with grillage, the installation technology of which will be described in the article, are assembled for the construction, whose weight is 50 tons, then it will be necessary to use 50 supports. The diameter of the latter should be 15 cm. As an alternative, you can use 17 piles, each of which should be 25 cm in diameter. The minimum permissible pitch between the piles in the tape base is equivalent to two meters. If it is supposed to equip a monolithic grillage, then you should prefer your own in 300 millimeters. In this case, the bearing capacity of one support will be equal to the limit from 1600 to 1700 kilograms. In order to build an average house, you will need about 70 piles.

Varieties

If you want to install bored piles with a grillage, the technology and types must necessarily be considered beforehand. The main types of such a foundation are the foundation with a suspended grillage and a base with a monolithic grillage. The first variety assumes a small distance between the grillage and the soil. Its width can vary from 80 to 100 millimeters. At the same time, it seems that the building is hanging over the ground. This design is used when it is necessary to protect the base from swelling. Actual construction is also in areas where there is a risk of flooding. Among other things, such a foundation is established in the swampy areas.

With regard to the foundation with a monolithic grillage, it is most often built for houses made of heat blocks, brick and aerated concrete. Monolithic grillage is a concrete strip that forms a single structure by means of pile joining. Supports of this base are mounted to a depth below the freezing line.

general description

The foundation on bored piles, the installation instruction of which is described in the article, has, as already mentioned, a high load-bearing capacity. Thus, the pole, whose diameter is 30 cm, is able to withstand 1,700 kg. While a support of 50 cm can undergo 5000 kilograms. With a slight increase in size, the bearing capacity rises several times. The bearing capacity is affected not only by the size of the support, but also by the material from which they are made. Among other things, there is a need to take into account the carrying capacity of soils. This will determine whether the support can go down.

Technology of arrangement

If you decide to equip the foundation with grillage on bored piles, it is important to familiarize yourself with the technology of the work. To begin with, using a mechanical or manual drill, a well should be formed, which should be located below the freezing line of the soil. Soil should not be removed from the well, compacting and compacting it. In the pit is placed ruberoid, which folds in the form of a cylinder. It is necessary for waterproofing. Inside the received pipe it is necessary to establish reinforcing skeleton. At the next stage the space is filled with a mixture of concrete of the chosen brand. After the solution has completely solidified, the support poles can be considered ready. It only remains to implement a bundle with grillage, after which you can assume that the quality foundation for the house is ready.

Cost of works

If you decide to install bored piles with grillage, technology, the price of such a foundation you should be interested. The first part of the question has already been covered above, whereas you can learn about the value by reading this article. The price of work is affected by the material at the base of the piles, the number of posts and the complexity of the work. Among other things, delivery to the construction site will be taken into account. The average cost of installation of this design will vary from 2000 to 3000 rubles per square meter. If you decide to install bored piles with grillage, the installation technology of which has been described above, then some types of work you can do yourself.

Thus, the cost will be lower if one of the listed actions will be carried out by you personally. It can be: marking, well formation, concreting, and installation of grillage.

Customer Reviews

If you are faced with the task of equipping the above-described type of foundation, then you need to study the foundation technology, bored piles and grillage are integral components of this design. This is important to know even before the start of work. However, it is necessary to review the reviews. All the masters who have already done such work, note that such a variety of the foundation can be easily arranged independently. Future owners of private homes often dream of completing construction, saving money. This can be achieved if your choice is bored piles with grillage. Experts note that in the end it will be possible to get a reliable enough and solid foundation, which will act as the foundation of any house, contributing to the preservation of the budget.