An old industrial site has recently has been transformed into a
exclusive residential subdivision. The developers wanted to provide the public
with uninterrupted access to the steep river bank via a boardwalk. The site
offered challenges in securing the boardwalk to the embankment and access for
installing machinery. Geotechnical information showed that the embankment
consisted of a filled site over limestone.
Embankment gradient varied at
approximately 40 to 45 degrees. The requirement was for a piling system that
could be secured into the limestone and confirm each piles capacity ensuring
that the piles were locked into the limestone. Screwpiles were selected as the
best alternative. Vertical compression and raked tension piles with
specifically designed Rock Engaging
Technology (RET) pile toes were used. Access for self driven
installing machinery was not possible so a bobcat was specially prepared so it
could be lowered down the embankment via a winch cable attached to remote
earthmoving equipment at the top of the escarpment. Installation was completed
ahead of schedule and was a total success demonstrating the versatility of screwpiles.
An old industrial site has recently has been transformed into a
exclusive residential subdivision. The developers wanted to provide the public
with uninterrupted access to the steep river bank via a boardwalk. The site
offered challenges in securing the boardwalk to the embankment and access for
installing machinery. Geotechnical information showed that the embankment
consisted of a filled site over limestone.
Embankment gradient varied at
approximately 40 to 45 degrees. The requirement was for a piling system that
could be secured into the limestone and confirm each piles capacity ensuring
that the piles were locked into the limestone. Screwpiles were selected as the
best alternative. Vertical compression and raked tension piles with
specifically designed 
