Belt-pile foundation for your home: worth doing or not?

Alas, not every building plot has ideal conditions for constructing a structure: a horizontal platform, a reliable soil, a lack of groundwater, etc. Therefore, very often a developer faces the need to strengthen the construction of the base, and instead of the usual tape belt, Pile foundation.

Why not a simple foundation?

When, instead of the usual ribbon foundation, is the combined one used? First of all, when the bearing capacity of the ground leaves much to be desired. The most reliable are rocky rocks, gravelly soils, dry sands and dry, hardened and compacted clays. Inferior to them in reliability raw fine-sandy with impurities soil and moist clay. In the category of dangerous fall fine and dusty sand, water-saturated clay, sandy loam, as well as loose soils - here it is simply necessary to use a belt-pile foundation.

Another option, when a reinforced base is required - the location of groundwater is too high, if they can not also be drained away. And, of course, if you are planning to build not a private small house, but a multi-storey one, then obviously you can not do with a simple shallow or even buried foundation: it is necessary to install more solid base constructions. Also, do not forget that the topography of the construction site requires special attention: if your site is located on a slope and level it for some reason Unprofitable, it is possible to use a belt-pile foundation.

Base calculations

Everyone understands that the construction of any house begins with a foundation. However, in order for the building not to fall and not to sag, it is necessary to calculate the band pile foundation, which will result in the base parameters: diameter of the reinforcement, width and thickness of the concrete. It is also necessary to determine the number of piles necessary for a particular building, their location and the distance between them.

Foundation installation

Knowing all the parameters of the future basis, you can start working directly on the construction site. The first stage is the release of the site from the existing networks on it - electricity, gas, water. It is also necessary to install a drainage system if groundwater is located in the ground , which can damage the structure being erected. Now the vegetative and most fertile soil layer is removed; After the construction is completed, this land is used for planting the plot. When the soil is prepared, under the belt-pile foundation, a trench is pulled out and wells under the piles are drilled in accordance with the calculations. Next, waterproofing piles, installation reinforcement and pouring concrete . After the piles are ready, it is necessary to create a grillage, thus giving the structure additional rigidity. Before you start installing the ribbon foundation on grillage, the aboveground part of the foundation - the tops of the pile and grillage - are insulated.

As for the cost, when it comes to the pile-ribbon foundation, the price is an order of magnitude higher than in the case of an ordinary, unflogged base. However, it is difficult to argue with the fact that such a design is much more reliable, and this fact is a weighty argument in favor of a more expensive foundation.