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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GMA Techline

August 1st, 2017

Liner repair? Pullout tests? Sewn seams? Shear strength of sludges? Geomembrane liner repair Q: I have a facility that has submitted liner repair documentation for the repair of a high-density polyethylene (HDPE) liner for a leachate/stormwater pond at an industrial landfill site. The repairs were performed using either a patch or, for indentations and small […]

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GSI offers webinar on in-situ stabilization of slopes using anchored geosynthetics

July 6th, 2017

The Geosynthetic Institute (GSI) will offer a webinar on “In-Situ Stabilization of Soil Slopes Using Nailed or Anchored Geosynthetics,” on July 6, 2017, from 11:30 a.m. to 1 p.m. EDT. The sliding of soil slopes in the form of localized landslides represents an annual loss of $2 to 5 billion in America, not to mention […]

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GSI offers webinar on geosynthetic applications in the private sector

June 26th, 2017

The Geosynthetic Institute (GSI) will offer a webinar on “Geosynthetic Applications in the Private Sector,” on June 28, 2017, from 11:30 a.m. to 1 p.m. EDT. In the past, the geosynthetics industry has focused on the major application areas within transportation, environmental, and hydraulic engineering. Yet, many smaller application areas are also important and noteworthy. […]

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Geosynthetics Institute News

June 1st, 2017

Robert M. Koerner on his namesake award and lecture series On March 14, 2017, at the Geotechnical Frontiers conference in Orlando, Fla., George Koerner graciously accepted the Robert M. Koerner Award and Lecture Series. The biennial award and lecture series were established by the Geosynthetic Materials Association (GMA) Executive Council; Koerner was the first recipient. […]

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Avoiding geomembrane whales and hippos in surface impoundments

April 25th, 2016

The incidence of geomembrane whales/hippos in surface impoundments containing various types of liquids is, unfortunately, not uncommon. See, for example, GSI White Paper #30, which discusses corrective actions after they occur. This article, however, addresses the situation before it occurs. Clearly, the presence of a geomembrane creates anomalies in the underlying subgrade that can cause […]

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Comparison testing of geosynthetic drainage products

February 1st, 2016

Unlike ASTM D6364 “Standard Test Method for Determining Short-Term Compression Behavior of Geosynthetics,” ASTM D1621 “Standard Test Method for Compressive Properties of Rigid Cellular Plastics” is a testing standard designed to measure the compressive properties of rigid cellular plastics (i.e., foam), not geocomposite drainage products. Unfortunately, the geosynthetic community has been saddled with this test […]

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The 2nd International GSI–Asia Geosynthetics Conference

October 1st, 2015

Some of you know that the Geosynthetic Institute (GSI) and Inha University, Incheon, Korea (Rep.), have had an association for more than 20 years. In June, we advanced this relationship during the 2nd International GSI–Asia Geosynthetic Conference. The conference chairman was Prof. Han-Yong Jeon of Inha University, the conference secretary was Dr. Jungjo Yuu of […]

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