Discovering The Truth About Construction

The Advantages of Helical Piers

Helical piers are described as deep foundation underpinning elements, with the use of steel shafts together with helical flights. In performing the construction, shafts are moved to a bearing depth by twisting them into the soil, and at the same time the torque is monitored to the pile capacity.

It is recorded that the helical pier technology is more than 100 years old. Considered to be proven for new constructions and repairs or renovation works, this system is well used. Where the soil condition requires deep piles for installing foundation repair, this system is said to be a very effective solution. Especially if the work requires on existing buildings, helical piers would have competitive advantages over other systems.

Helical piers foundations need equipment that are just smaller, lighter and less specialized unlike the equipment used in other kinds of 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.

Another advantage of helical piers is that its installation is vibration free, and this is because they are turned in with a torque motor, a procedure similar to a wood screw being turned into a piece of wood. Note that it is not wise to create additional structure on an existing structure.

It is advisable for the contractor to be monitoring the torque it is required when installing each helical pier. The capacity of each pier is directly related to the torque rating, therefore the contractor will know at the end of each installation the load or capacity that a 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. Costs of removal and disposal are saved when installing the piers because there are not spoils to be hauled or removed from the area of construction.

There is not violent hammering or banging to install helical piers and this is a big advantage with regards to the reduction of noise.

Aside from being used in new construction projects, another very important advantage of using helical piers is that they can be great alternative for projects with failed existing foundations. There is also a contribution to the green environment when using helical piers, because instead of removing the existing foundation that failed and dispose it in a landfill, contractors would install the helical piers under the existing foundation thus there is a deep foundations system that is created.

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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