Helical screw piles, often simply referred to as screw piles or helical piles, are a type of deep foundation system. They are steel shafts with one or more helical (spiral) plates attached, and their design allows for quick installation with minimal soil disturbance.

Design: 

Typically made of steel, the central shaft can be solid or hollow, depending on the application. Attached to this shaft are helical blades or flights, which look like large screws.

Installation: 

The pile is "screwed" into the ground using specialized equipment, turning the pile until it reaches the desired depth or achieves the required load-bearing capacity. The process involves minimal excavation and no soil removal, making it an environmentally friendly choice.

Speed: Rapid installation with instant load-bearing capacity.

Versatility: Suitable for a wide range of soil types and conditions, including areas with limited access or noise restrictions.

Environmentally Friendly: 

Minimized soil disturbance compared to other piling methods.

Cost-Effective: 

Reduced labor and equipment needs, leading to potential cost savings.

Applications: 

Used in both residential and commercial projects, helical screw piles can support decks, houses, bridges, walkways, and more. They are especially valuable in areas where traditional excavation isn't feasible or desired.

In essence, helical screw piles offer a fast, efficient, and environmentally-conscious foundation solution for a wide range of construction projects.