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 […]

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NAUE geosynthetics secure German road embankment over old mining area

November 2nd, 2021

Photograph courtesy of NAUE The German federal highway B91 between the cities of Deuben and Werschen in Germany is a collector road with access to the A9 motorway. The subsoil risks resulting from past lignite mining activities represent an enormous challenge in the region. Subsidence has occurred regularly. Solution In the area of a bridge […]

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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 […]

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GSI to host webinar on soil consolidation using wick drains

November 13th, 2019

The Geosynthetic Institute (GSI) will sponsor a webinar, “Soil Consolidation Using Wick Drains, aka PVDs,” on Nov. 27, from 11:30 a.m. to 1 p.m. EST. 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 or PVDs, consist […]

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The magic of water and geosynthetics

February 1st, 2019

Water is a fundamental issue in many projects using geosynthetics. From erosion control to reservoir liners and covers, from landfill leachate pond barriers to coal ash dewatering, handling water and the effects of water are considerations nearly every engineer employing geosynthetics considers. Geosynthetics can effectively manage water applications of erosion control, reinforcement, barriers, filtration and […]

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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, […]

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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 […]

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The GMA Techline answers all

August 1st, 2018

UV Weathering of Geotextiles Q: My firm is providing construction quality assurance services for a landfill cell expansion. We are having an issue with our contractor and are going to be in a position of having 8 ounces/square yard (271 g/m2) of nonwoven geotextile exposed for a period of time, which exceeds the seven-day limit […]

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Geosynthetics Institute webinar calendar for 2018; GMA members get discount

July 9th, 2018

July–December 2018 | 11:30 a.m.–1 p.m. EDT Duration: 1.5 hours GSI/GMA Members: $200.00 USD per webinar Non-GSI/GMA Members: $250.00 USD per webinar The Geosynthetic Materials Association (GMA) is proud to promote Dr. Robert M. Koerner and the Geosynthetic Institute (GSI) education program. Dates of upcoming and future GSI webinars, which are designed to enhance and grow your knowledge of the industry, follow. […]

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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 […]

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