Smart Tips For Finding Foundations

What are the Uses of Helical Piers?

Known as helical piers are deep foundation underpinning elements that are constructed with the use of steel shafts with helical flights. By twisting the shafts into the soil with advanced bearing depth, the torque is also monitored to reach a pile capacity.

Helical pier technology is said to be well over 100 years old. Considered to be proven for new constructions and repairs or renovation works, this system is well used. This system is proven to be a very effective solution for foundation repairs especially when the soil condition would need installation of piles to be deep. Helical piers as compared to other systems will prove to be more advantageous especially if the work involves existing buildings.

Equipments that are used in helical piers foundation are usually smaller, lighter and less specialized compared to the equipment used in deep foundations. With these conditions, the cost of mobilization or the move in and move out, is generally lower compared to the other systems. These conditions allow contractors then to go in tight or confined areas in helical piles installation as compared to the larger equipment which cannot fit into the area.

Helical piers are also advantageous in the sense that they are installed vibration free because they are turned in with a torques motor similar to a wood screw that is turned into a piece of wood. Be aware that it is not wise to add structures on an existing structures close by.

The torque of each helical pier should be continuously monitored by the contractor during installation of the helicals. Because the capacity of each pier is directly related to the torque rating, the contractor will know the load or capacity that each pier can support.

Note that helical piers can be immediately loaded after installation, meaning there is no curing time after installation. Also, there is minimal excavation required for helical piers that are turned on or screwed in. Another advantage of helical piers is that you save on costs of removal and disposal because there are not spoils to be removed from the site.

Note that with the use of smaller installation equipment like the helical piers, there is a drastic elimination of noise, like no violent hammering or banging.

There is another very important advantage of using helical piers and that is they are great solution to projects with existing foundation that failed, on top of being used for new construction projects. Instead of removing the present foundation that failed and dispose it in a landfill, the helical piers are used over the present foundation, thereby creating a deep foundation system plus contributes to a green environment.

Since there are differences in any project, it is advisable to contact structural engineers to see what is the right method for your project.