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Three challenges in using SRWs and other reinforced-soil structures: Part 3B

August 1, 2008

By Michael R. Simac, P. E., and Blaise J. Fitzpatrick, P. E. Introduction While segmental retaining walls (SRWs) have been routinely used for more than 15 years now, there are still three challenging issues facing owners considering their use. What is the best way to procure, design, and then build these structures to minimize short-term …

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Slope stability sensitivities of final covers

By Richard Thiel Abstract The geotechnical aspects of final cover system slope stability follow the same principles used for other geotechnical stability problems. What is unique and important to recognize, relative to final cover systems, is their sensitivity to relatively small changes in loading, slope angle, pore pressures, or shear strengths that make them more …

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TV reports show use of geotextiles for temporary flood control

Let’s get the word out! By Mark Marienfeld, P.E. June 2008 I have been watching the TV news coverage of the flooding in the Midwest these past few days. What I see is unprecedented, I believe: TV reports showing the use of geotextiles for temporary flood-control dike building. As background, for those not familiar with …

RECP installation demo provided by NAGS, ECTC

By Dave Suits An installation demonstration of temporary rolled erosion control product (RECP) was presented at the annual Highway Superintendents School, sponsored by the Local Technical Assistance Program (LTAP) in Ithaca, N.Y. in June. This annual 2-day school brings together more than 500 New York municipal and county highway superintendents for lectures and demonstrations on …

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GMA Techline’s first 500 Q’s-and-A’s

By Bob Koerner and Andrew Aho Introduction The Geosynthetic Materials Association (GMA) introduced the GMA Techline on Aug. 31, 2004, as a service to those involved with, and interested in, geosynthetics. The Techline is one of the educational services offered by GMA, with the goal of providing fast, free, and direct answers to technical questions …

Lumite acquires Propex plant

Gainesville, Ga.-based geotextiles manufacturer Lumite Inc., a 50% subsidiary of Thrace Plastics Group, has acquired a geotextiles manufacturing plant from Chattanooga, Tenn.-based Propex Inc. The 226,200ft2 Yonah facility, located in Alto, Ga., manufactures specialty manmade fabrics such as geotextiles, monofilament filtration fabrics, protective nets, and recreational fabrics.

Profile names regional sales manager, promotes golf business manager

Pat Holubetz has joined Profile Products LLC as Midwest regional sales manager. Holubetz is replacing Dwight Johnson, who was promoted to Profile Golf business manager. Holubetz supports Profile’s distribution network in the Midwest and will work with new customers. Johnson’s new role as Profile Golf business manager includes working with the Profile Golf Team to …

New GSE sales managers

GSE Lining Technology Inc. (GSE) has added 4 new regional managers to its North American sales team. Dale Geary is now regional sales manager for the Mountain West and Western Canada territory, based in Houston. He recently held the national account operations manager position in GSE’s installation services division. Larry Lydick has joined GSE as …

Bauters joins Golder

Tim Bauters has joined Golder Associates Inc. as a senior project engineer at the company’s Mountain View, Calif. office. Bauters, previously with Tenax Corp., will specialize in solid-waste projects, engineered barriers and geosynthetics, civil and geotechnical engineering, and design, permitting and construction quality assurance. He is a member of the ASTM Geosynthetics Committee D35.

Dow acquires Stevens

Dow Building Solutions (DBS), a business unit of The Dow Chemical Company (NYSE: DOW), has acquired Stevens Roofing and Geomembrane Systems, a business of JPS Industries Inc. Based in Holyoke, Mass., Stevens manufactures reinforced thermoplastic commercial roofing systems as well as polypropylene and polyethylene geomembranes. Dow plans to operate the acquired business as Dow Roofing …