A Simple Plan For Researching Foundations

The Advantages of Helical Piers

Known as helical piers are deep foundation underpinning elements that are constructed with the use of steel shafts with helical flights. According to manuals, the shafts are made to bearing depth by twisting the shafts into the soil while the torque is monitored to an estimated pile capacity.

The technology of helical pier is 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.

Helical piers foundations need equipment that are just smaller, lighter and less specialized unlike the equipment used in other kinds of deep foundations. In this case, the cost of moving in and moving out or mobilization is usually lesser than 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 turned in with a torque motor like a wood screw being turned into a piece of wood, and this makes helical piles vibration free when installed that gives it an advantage. Note that it is not wise to create additional structure on an existing structure.

The torque should be regularly monitored when contractors are installing helicals in each pier. 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.

Helical piers installation does not require curing after installation and they can immediately be loaded. Minimal excavation will suffice in a helical pile because it is turned or screwed in. Since there are no spoils that are to be hauled away from the site, you save on the costs of removal and disposal.

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.

Several factors would affect your project, and so it is wise to ask the help of structural engineer to see which method would be best for your project.

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