Geosynthetics June/July 2023 - 25

shift in the wind direction allowed air
to sneak under the leading edge of the
geomembrane: halting production while
the trapped air is let out and the geomembrane
pulled back into place. In this case,
about half a day was needed to carefully
reposition the materials. Equally impressive
is how quick a brief wet microburst
can accumulate on top of a half million
square feet (46,500 m2) of liner when it
can no longer be absorbed by the soil.
Cover phase
As previously mentioned, the design for
the sand ballast to be placed on top of the
geomembrane across the floor of each cell
was to be 6 inches (15.24 cm) thick. This,
compared to a more common 12-inch
(30.48-cm), 18-inch (45.72-cm), or
24-inch (60.96-cm) cover thickness made
this phase of the project extremely challenging.
The sand was excavated from a
borrow pit to the west of the lagoons and
a large stockpile was also placed on the
east side of the lagoons, shortening the
transport distance to speed up the operation.
The general contractor again hired
Western Concrete and expanded its scope
of work to include this operation since
Western had plenty of heavy iron already
on-site, much of it GPS equipped and
perfect for the precise cover operation
that was needed.
The general cover operation plan
involved establishing haul roads 3 feet
(0.91 m) thick entering in a single corner
of each lagoon. Haul trucks carried in
the sand, and then it was spread out by
low ground pressure (LGP) skid steers
and graders. Even with careful instruction
and continual inspection by operators
and ground personnel, it is nearly
impossible to perform a bare liner cover
operation of this size without some damage
occurring.
Additional mobilization of a small
repair crew was needed in October and
GeosyntheticsMagazine.com
25
FIGURE 12 Trapped air under liner
FIGURE 13 Rainwater covering liner
FIGURE 14 Collected rainwater after minor rain event
Go Beyond the Ordinary
CONT AIN | CONTR OL | COMPL Y
Contain and control the elements
in even the most challenging
environment with quality PVC
films, membranes, laminates, and
accessories from Plastatech®
.
For more information about
Plastatech, give us a call or
visit the website today:
800-892-9358
plastatech.com

http://www.plastatech.com http://www.GeosyntheticsMagazine.com

Geosynthetics June/July 2023

Table of Contents for the Digital Edition of Geosynthetics June/July 2023

Geosynthetics June/July 2023 - Cover1
Geosynthetics June/July 2023 - Cover2
Geosynthetics June/July 2023 - 1
Geosynthetics June/July 2023 - 2
Geosynthetics June/July 2023 - 3
Geosynthetics June/July 2023 - 4
Geosynthetics June/July 2023 - 5
Geosynthetics June/July 2023 - 6
Geosynthetics June/July 2023 - 7
Geosynthetics June/July 2023 - 8
Geosynthetics June/July 2023 - 9
Geosynthetics June/July 2023 - 10
Geosynthetics June/July 2023 - 11
Geosynthetics June/July 2023 - 12
Geosynthetics June/July 2023 - 13
Geosynthetics June/July 2023 - 14
Geosynthetics June/July 2023 - 15
Geosynthetics June/July 2023 - 16
Geosynthetics June/July 2023 - 17
Geosynthetics June/July 2023 - 18
Geosynthetics June/July 2023 - 19
Geosynthetics June/July 2023 - 20
Geosynthetics June/July 2023 - 21
Geosynthetics June/July 2023 - 22
Geosynthetics June/July 2023 - 23
Geosynthetics June/July 2023 - 24
Geosynthetics June/July 2023 - 25
Geosynthetics June/July 2023 - 26
Geosynthetics June/July 2023 - 27
Geosynthetics June/July 2023 - 28
Geosynthetics June/July 2023 - 29
Geosynthetics June/July 2023 - 30
Geosynthetics June/July 2023 - 31
Geosynthetics June/July 2023 - 32
Geosynthetics June/July 2023 - 33
Geosynthetics June/July 2023 - 34
Geosynthetics June/July 2023 - 35
Geosynthetics June/July 2023 - 36
Geosynthetics June/July 2023 - 37
Geosynthetics June/July 2023 - 38
Geosynthetics June/July 2023 - 39
Geosynthetics June/July 2023 - 40
Geosynthetics June/July 2023 - 41
Geosynthetics June/July 2023 - 42
Geosynthetics June/July 2023 - 43
Geosynthetics June/July 2023 - 44
Geosynthetics June/July 2023 - Cover3
Geosynthetics June/July 2023 - Cover4
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2024-january-2025
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-july-august-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-case-studies-guide-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-april-may-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-february-march-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2023-january-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2023
https://www.nxtbook.com/ata/geosynthetics/geoysynthetics-august-september-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-june-july-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-april-may-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-february-march-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2022-january-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-august-september-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-june-july-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-april-may-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-february-march-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-december-2021-january-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-october-november-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-august-september-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-june-july-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-april-may-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-february-march-2021
https://www.nxtbook.com/ifai/geosynthetics/1220GS
https://www.nxtbook.com/ifai/geosynthetics/1020GS
https://www.nxtbook.com/ifai/geosynthetics/0820GS
https://www.nxtbook.com/ifai/geosynthetics/0620GS
https://www.nxtbook.com/ifai/geosynthetics/0420GS
https://www.nxtbook.com/ifai/geosynthetics/0220GS
https://www.nxtbook.com/ifai/geosynthetics/1219GS
https://www.nxtbook.com/ifai/geosynthetics/1019GS
https://www.nxtbook.com/ifai/geosynthetics/0819GS
https://www.nxtbook.com/ifai/geosynthetics/0619GS
https://www.nxtbook.com/ifai/geosynthetics/0419GS
https://www.nxtbook.com/ifai/geosynthetics/0219GS
https://www.nxtbook.com/ifai/geosynthetics/1218GS
https://www.nxtbook.com/ifai/geosynthetics/1018GS
https://www.nxtbook.com/ifai/geosynthetics/0818GS
https://www.nxtbook.com/ifai/geosynthetics/0618GS
https://www.nxtbook.com/ifai/geosynthetics/0418GS
https://www.nxtbook.com/ifai/geosynthetics/0218GS
https://www.nxtbookmedia.com