6 Facts About Shafts Everyone Thinks Are True
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. By twisting the shafts into the soil with advanced bearing depth, the torque is also monitored to reach a 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. For foundation repairs where soil condition would need installation to be deep piles, this system is proven to be very effective solution. Helical piers as compared to other systems will prove to be more advantageous especially if the work involves existing buildings.
Unlike deep foundations that require more specialized equipment, in the helical piers, the equipment used are usually smaller, lighter and less specialized. In this case, the cost of moving in and moving out or mobilization is usually lesser than other systems. Tight and confined areas are then more accessible to contractors when installing helical piles because of the specifications, while the larger equipment simply cannot fit.
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. Remember that it is not advisable to work on additional structure on neighboring properties with already existing structures.
The torque should be regularly monitored when contractors are installing helicals in each 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. Because helical piers are screwed in or turned, minimal excavation is sufficient. 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.
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.
A word of advice, it is better to check structural engineer or repair foundation service to see which job is the right one for your project, especially each project could be different with various factors that will have an effect on the construction.