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Screw Pile Installation Technology



Screw piles are a sought-after solution in the construction industry due to their versatility, ease of installation, and optimal reliability. They are widely used in the construction of pile foundations for various structures, such as houses, bridges, fences, and barriers.

These pile elements are particularly effective in dense soils and in frozen ground conditions. The installation of screw pile supports involves several key stages, each requiring specialized equipment.

The use of these pile supports allows for the secure anchoring of both shallow and deep foundations without disrupting the natural soil structure. Their use is especially important in permafrost soils, as excavation and concreting are eliminated.

A distinctive feature of the screw pile support design is their high load-bearing capacity, which is effective under both compressive and tensile loads.

Installation Stages

1. Preliminary Work and Planning

Before installation, a thorough engineering survey must be conducted. Geological surveys to assess the soil type and condition. Determining the required length, diameter, and blades based on the load and soil characteristics. Marking the area for pile installation based on the design.

1. Site Preparation

Before installing the screw pile foundation, the site is cleared of debris, the surface is leveled, and, if necessary, the topsoil is removed. This creates conditions for the easy movement of machinery and equipment.

2. Pile Driving

The main stage of installation is the process of screwing in the piles. This begins with the screwing in of the screw supports, either manually or using specialized equipment. A hole up to 25 cm deep is dug at the installation point. In some cases, when the pile is difficult to drive in, the depth must be increased to 50 cm.

Next, positioning occurs: the support is installed vertically at a predetermined point according to the plan. Screwing: the pile is screwed into the ground, manually or using equipment. Due to its spiral shape, it is easily driven into the soil. The piles are screwed in to the design depth, ensuring high-quality anchorage of the structure.

3. Monitoring the driving level

During the driving process, it is important to ensure verticality and accuracy. Deviations can lead to a decrease in the foundation's strength, which will impact its durability.

4. Pouring concrete if necessary

After driving, the supports can be further reinforced with concrete to increase their load-bearing capacity. This is especially important for structures with a high foundation load.

5. Installing the grillage

At the final stage, a concrete, wooden, or metal grillage is installed on the piles—a bracing that serves as a connecting element between the piles and the structure. This ensures uniform load distribution on the pile supports and makes the foundation more stable and durable.

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