Can screw piles be installed in winter?

Installing screw piles in winter is a topic that generates a number of controversies and misconceptions. However, modern technology and specialized equipment make it possible to install piles even in winter, maintaining the foundation's reliability. In this article, we'll dispel these myths and provide information on the technology for installing screw piles in cold weather.

Screw Piles in Winter: Myths and Reality

Myth 1: Screw piles cannot be installed in winter.

Reality: Screw piles can be installed year-round. The main thing is to follow the installation instructions. Specialized equipment will help install piles to the required depth in frozen ground. Piles with a larger shaft and blade diameter (from 108 mm to 325 mm) are better suited. A support length of 3 meters or more is suitable for deeper soil layers, which may be less mobile.

Myth 2: Piles will not withstand frost heaving. Reality: Screw piles are installed below the frost line, where frost heaving does not affect their stability. The pile's blades distribute the load over a large area, providing reliable support.

Myth 3: Installation in winter is more expensive.

Reality: Installation costs may be higher due to the need for specialized equipment, but savings on concrete and faster construction offset the expense.

Myth 4: Screw piles rust in winter.

Reality: Screw piles are made of galvanized steel or have a special anti-corrosion coating that protects them from rust even in harsh winter conditions.

Can piles be installed in winter?

Yes, they can! A screw pile is a metal pipe with blades at the end that is screwed into the ground. This foundation installation method is suitable for all types of soil, including frozen soil. Winter is not a barrier to installation, but it does require compliance with the rules and procedures.

What challenges arise during installation in winter?

1. Frozen soil: In winter, the ground freezes to a significant depth, making it denser and harder. This makes driving piles difficult.

2. Equipment difficulties: Construction equipment may experience difficulties working in freezing temperatures. Special equipment adapted to low temperatures must be used.

3. Working conditions: Working outdoors in cold weather is challenging. Workers must be provided with warm clothing and protective equipment.

4. Limited access: Snowdrifts and ice make access to the construction site difficult.

What temperature can piles be driven?

The optimal time for installing helical piles is when the air temperature does not drop below -10°C. Under these conditions, the ground does not completely freeze, making the driving process more efficient. In winter, it is recommended to plan installation in advance to avoid adverse weather conditions.