Geoysynthetics August/September 2023 - 39
Dewatering activities at construction
sites are becoming more common, including
at mines. Dewatering is a process that
basically filters the water before returning
it to the site so activities can resume. For
example, when rain fills a depression on
an active construction site,
the water is
commonly pumped out of the area so
construction activities may resume on the
subgrade. Aspen excelsior block dewatering
stations are one option for meeting
challenging requirements. The stations
incorporate a dewatering geotextile bag
in the middle of the structure. Sedimentladen
water is pumped into the bag; then
water exiting the bag flows across other
fabric and ultimately through the natural
aspen excelsior filter blocks before exiting
the system. Commercially available
dewatering sleds provide a mobile option
for the dewatering stations. Other successful
temporary dewatering options include
sand filters.
Mining sites typically have a variety
of erosion control, sediment control,
revegetation and dewatering needs. Thus,
several different products provided by
ECTC members are frequently used at
mine sites at any given time. Please let us
know if our members need to work on
providing solutions to other challenges at
mines that we are not presently fulfilling.
Please contact Jon Curry (jcurry@ectc.
org), ECTC executive director, with any
questions or comments regarding this article.
He will be sure to communicate your
questions or comments to ECTC membership,
then provide a timely response. G
GeosyntheticsMagazine.com
39
>> For more, search ECTC at
GeosyntheticsMagazine.com.
FIGURE 1 Dewatering requirements are
becoming more common across all sites.
Here is an excelsior block dewatering station.
Contaminated water is pumped into a
dewatering bag in the middle; then water is
further filtered as it flows through the aspen
excelsior blocks before existing the system.
Photo courtesy of American Excelsior Co.
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Geoysynthetics August/September 2023
Table of Contents for the Digital Edition of Geoysynthetics August/September 2023
Geoysynthetics August/September 2023 - Cover1
Geoysynthetics August/September 2023 - Cover2
Geoysynthetics August/September 2023 - 1
Geoysynthetics August/September 2023 - 2
Geoysynthetics August/September 2023 - 3
Geoysynthetics August/September 2023 - 4
Geoysynthetics August/September 2023 - 5
Geoysynthetics August/September 2023 - 6
Geoysynthetics August/September 2023 - 7
Geoysynthetics August/September 2023 - 8
Geoysynthetics August/September 2023 - 9
Geoysynthetics August/September 2023 - 10
Geoysynthetics August/September 2023 - 11
Geoysynthetics August/September 2023 - 12
Geoysynthetics August/September 2023 - 13
Geoysynthetics August/September 2023 - 14
Geoysynthetics August/September 2023 - 15
Geoysynthetics August/September 2023 - 16
Geoysynthetics August/September 2023 - 17
Geoysynthetics August/September 2023 - 18
Geoysynthetics August/September 2023 - 19
Geoysynthetics August/September 2023 - 20
Geoysynthetics August/September 2023 - 21
Geoysynthetics August/September 2023 - 22
Geoysynthetics August/September 2023 - 23
Geoysynthetics August/September 2023 - 24
Geoysynthetics August/September 2023 - 25
Geoysynthetics August/September 2023 - 26
Geoysynthetics August/September 2023 - 27
Geoysynthetics August/September 2023 - 28
Geoysynthetics August/September 2023 - 29
Geoysynthetics August/September 2023 - 30
Geoysynthetics August/September 2023 - 31
Geoysynthetics August/September 2023 - 32
Geoysynthetics August/September 2023 - 33
Geoysynthetics August/September 2023 - 34
Geoysynthetics August/September 2023 - 35
Geoysynthetics August/September 2023 - 36
Geoysynthetics August/September 2023 - 37
Geoysynthetics August/September 2023 - 38
Geoysynthetics August/September 2023 - 39
Geoysynthetics August/September 2023 - 40
Geoysynthetics August/September 2023 - 41
Geoysynthetics August/September 2023 - 42
Geoysynthetics August/September 2023 - 43
Geoysynthetics August/September 2023 - 44
Geoysynthetics August/September 2023 - Cover3
Geoysynthetics August/September 2023 - Cover4
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