Geosynthetics October/November 2019 - 24

Remediation of a uranium ore residues settling basin

FIGURE 6 Installation of the drainage
layer and mineral sealing layer

The most unfavorable
conditions regarding
loading will occur
during construction
of the cover while
equipment is present
and is applying forces
to the system.

24

Geosynthetics | October November 2019

will be determined by applying reduction factors that take into account creep,
installation damage, joints and connections, environmental chemical impacts,
and dynamic effects, if present. The service life of the geosynthetics was set to
25 years since their use is supposed to be
limited to the construction period. The
most unfavorable conditions regarding
loading will occur during construction
of the cover while equipment is present
and is applying forces to the system. The
traffic loads were set to p = 1.2 pounds
per square inch (8 kN/m²) and the soil
thickness varied from 1 foot (0.3 m) in
the first lift to 6.6 feet (2 m) in the final
design phase. The design was performed

according to Eurocode 7 for the temporary load case.
Since the tailings varied significantly
according to the region of the pond, a
very low undrained shear strength equal
to cu = 0.44 pound per square inch (3 kN/
m2) was chosen to characterize the tailings behavior in the whole pond.
Once the stability check is carried out,
the dimensioning of the anchor trench
was performed by verifying the analysis
against the pullout and/or sliding of the
geosynthetic reinforcement. In fact, the
load of the cover soil is taken from the
reinforcement, which in turn transfers it
to the anchor trench that was accordingly
designed to withstand the acting forces.



Geosynthetics October/November 2019

Table of Contents for the Digital Edition of Geosynthetics October/November 2019

Geosynthetics October/November 2019 - Cover1
Geosynthetics October/November 2019 - Cover2
Geosynthetics October/November 2019 - 1
Geosynthetics October/November 2019 - 2
Geosynthetics October/November 2019 - 3
Geosynthetics October/November 2019 - 4
Geosynthetics October/November 2019 - 5
Geosynthetics October/November 2019 - 6
Geosynthetics October/November 2019 - 7
Geosynthetics October/November 2019 - 8
Geosynthetics October/November 2019 - 9
Geosynthetics October/November 2019 - 10
Geosynthetics October/November 2019 - 11
Geosynthetics October/November 2019 - 12
Geosynthetics October/November 2019 - 13
Geosynthetics October/November 2019 - 14
Geosynthetics October/November 2019 - 15
Geosynthetics October/November 2019 - 16
Geosynthetics October/November 2019 - 17
Geosynthetics October/November 2019 - 18
Geosynthetics October/November 2019 - 19
Geosynthetics October/November 2019 - 20
Geosynthetics October/November 2019 - 21
Geosynthetics October/November 2019 - 22
Geosynthetics October/November 2019 - 23
Geosynthetics October/November 2019 - 24
Geosynthetics October/November 2019 - 25
Geosynthetics October/November 2019 - 26
Geosynthetics October/November 2019 - 27
Geosynthetics October/November 2019 - 28
Geosynthetics October/November 2019 - 29
Geosynthetics October/November 2019 - 30
Geosynthetics October/November 2019 - 31
Geosynthetics October/November 2019 - 32
Geosynthetics October/November 2019 - 33
Geosynthetics October/November 2019 - 34
Geosynthetics October/November 2019 - 35
Geosynthetics October/November 2019 - 36
Geosynthetics October/November 2019 - 37
Geosynthetics October/November 2019 - 38
Geosynthetics October/November 2019 - 39
Geosynthetics October/November 2019 - 40
Geosynthetics October/November 2019 - 41
Geosynthetics October/November 2019 - 42
Geosynthetics October/November 2019 - 43
Geosynthetics October/November 2019 - 44
Geosynthetics October/November 2019 - 45
Geosynthetics October/November 2019 - 46
Geosynthetics October/November 2019 - 47
Geosynthetics October/November 2019 - 48
Geosynthetics October/November 2019 - 49
Geosynthetics October/November 2019 - 50
Geosynthetics October/November 2019 - 51
Geosynthetics October/November 2019 - 52
Geosynthetics October/November 2019 - 53
Geosynthetics October/November 2019 - 54
Geosynthetics October/November 2019 - 55
Geosynthetics October/November 2019 - 56
Geosynthetics October/November 2019 - Cover3
Geosynthetics October/November 2019 - Cover4
Geosynthetics October/November 2019 - Blank1
Geosynthetics October/November 2019 - GeoConf20_1
Geosynthetics October/November 2019 - GeoConf20_2
Geosynthetics October/November 2019 - GeoConf20_4
Geosynthetics October/November 2019 - GeoConf20_5
Geosynthetics October/November 2019 - GeoConf20_6
Geosynthetics October/November 2019 - GeoConf20_7
Geosynthetics October/November 2019 - GeoConf20_3
Geosynthetics October/November 2019 - GeoConf20_8
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