Geosynthetics February/March 2020 - 25

which would help reduce the geogrid
lengths and the subsequent excavation
width required while still supporting
the high surcharge loads from crane
operation during construction. Internal
and external stability analyses indicated
that a uniaxial geogrid product, placed
at 1.5-foot (0.5-m) vertical intervals at
lengths equal to 90% of the RSS height,
was required. At the RSS face, a relatively high-tenacity polypropylene multifilament woven geotextile was used as
a wrap to retain the granular material.
The geotextile was placed inside of a
1.5-foot (0.5-m) tall galvanized welded
wire basket that was used to help form
the facing. Each basket was placed at a
1-inch (2.5-cm) horizontal offset to keep

the RSS tolerance within the 5-foot (1.5m) maximum void span length at the
top of the RSS. A typical RSS section is
shown in Figure 2, while the RSS facing
is shown in Figure 3.

RSS design and
construction challenges
There were some unique design and
construction challenges associated with
the RSS.
A portion of the RSS had to be constructed to align with a descending chevron concrete structure that was supported
on grade beams on H-piles. The RSS had
to turn multiple 90˚ outside corners and
ascend at a specific angle to be able to

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www.GeosyntheticsMagazine.com

25


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Geosynthetics February/March 2020

Table of Contents for the Digital Edition of Geosynthetics February/March 2020

Geosynthetics February/March 2020 - Cover1
Geosynthetics February/March 2020 - Cover2
Geosynthetics February/March 2020 - 1
Geosynthetics February/March 2020 - 2
Geosynthetics February/March 2020 - 3
Geosynthetics February/March 2020 - 4
Geosynthetics February/March 2020 - 5
Geosynthetics February/March 2020 - 6
Geosynthetics February/March 2020 - 7
Geosynthetics February/March 2020 - 8
Geosynthetics February/March 2020 - 9
Geosynthetics February/March 2020 - 10
Geosynthetics February/March 2020 - 11
Geosynthetics February/March 2020 - 12
Geosynthetics February/March 2020 - 13
Geosynthetics February/March 2020 - 14
Geosynthetics February/March 2020 - 15
Geosynthetics February/March 2020 - 16
Geosynthetics February/March 2020 - 17
Geosynthetics February/March 2020 - 18
Geosynthetics February/March 2020 - 19
Geosynthetics February/March 2020 - 20
Geosynthetics February/March 2020 - 21
Geosynthetics February/March 2020 - 22
Geosynthetics February/March 2020 - 23
Geosynthetics February/March 2020 - 24
Geosynthetics February/March 2020 - 25
Geosynthetics February/March 2020 - 26
Geosynthetics February/March 2020 - 27
Geosynthetics February/March 2020 - 28
Geosynthetics February/March 2020 - 29
Geosynthetics February/March 2020 - 30
Geosynthetics February/March 2020 - 31
Geosynthetics February/March 2020 - 32
Geosynthetics February/March 2020 - 33
Geosynthetics February/March 2020 - 34
Geosynthetics February/March 2020 - 35
Geosynthetics February/March 2020 - 36
Geosynthetics February/March 2020 - 37
Geosynthetics February/March 2020 - 38
Geosynthetics February/March 2020 - 39
Geosynthetics February/March 2020 - 40
Geosynthetics February/March 2020 - 41
Geosynthetics February/March 2020 - 42
Geosynthetics February/March 2020 - 43
Geosynthetics February/March 2020 - 44
Geosynthetics February/March 2020 - 45
Geosynthetics February/March 2020 - 46
Geosynthetics February/March 2020 - 47
Geosynthetics February/March 2020 - 48
Geosynthetics February/March 2020 - 49
Geosynthetics February/March 2020 - 50
Geosynthetics February/March 2020 - 51
Geosynthetics February/March 2020 - 52
Geosynthetics February/March 2020 - Cover3
Geosynthetics February/March 2020 - Cover4
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