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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.

Helical pier technology is said to be well over 100 years old. It is considered as a proven system in new constructions and repairs or renovation works. 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. The helical system is proved to be advantageous over other systems 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. Hence, the cost of mobilization or the move in and move out is usually lesser as against 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.

It is advisable for the contractor to be monitoring the torque it is required when installing each helical pier. The contractor usually would know at the end of the installation the load or capacity of each pier since the capacity of each pier is directly related to the torque rating.

Helical piers installation does not require curing after installation and they can immediately be loaded. Also, there is minimal excavation required for helical piers that are turned on 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.

Noise pollution is drastically lowered when helical piers are installed because of the use of smaller installation equipment that do not require 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. Contractors also use the helical piers under the existing foundation, rather than remove and disposal it in a landfill, and when this is done, there is a deep foundation system that is created contributing to the 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.