CIR & GPS Logger Device in Cab
Reat-time On-Site download
using
CIR Package
Real-Time Digital output from
CIR Data |
The CIR is a specialised technique for recording real time soil response
during the HEIC process.
LANDPAC devised the continuous soil testing system to provide easily
recorded quality control, when interpolated against known soil test data.
LANDPAC has had great success with the development of "Continuous
Impact Response" (CIR) since 1999 and believes that this unique
verification system will enhance the speed of in-situ ground improvement,
deep fill proof rolling, compaction programs and soil testing for large-scale
civil and ground improvement projects.
HEIC ground response is measured using an accelerometer attached
to the HEIC impact drum tube axle. Each impact, during drum rotation,
is recorded
relative to its position on site as determined by an integrated GPS
tracking system. HEIC CIR can be very effectively used to identify
relative variations
in soil strengths, stiffness or density across the whole site. Actual
soil test results obtained at specific locations can therefore be interpolated
over the entire site. CIR can effectively test 100% of the site during
the compaction process, which is in sharp contrast with only 0.1% to
0.2% using standard quality control methods. CIR will also identify
problem areas, where undesirable materials exist below the site
surface. These
areas will be identified during HEIC and CIR processes and can be easily
located using the integrated GPS system.
The understanding of soil response during HEIC has increased significantly
over recent years. The relationship between the depth of influence
and the improvement in in-situ soil strengths has now become more
predictable from the evidence recorded on numerous projects, worldwide,
by the
recently
developed CIR verification system.
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