Helical pier is a steel foundation pin used to provide support for wide range of structures. They are used when the soil conditions prohibit conventional foundation system. In most cases, helical piers are used to support existing structures that have failed.
The purpose of helical piers is to transfer the load of the structure through weaker soil to stronger soil. Therefore, helical piers provide a deep foundation solution. Helical piers are primarily designed for heavy commercial work, but they are also suited for foundation repairs, additions, and backyard decks.
The piers intended for residential use are made of galvanized steel. However, if the soil is very corrosive, sacrificial anodes can be added. It should be noted that diameter of helical pier usually varies with soil conditions. Usually, the installer can use smaller pier for rocky soils and larger one for clay soils.
In most, you will notice cracks in your foundation, wall, or your home’s exterior. These are the signs of a weak or failing foundation. However, this can be rectified by installing helical piers. On the other hand, you will require helical piers if you are working on a construction project. Most construction projects require deep foundations, or over excavation in order to support huge loads. Therefore, this problem can be solved by using helical piers.
In most Industrial projects, helical piers are preferred because they can be easily installed in a limited space, with minimum disruption of the daily operations of the affected equipment.
Benefits of helical pier foundations
- Fewer damages to yard or landscaping since the installation machinery is very small and does not leave any tire tracks on the ground.
-When installed properly, helical foundations are guaranteed to last for a long time.
The helical piers foundation usually cost 4 times more than concrete footing. In addition, you may spend more if your installation involves unfavorable soil conditions.