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Designing Reinforced Soil Structures
October 1, 2022 | Q&A: GMA Techline
Q: Why is strain compatibility important in designing reinforced soil walls?
Liner system leakage estimations
October 1, 2022 | Q&A: GMA Techline
Q: What is the anticipated leakage rate through a composite liner (i.e., geomembrane on low-permeability soil) system?
Advanced Textiles Association introduces new logo, division name
October 1, 2022 | Update
As discussed in the June/July issue of Geosynthetics, our association, Industrial Fabrics Association International (IFAI), has selected a new name, Advanced Textiles Association (ATA). And with the new name comes a new logo—as well as a new division name.
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Wick drain installation considerations
October 1, 2022 | Features
Wick drains are one of the most common and cost-efficient ground improvement techniques for soft fine-grained soils. Over the years, there has been substantial development on wick drain design methods; however, construction considerations may have not been sufficiently considered during the design p…
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Geomembrane destructive testing
October 1, 2022 | Features
For almost 40 years, the generally accepted destructive test rate for geomembrane seaming has been one sample for every 500 feet (152 m) of seam. On large projects this leads to hundreds of holes cut into liners that engineers, manufacturers and installers work very hard to make leak proof. With a t…
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Drainage geocomposites and PVC geomembranes for highway tunnel lining
October 1, 2022 | Features
The original design for the primary lining system for the Driskos Twin Tunnel along the Egnatia motorway in Greece, consisting of a PVC plasticized (PVC-P) geomembrane, called for a nonwoven geotextile, 500 g/m², as a puncture protection and drainage layer.
Geosynthetics Conference 2023 announces Robert M. Koerner lecture: A conversation with J. P. Giroud
October 1, 2022 | Events
Few names in the geosynthetics industry hold as much history as Koerner and Giroud. The Geosynthetic Materials Association has named J. P. Giroud, Ph.D., the recipient of the 2022–2023 Robert M. Koerner Award and Lecture Series. This momentous occasion will create a unique opportunity for attendee…
Washington fully open
October 1, 2022 | GMA News
Since mid-summer, the Geosynthetic Materials Association (GMA) has been swamped with conversations related to the Buy American, Build America (BABA) provisions of the Bipartisan Infrastructure Law (BIL) 180-day hold for clarity and definition on the Buy America clauses. GMA members have been meeting…
Green MSE walls and erosion and sediment control applications
October 1, 2022 | ECTC News
Mechanically stabilized earth (MSE) walls are becoming more common in today’s landscape. Keeping soil in place during construction (erosion control), addressing stormwater contaminated with sediment-laden runoff during construction (sediment control), and providing successful revegetation after co…
GSI’s annual Landreth “Steward of the Environment” award
October 1, 2022 | GSI News
The Robert and Mitchell Landreth “Steward of the Environment” award was established in 2021. It is in honor of Robert Landreth (1939–2021) and his wife, Mitchell. The annual award is bestowed by the Geosynthetic Institute (GSI) in recognition of “distinguished engineering achievement related…