Helical piles also known as screw piles, screw cylinder anchors and helical foundations started to be used in 1836. This revolutionary engineering technology was discovered and developed by Alexander Mitchell and became utilized as a successful foundation for lighthouses, bridges and piers.
After over 170 years of development and use, these helical foundations are successfully used throughout the world to support anything from small residential applications to supporting a variety of large-scale civil engineering structures. Deck footings, fence post bases, pier footings, metal post foundations for a porch or solarium, ground screw anchors to support an addition to a home are some of the more common residential applications. Helical piles are a foundation technology and can be considered for use in any application requiring a foundational support.
According to The Newcomen Society for the Study of the History of Engineering & Technology, helical and screw pile foundations are considered perhaps the single most important development in geotechnical engineering foundation construction of the mid to late nineteenth century. They made the construction of lighthouses possible in locations where there would otherwise undoubtedly have been a great loss of life and property; they made the construction of bridges possible in locations where they might not have been constructed for another 40 years; they made the construction of oceanfront pleasure piers an industry that would irreversibly change the leisure time of an entire nation.
(This article comes from Techno Metal Post editor released)