Geosynthetics August/September 2021 - 25

FIGURE 6 Aerial view of completed
Kilisut cofferdam installation
Conclusion
The installation of the modular dams
took seven days to complete and were
drained and removed in January 2020
(Figure 6). The dams performed successfully,
with the contractor being able
to complete solids removal from the
channel in dry conditions. This was a
significantly faster method than if they
had had to rely on a vacuum dredge. The
use of the temporary cofferdams was a
key component in providing an environmentally
safe and successful installation.
It also provided major cost savings to the
contractor and project owner.
Civil engineers and contractors are
increasingly using portable geosynthetic
cofferdams to help control water in a
variety of excavation and dewatering
applications. While there are numerous
systems available, each system should be
individually reviewed and engineered
for each application to reduce the risk
of failure and ensure safe work conditions.
When properly designed and
installed, portable geosynthetic cofferdams
provide numerous economic and
environmental advantages when used to
control water.
References
Noon, R. K. (1994). Engineering analysis of vehicular
accidents. CRC Press, Boca Raton, Fla.
Sati, R. (2011). " Case study: Performance of rapid respond
flood control system during 2011 flood in Manitoba. "
Proc., 2011 GeoManitoba, Winnipeg, Man., Canada.
Wikipedia contributors. (2020). " Cofferdams. " Wikipedia,
The Free Encyclopedia, https://en.wikipedia.org/wiki/
Cofferdam. Accessed Aug. 10, 2020. G
www.GeosyntheticsMagazine.com
25
>> For more, search cofferdams
at www.GeosyntheticsMagazine.com.

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Geosynthetics August/September 2021

Table of Contents for the Digital Edition of Geosynthetics August/September 2021

Geosynthetics August/September 2021 - Cover1
Geosynthetics August/September 2021 - Cover2
Geosynthetics August/September 2021 - 1
Geosynthetics August/September 2021 - 2
Geosynthetics August/September 2021 - 3
Geosynthetics August/September 2021 - 4
Geosynthetics August/September 2021 - 5
Geosynthetics August/September 2021 - 6
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Geosynthetics August/September 2021 - Cover3
Geosynthetics August/September 2021 - Cover4
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 1
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 2
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 3
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 4
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 5
Geosynthetics August/September 2021 - GeoNashville Attendee Brochure 6
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