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the failure zone with stone or a geogrid reinforced fill… the former not always being
effective and the latter being expensive and often not practical. There had to be a better
way to stabilize the slides in place! So, I decided to come up with a way that was less
expensive, quicker and better… and that was SRT Plate Piles.”
Typically, the Geopier SRT® system is installed by driving Plate Pile™ elements (vertical
steel reinforcement elements) using small, tracked excavators with a hydraulic hammer
or vibratory hammer that can be quickly installed into a competent layer of soil. This
system is ideally suited to stabilize slopes where the soil conditions consist of an upper
shallow zone of weathered, loose, soft or disturbed soil over a stronger layer of soil below.
Patented Plate Pile™ technology provides slope stabilization using a collection of
rigid steel piles that are driven vertically, or near vertically, into the affected slope in a
staggered arrangement of equally spaced rows so that the soil upslope of the pile can
fully bear on the pile through soil arching. Plate Pile technology increases the stabil-ity
of shallow landslides by installing rigid elements that incrementally reinforce the
soil embankment. Each Plate Pile engages a prism of slope soil and transfers the load
through the rigid element to the stable soil mass below to which it is affixed to at its
base for resistance through bending. Additionally, the system does not require a hard
face like soil nails and can easily be naturalized following installation.
Furthermore, Plate Piles are extremely effective in stabilizing landslides of varying
degrees up to 1H:1V and slide depths up to 3.6 metres (12 feet). The SRT system is excel-lent
for use on sites that have complex equipment access issues or areas that require
minimal environmental disturbance. By utilizing the SRT system, time-consuming and
expensive earth moving and excavation can be completely avoided. In addition, the
SRT system is minimally invasive to the environment and is considered to be the clean-est
and fastest method for creating true and permanent slope stability.
Mark Tigchelaar, P. Eng. is president of GeoSolv Design/Build Inc. For more information
regarding the SRT system and other innovative ground improvement methods, contact
GeoSolv Design/Build Inc. at solutions@geosolv.ca.
TECHNICAL
This system is ideally
suited to stabilize
slopes where the soil
conditions consist of
an upper shallow zone
of weathered, loose,
soft or disturbed soil
over a stronger layer of
soil below.
PILING CANADA 55
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