East Coast Screw Piers is based in Port Macquarie on the mid north coast of NSW. Established in 1995 the company has been advising and installing screw piers / piles on building and construction sites throughout the region. On many occasions East Coast Screw Piers has been involved in projects throughout NSW and other states. You might say our current position as one of the country’s leading exponents and installers of screw piers is built on very strong foundations.
SCREW PIERS – A HISTORY LESSON
Here is a link to a wikipedia entry where you can discover many interesting facts: http://en.wikipedia.org/wiki/Screwpiles
Alexander Mitchell was an Irsih engineer who from 1802 was blind. He is known as the inventor of the screw-pile lighthouse… told you it was fascinating stuff. Here is a link if you want to learn more… http://en.wikipedia.org/wiki/Alexander_Mitchell_(engineer)
The first ground screws (screw piers) were used from around 1833 for mooring sips and loaded in an upward direction. The crew’s head had little more than a single turn and was crewed into the the sea-ground with a temporary shaft which was later removed.
Later the shaft became the pile itself and these were used as the foundations of offshore lighthouses. One of the first, Maplin Sands lighthouse was mounted on nine such iron piles, each about 13cm diameter with a screw flange of about 1.35m diameter. Each screw pier was screed into the sea ground with eight capstan-like levers. Over 60 lighthouse foundations were built in this manner in Great Britain and the USA… …The screw pile technology was in use and known well into the 20th century .
For the full article in Human Power eJouranl see www.hupi.org?HPeJ/0018/0018.html
Today screw piers and the associated installation technology and calibrating gauges has seen a huge increase in specifying screw piers in all sots of lightweight construction and buildings as well as heavier commercial and civil projects.
Screw piers as a foundation is also a very green and sustainable.