GMA advocating for infrastructure funding

April 1, 2018

Over the past year, infrastructure has been talked about regularly as the “next big issue” for the White House and Congress to tackle. With tax reform out of the way and the midterm elections fast approaching, it is time for Congress and U.S. President Donald J. Trump to act.    On Jan. 30, 2018, during …

Commentary on attribution and referencing in technical papers

In presenting written technical information in academic papers and presentations, including in geosynthetic papers, as well as conference proceedings and presentations, it is established practice for the author to attribute references, data, charts, tables, graphs, photographs, illustrations and concepts back to the initial originator/developer, who under law is the copyright holder to the work simply …

A next-gen basin liner solution for the U.S. Army Corps of Engineers

There are more than 100,000 miles (> 160,000 km) of levees throughout the United States, protecting lives and property from extreme weather-related flooding. Aging infrastructure and increasingly stronger storms have intensified the need to reinforce and protect levees, and emergency responders need solutions to repair a breached levee before it results in catastrophic damage. Therefore, …

2018 State of the Geosynthetics Industry

The U.S. and Canadian geosynthetics market includes geotextiles, geomembranes, geogrids, geosynthetic clay liners, drainage materials, geocells and erosion control materials. In 2017 the U.S. and Canadian geosynthetics market grew in the low single-digit ranges, and it is expected to grow slightly higher in 2018. Consolidation in the geosynthetics market Due to the weaker U.S. dollar …

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Bituminous geomembranes on a French dam

La Galaube Dam, an International Commission on Large Dams (ICOLD) facility in the south of France, completes the hydraulic system of the Montagne Noire area and provides a total water storage capacity in excess of 283 million cubic feet (8 million m3). To supply potable water to three counties and 185 municipalities in the region, …

GMA focus groups

GMA provides technical guidance to outside agencies and groups seeking more information about best practices for the use of geosynthetic products. Our geotextile, geogrid, environmental and erosion control focus groups review specifications and provide industry guidance. In 2017 GMA reviewed specifications for nine states and worked closely with the American Association of State Highway and …

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Reviving the Palos Verdes Reservoir—Part 2

The October/November 2016 issue of Geosynthetics published Part 1 of this series on revitalizing the Palos Verdes Reservoir in Los Angeles County, California. That article described the approach to revitalizing the site, as well as the five-month-long geosynthetic manufacturing and fabrication phase. In Part 2, we continue to explore more of the inner workings for …

IFAI IAA Awards: Dewatering with geotextile tubes in a D.C. tunnel

Completion Date: March 1, 2017 Fabric Name: Flintex™ OS425 Hi-Flo Fabric Producer: Flint Industries In 2013 DC Water in Washington, D.C., awarded the Impregilo-Healy-Parsons joint venture $254 million to design and build the second portion of a large tunnel system. The purpose of the tunneling project was to separately direct wastewater and stormwater to relieve …

IGS-NA news

The following are highlights of the many initiatives of IGS-NA over the last few months. IGS-NA supports Geosynthetics 2019 The North American Chapter of the International Geosynthetics Society (IGS-NA) is proud to support the Geosynthetics 2019 conference, which is organized by the Geosynthetic Materials Association, to be held Feb. 10–13, 2019, at the Marriott Marquis …

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Controlling uplifting gas bubbles in exposed geomembrane-lined ponds—Part 3

Part 1 of this series (Thiel 2017) demonstrated how the size, shape, pressure, and stresses and strains experienced by geomembrane bubbles inflated with gas could be analytically estimated. Part 2 of this series (Thiel 2018) evaluated the considerations for incorporating a gas-venting underdrain below the geomembrane liner. The current, and final, Part 3 of this …