What is a pile foundation foundation

Many know that the most popular and common for individual construction is a tape or columnar-tape foundation. And these types of foundations are well exploited both on the topsoil and weakly grooved soils. It is the latter type of foundation that is also called the pile foundation foundation. Its use in construction has a number of advantages in relation to other types of foundations. Firstly, when equipping such a foundation, labor intensity and, correspondingly, the cost of work, are markedly reduced. In addition, when the foundation tape is placed above the ground, the consumption of concrete is noticeably reduced due to the lack of a foundation pad in the ground . In addition, the second reason why the pile foundation foundation is better than the rest is the reduced heat loss due to a decrease in the contact area of the grillage with frozen soil. And thirdly, when equipping this type of foundation, due to the peculiarities of connecting the poles with the grill, the whole system acquires vibration isolation properties, which is very useful when the building is located, close to, railways or highways.

First, you should know that the concept of grillage is translated from German as a phrase "lattice" and "structure." In reality, this is part of the foundation, which is a slab or beam, which combines the head sections of the piles and serves as a supporting structure for the rest of the erected elements of the entire structure.

In general, the whole system consists of the following components: foundation piles (their number is determined by the assumed final weight of the entire house structure); Reinforcing frame for grillage (when using ready-made RC structures is not performed); Directly itself grillage (its height can vary from 20 to 40 cm, and width from 20 to 60 cm); And the internal piles that are located in the center of the perimeter of the house and which serve as the basis for the inner walls of the building also belong to the foundation system.

The pile-foundation foundation can be equipped with two types of piles: rammed and drilled piles. Although sometimes single piles are also used, they are installed as pillars for columns.

In addition, the type of interaction with the soil piles are divided into piles, and pendant piles. The first type of piles retains the construction by abutting it in the stronger layers of the ground, and in the second case the pile retains its position due to friction against the ground by the lateral surfaces.

As grillage can be equipped as monolithic, and prefabricated reinforced concrete slabs and structures. Pile foundations with monolithic Grillage , as a rule, equipped with reinforcing frame, which represents welded from the reinforcement box and serves to improve the strength and plastic characteristics of the entire foundation as a whole. But prefabricated reinforced concrete foundations are not equipped additionally with a skeleton, since it is already included in the construction of a grill made at the factory. The only thing is that such structures are joined together when installed on site.

When building a wooden or panel house, the pile-foundation foundation must have a height of at least 40 - 60 cm. Such a height should provide high flexural rigidity parameters and separate the wooden structures of the house from high humidity from the ground. The width in this case depends mainly on the design of the wall itself and the elements of the lower floor.

And when erecting a stone house, a pile foundation foundation must be at least 20 cm high. At the same time, the width should be determined by the thickness of the wall. In this case, the main purpose of grillage is to combine the supports into a single bearing structure, on which it is possible to erect walls. Moreover, the grillage design must reliably ensure the weight retention of the first rows of masonry. Since the wall itself already has high flexural rigidity parameters when building stone walls.