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MSE wall failures vis-à-vis the lack of filtration design
April 1st, 2017
Since 2001, the Geosynthetic Institute (GSI) has been accumulating data on failures of geosynthetic-reinforced mechanically stabilized earth (MSE) retaining walls. We currently have 301 cases, with 191 (63%) caused in whole or part by water in, or adjacent to, the reinforced soil zone. We sincerely hope that our past writings and webinars are helping to […]
Upcoming event: Educate the Educators (EtE) 2017
April 1st, 2017
IGA–NA has been an active participant in this geosynthetics training program for engineering professors. Many schools do not teach geosynthetics because their instructors may not have the knowledge, confidence, or materials to effectively teach it. Educate the Educators (EtE) provides specialized, hands-on training and lecture materials to equip professors to offer effective geosynthetics content at […]
GMA Lobby Day coming at the perfect time for the geosynthetics industry
April 1st, 2017
Looking ahead Don’t forget to join the Geosynthetic Materials Association (GMA) for its upcoming D.C. fly-in on April 26–27. Our biannual Lobby Day will consist of a GMA briefing dinner the evening of April 26 and about 30 meetings on Capitol Hill all day April 27. The GMA Executive Council will also hold a private […]
PART 1 ‘Geosynthetic reinforced soil 101’ leading to rational design of MSE walls and slopes
April 1st, 2017
Introduction The design of many geotechnical structures is based on limit state conditions. For example, in designing gravity walls, the load exerted by the retained soil on the wall is based on an assumed active state of stresses. That is, the wall moves sufficiently outward, enabling the retained soil to mobilize its shear strength along […]
Handing over the reins
April 1st, 2017
The stellar reputation of Geosynthetics magazine is due to its reporting on innovative solutions to complex problems, publishing well-researched articles written by experts in their fields, and consistently putting in print reliable and relevant information for engineers, project managers, and employees of companies engaged in geosynthetics. This is largely due to the 11-year stewardship of […]
2017 State of the Specialty Fabrics Industry
April 1st, 2017
The U.S./Canadian geosynthetics market includes geotextiles, geomembranes, geogrids, geosynthetic clay liners, drainage materials, geocells, and erosion control materials. In 2016, the size of the U.S./Canadian geosynthetics market was $2.6 billion, up 3.5% over 2015. It is expected to swell to $2.7 billion in 2017, up 4% compared to 2016. In a survey of Geosynthetic Materials […]
Flood impact reduction and streambank repair along Spy Run Creek
April 1st, 2017
Background Spy Run Creek in Fort Wayne, Ind., is a 10-mile watercourse that drains several square miles on the northwest side of Fort Wayne. Spy Run Creek empties into the St. Mary’s River in downtown Fort Wayne, just upstream from its confluence with the St. Joseph River. The St. Mary’s and the St. Joseph rivers […]
Geotechnical Frontiers a Success
April 1st, 2017
The 2017 Geotechnical Frontiers conference in Orlando, Fla., drew thousands to “The City Beautiful” Mar. 12–15, 2017, for four days of plenary lectures, awards honoring distinguished geosynthetics experts and work on innovative geosynthetics projects, panel discussions, technical sessions based on more than 360 peer-reviewed papers, and a buzzing trade show floor with manufacturers displaying their […]
Dave Suits launches LDS Geosynthetics Consultant Services
April 1st, 2017
As of December 2016, L. David Suits is doing business as LDS Geosynthetics Consultant Services. Well-known in the industry, Suits has more than 40 years of experience with geosynthetics. He retired in 2005 from the New York State Department of Transportation (NYSDOT) where he oversaw the testing and acceptance of all geosynthetics for use on […]
Long-term durability of geomembrane material and seams
April 1st, 2017
Introduction The Fabricated Geomembrane Institute (FGI), formerly the PVC Geomembrane Institute, in collaboration with the Minnesota Department of Natural Resources (Minn. DNR), has been conducting a study assessing the long-term durability of PVC geomembranes. Samples of three different 30-mil PVC geomembranes were placed at the bottom of a settling basin near the northern Minnesota town […]