Geosynthetics August/September 2020 - 36

PVC sheet piling for cutoff and containment barriers

FIGURE 7 Aerial view of the PVC sheet pile
cutoff wall alignment at Elementis

30-inches (76-cm) wide. This width
minimizes the number of interlocks
in the barrier wall as well as reduces
the number of driving episodes for
the contractor, thereby expediting the
installation speed. The 32-foot (10-m)
long sheet piles were installed into difficult soil conditions by a geotechnical contractor using a steel mandrel.
The 1,000-linear-foot (305-m) wall was
installed in November 2009 (Figure
7). Numerous monitoring wells were
established around the site, and the
groundwater is sampled on an ongoing
basis to confirm the effectiveness of the
barrier wall.
36

Summary and conclusions
PVC sheet piling and its compatibility
with hydrocarbons, solvents and common fuel additives is often misunderstood in the context of real-world
contamination levels. It has been demonstrated that concerns over compatibility using commonly available compatibility charts is not the right approach.
PVC sheet piling has been used successfully for cutoff and containment applications on sites where organic containments are present.
Even in difficult soil conditions,
PVC sheet piling can be installed effectively and efficiently using the right

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Geosynthetics August/September 2020

Table of Contents for the Digital Edition of Geosynthetics August/September 2020

Geosynthetics August/September 2020 - Cover1
Geosynthetics August/September 2020 - Cover2
Geosynthetics August/September 2020 - 1
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