The Many Benefits of Utilizing Helical Piers Helicon from www.heliconusa.com
Introduction
A helical pier, also known as a helical anchor or screw pile, is a type of foundation system used to support structures such as buildings, bridges, and towers. It is a deep foundation system that utilizes helical-shaped plates to transfer the load of the structure to the soil.
How does it work?
A helical pier consists of a central shaft with one or more helical plates attached to it. The pier is screwed into the ground using a hydraulic torque motor or a handheld torque wrench until it reaches the required depth. The helical plates act as a screw, creating a stable foundation by displacing the soil around the pier and providing resistance against uplift and lateral forces.
Advantages of Helical Piers
Helical piers have several advantages compared to other types of foundation systems. They can be installed quickly and easily, require minimal excavation and disruption to the site, and can be used in areas with limited access or low headroom. They are also ideal for sites with unstable or weak soil, as the helical plates provide additional support and stability.
Applications of Helical Piers
Helical piers are used in a variety of applications, including residential and commercial construction, bridge and highway construction, and telecommunication and utility towers. They are also used in the repair and stabilization of existing structures that have experienced settlement or foundation failure.
Types of Helical Piers
There are several types of helical piers, each designed for specific applications and soil conditions. Standard helical piers are used in most applications and can support loads of up to 100 tons. Mini helical piers are used in areas with limited access and can support loads of up to 10 tons. Helical tieback anchors are used to stabilize and reinforce retaining walls and other structures.
Installation Process
The installation process for helical piers involves several steps. The site is first evaluated to determine the soil conditions and the required depth of the piers. The piers are then installed using a hydraulic torque motor or a handheld torque wrench. The load capacity of the piers is tested using a hydraulic jack and a load cell.
Maintenance and Repair
Helical piers require minimal maintenance and can last for several decades with proper installation and care. However, if the soil conditions change or the structure undergoes significant changes, the piers may need to be adjusted or replaced. This can be done by adjusting the torque or installing additional piers.
Conclusion
In summary, a helical pier is a deep foundation system that provides stability and support for structures in a variety of applications. It is a cost-effective and efficient alternative to traditional foundation systems, and can be installed quickly and easily with minimal excavation and disruption to the site. If you are considering a foundation system for your next project, consider using helical piers for a stable and reliable foundation.
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