Ural Steel Online store Checking the certificate
What should be a pipe for a pile foundation

Buronabish piles.

Piles as a support for various buildings have been used by builders since ancient times. The idea is clear: the significant length of this constructive, that is, the pile itself, allows you to “pierce” the weak surface layers of the soil and “reach” to the hard layers. The combination of individual piles into the overall design allows you to form a reliable base.

Given the fact that a significant percentage of Russian soils can be attributed to the category of unstable, today in our country pile foundations are increasingly used, and in the construction of a variety of scale. In the country site, columnar grounds for buildings are a tangible savings and time for installation, the ability to perform many operations with your own hands. In large industrial construction, using pipes for a pile foundation, you can construct reliable supports in difficult conditions, for example, in soils oversized with soil water or in riverbeds.

The piles used can be divided into two types: immersed in the soil in “finished form” and piles, which are formed directly during the work. The second type includes brownizer piles (BNS). The name of the techno comes from its two main stages - “drill” and “fill”. The technology of the device of brownish piles has a number of noticeable advantages and allows you to achieve the required reliability of the base in a short time and with difficult "external conditions" of work.

The principle of the formation of brownish piles

At the design stage, based on the required strength of the future supporting structure, the required amount of BNS is calculated, their length and diameter are calculated.

At the location of each pile, wells are drilled with the desired depth. A casing for a pile foundation is immersed in the well, which will serve as a protective casing and protect against soil showing. In the case of a significant depth of the well, a consistent immersion of several pipes, which are connected into a casing column, may be required.

At the second stage, “stuffing” occurs, that is, filling the pipe cavity & nbsp; Concrete mixture with its sequential tamping. As concrete stings, there is a gradual rise in casing.

At the third stage, when the distance to the surface is 1.5-2 meters, the reinforcing frame is installed, which increases the strength of the entire structure and is also intended for the subsequent combination of individual BNS into a single supporting structure using a grillage.

All operations are carried out, of course, by the number of piles. In the event that the wells are located closer than 1.5 meters to each other, the stuffing process passes “through one” so that the process of tamping in one well does not affect the process of setting strength in the neighboring one.

Technology features

The disadvantage of such a technology should be called the impossibility of accurate control of the density and quality of a compacted concrete mixture, as well as possible risks of erosion of the forming pile underground waters. In case of detection of such risks and other features, the casing is not extracted from the soil and continues to perform protective functions.

The list of advantages of such pile foundations is much wider:

- Buronabish piles can be mounted in conditions of limited space, for example, in dense urban development. BNS are also effective in restoration work, when the task is to strengthen the existing foundation.

- In the same conditions, there is no negative impact on the foundations of neighboring buildings. There is no “shock load” on the soil, harmful vibrations and vibrations. Low noise.

- The process of filling the wells with a concrete mixture occurs in a short time.

- The use of BNS is the possibility of installing reliable foundations in unsteady soils and under water, for example, when erecting bridge supports.

- the depth of the bored piles can be up to 60 meters with a diameter of up to 3.5 meters, which provides a bearing capacity of up to 500 tons.

Methods for the installation of bored piles

The method of mounting BNS is primarily determined by the properties of the soil on the construction site.

On stable soils, a “dry” method is used in which you can do without the use of a casing. When installing BNS in water -saturated soil, a special clay solution is used for stuffing, which acts as a latch for individual soil word. The use of casing pipes and casing columns allows you to create a pile foundation with the greatest reliability and margin of strength.

Piles for pile foundations: where to purchase

Steel pipes for pile foundations are actively used as temporary and permanent elements. The constant improvement of technologies using brownish piles creates a stable demand for the necessary products and materials. The main requirement for pipe products is high reliability: after all, the reliability of the entire future structure directly depends on it.

The production of high -quality casing and other types of pipes for pile foundations occupies an important part in the variety produced by the Zagorsky Pipe Plant. The products of an enterprise located in the Moscow region are used throughout the country, including in the implementation of projects of a national scale. Among the regular customers & nbsp; Zagorsky Pipe Plant - Gazprom, Rosatom, Rosneft, Novatek, FSUE Rosmorport.