For permafrost soils 108

This type of foundation offers numerous advantages compared to others, including a significant reduction in both time and material resources, and eliminating the need for labor-intensive excavation work. Furthermore, pile foundations on permafrost soils are sometimes the only feasible method for constructing structures.

Helical pile structures for permafrost soils are composed of pipes equipped with cast or welded tips of specific configurations. The primary distinguishing characteristic of these products is the diminution of the blades' width in comparison to their counterparts intended for conventional operating conditions. This enables an even and highly efficient distribution of soils during the screwing process, compacting soil layers while ensuring a high load-bearing capability.

Moreover, the tip is produced with sharpened ends instead of a conical design, which is also due to specific usage conditions.

Depending on their functional purpose, screw-type piles are categorized into the following modifications:

• Constructions that are specifically designed for the periodic thawing of soils. Typically, the installation of such piles is carried out during the summer period or when the ground is artificially thawed without the need for pre-drilled holes.
• When the installation method is more labor-intensive and technically complex, it is necessary to drill a pre-drilled hole along the entire length and diameter of the pile. However, in some cases, it is the only viable option for creating a strong and safe foundation base.

The pile foundation technology eliminates the negative impact on vertical force supports, which greatly contributes to preserving the original soil structures where the screw pile is fixed. It is recommended to use a depth of immersion of between 4 and 8 meters, which is below the potential thawing level of permafrost soil. Consequently, the occurrence of settling and tilting of foundations is averted, even in the presence of extensive soil thawing and the influence of external aggressive factors.

During the fabrication of screw-type pile structures for permafrost soils, we exclusively employ superior materials such as alloyed steel and specialized metal alloys. Our signature products undergo a thorough processing and are coated with polymer protective chemicals. This ensures that the piles will continue to operate flawlessly, even after repeated disassembly and installation.