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Crimping prefabricated vertical drains
October 1st, 2023
Q: Can you enlighten me of any work related to the crimping of prefabricated vertical drains (PVD) as a result of soil consolidation and settlement of harbor sludge or dredge spoil? We are anticipating 3 feet (1 m) of settlement in 30 feet (10 m) of sediment (sludge/spoil). A: I would recommend the following two […]
Wick drain ground improvements
August 1st, 2022
Editor's note: This is part 1 of a two-part article. Part 2 will appear in the October/November issue of Geosynthetics. FIGURE 1 Wick drain installation Construction of a large mine waste stockpile was required at the Rainy River Mine in Ontario, Canada. The mine rock stockpile foundation has up to 131 feet (40 m) thick […]
GSI to host webinar on soil consolidation using wick drains
October 12th, 2020
The Geosynthetic Institute (GSI) will sponsor a webinar, “Soil Consolidation Using Wick Drains, aka PVDs.” on October 28, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Wick drains, also called prefabricated vertical drains (PVDs), consist of […]
GSI to host webinar on wick drains, GMA members get discounted rates
November 12th, 2018
The Geosynthetic Institute (GSI) will sponsor a webinar entitled “Soil Consolidation Using Wick Drains, aka PVDs” on Nov. 14, from 11:30 a.m. to 1 p.m. EST. The webinar will be hosted by Dr. Robert M. Koerner. GMA member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Wick drains, […]
Geosynthetics and coal combustion residuals
October 1st, 2018
According to the World Bank Group, in 2015 coal produced 41% of the world’s energy and about 34% of the energy production in the United States. While global warming and pollution are serious challenges according to most scientific evidence, and coal burning is cited as one cause of both, there are many staunch advocates of […]
GSI’s Koerner to host webinar on the development of geosynthetic drainage, GMA members get discounted rates
August 21st, 2018
The Geosynthetic Institute (GSI) will sponsor a webinar entitled “Sand Drains-to-Wick Drains-to-Sand Columns,” on Sept. 12, from 11:30 a.m. to 1 p.m. EDT. The webinar will be hosted by Dr. Robert M. Koerner. GMA member companies and their employees receive discounted rates on all GSI webinar and short course registrations. This webinar will begin with […]
GSI offers webinar on sand drains, wick drains and geotextile sand columns
August 1st, 2017
The Geosynthetic Institute (GSI) will offer a webinar on “Sand Drains-to-Wick Drains-to-Sand Columns,” on August 9, 2017, from 11:30 a.m. to 1 p.m. EDT. This webinar will begin with Terzaghi’s work (extended by Barron) leading directly to consolidation of saturated soils using the technique of sand drains. It then describes a case history failure resulting […]