Geosynthetics June/July 2020 - 12

Assessment of condition of an uncovered geosynthetic landfill bottom liner system

2a

reported (Take et al. 2015), resulting in
reduced/nonuniform bentonite quantity
in the GCL. All of these adverse effects
compromise the performance of the composite liner systems for effective containment. Observations are presented herein
on the condition of a GM-GCL composite liner system that was left uncovered at
a municipal solid waste landfill located
in the United States. The liner system
was constructed and then left exposed
without placement of overlying materials
for more than a decade.

Field site

2b
FIGURES 2a and 2b Comparison of geomembrane in taut (a) and wrinkled (b) conditions.
12

A GM-GCL bottom liner system was
constructed for a cell at a municipal solid
waste landfill in California. The landfill

is situated at a location characterized as
being in a temperate, dry summer, warm
summer climate zone (Csb), according to the Köppen-Geiger classification
system (Peel et al. 2007). The cell was
constructed with 2H:1V side slopes.
The length of the slopes ranged from
79 feet (24 m) for the north-facing slope
(i.e., south slope) to 98 feet (30 m) for
the west-facing slope (i.e., east slope).
The geomembrane and the underlying
GCL were placed over a compacted subgrade of native soils. The geomembrane
consisted of a 60-mil (1.5-mm) thick
black HDPE geomembrane, which was
textured on the bottom side against the
underlying GCL and smooth on the top
exposed side. The GCL consisted of a
needlepunched nonwoven product with

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Geosynthetics June/July 2020

Table of Contents for the Digital Edition of Geosynthetics June/July 2020

Geosynthetics June/July 2020 - Cover1
Geosynthetics June/July 2020 - Cover2
Geosynthetics June/July 2020 - 1
Geosynthetics June/July 2020 - 2
Geosynthetics June/July 2020 - 3
Geosynthetics June/July 2020 - 4
Geosynthetics June/July 2020 - 5
Geosynthetics June/July 2020 - 6
Geosynthetics June/July 2020 - 7
Geosynthetics June/July 2020 - 8
Geosynthetics June/July 2020 - 9
Geosynthetics June/July 2020 - 10
Geosynthetics June/July 2020 - 11
Geosynthetics June/July 2020 - 12
Geosynthetics June/July 2020 - 13
Geosynthetics June/July 2020 - 14
Geosynthetics June/July 2020 - 15
Geosynthetics June/July 2020 - 16
Geosynthetics June/July 2020 - 17
Geosynthetics June/July 2020 - 18
Geosynthetics June/July 2020 - 19
Geosynthetics June/July 2020 - 20
Geosynthetics June/July 2020 - 21
Geosynthetics June/July 2020 - 22
Geosynthetics June/July 2020 - 23
Geosynthetics June/July 2020 - 24
Geosynthetics June/July 2020 - 25
Geosynthetics June/July 2020 - 26
Geosynthetics June/July 2020 - 27
Geosynthetics June/July 2020 - 28
Geosynthetics June/July 2020 - 29
Geosynthetics June/July 2020 - 30
Geosynthetics June/July 2020 - 31
Geosynthetics June/July 2020 - 32
Geosynthetics June/July 2020 - 33
Geosynthetics June/July 2020 - 34
Geosynthetics June/July 2020 - 35
Geosynthetics June/July 2020 - 36
Geosynthetics June/July 2020 - 37
Geosynthetics June/July 2020 - 38
Geosynthetics June/July 2020 - 39
Geosynthetics June/July 2020 - 40
Geosynthetics June/July 2020 - 41
Geosynthetics June/July 2020 - 42
Geosynthetics June/July 2020 - 43
Geosynthetics June/July 2020 - 44
Geosynthetics June/July 2020 - 45
Geosynthetics June/July 2020 - 46
Geosynthetics June/July 2020 - 47
Geosynthetics June/July 2020 - 48
Geosynthetics June/July 2020 - Cover3
Geosynthetics June/July 2020 - Cover4
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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
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