Helical screw piles (also referred to as 'helical anchors'), are a piling innovation that dates back to the early nineteenth century.
Nearly 200 years ago, this original technology was versatile, relatively inexpensive and easy and fast to use. These same benefits accrue to modern day projects that use helical piles. The helical screwpile is a versatile, environmentally friendly and cost-effective technology with many uses across such industries as transport, communications and civil engineering.
What are helical screw piles
A helical pile consists of a galvanised steel shaft onto which is welded a series of low-pitched circular steel plates. The piles; varying in diameter from tens to hundreds of millimetres, are screwed into the ground with hand-held or machine-mounted hydraulic or electrically powered drilling equipment.
Advantages to helical screw piles
Engineers are increasingly limited by restricted sites, environmental constraints or a minimal duration to working on a site. This is why the speed of helical screwpiles technology is so important. Some advantages can include-
Fast installation
Vibration free, quiet and virtually fume-free
No excavations or spoil to remove from site
No concrete or curing time
Small footprint - helical screw piles are ideal for restricted sites
There is design flexibility
Sustainability (removable and re-useable).
Compare this to the time and space required to set up traditional piling equipment- assuming that the latter is even suitable due to its noise, vibration and large footprint...
Where helical piles can be used
Helical pilesare faster and more efficient than most other foundation solutions and can therefore be used in mostly the same situations as regular screwpiles, including Met Masts, Portal Gantries and Retaining Walls.
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