Geotextile tubes as submerged breakwaters

August 1, 2014

Improvements in wave transmission reduction for beach restoration By Alfonso Solís Pimentel, González Leija Mariana, Aguilar Escalante Sergio Abstract The north coast of the Yucatán Peninsula in Mexico has been in a regression process for decades. After Hurricane Gilbert (1988) and Isidore (2002), beach erosion increased dramatically. Human actions around the development of harbors and …

Geosynthetics solutions for Australian desalination plant

By Pat Elliott Introduction Climate changes and drought have prompted major coastal cities in Australia, and worldwide, to construct desalination plants large enough to provide major populations with rainfall-independent sources of drinking water. In July 2009 the Australian state of Victoria signed a $3.5 billion contract with a private consortium to finance, design, build, operate, …

Geosynthetics stabilize deteriorating mine roads

Improvements in wave transmission reduction for beach restoration By Branden Reall Introduction The roads of a mine are the arteries through which all products (and by-products) pass. Throughout the day, metals and materials are recovered and large trucks make repetitive, usually slow, trips up and down mine haul roads. While mining companies understand how processes …

Colombia gold mine MSE project

By Chip Fuller Introduction A Canadian firm, Continental Gold Ltd., is a precious metals mining company and it currently operates the largest gold mine in Colombia, the Buriticá project. Mining products provide approximately 20% of Colombia’s exports and 2.5% of its GDP. The Buriticá project covers more than 13,500 hectacres (33,345 acres) and is located …

Void bridging with specialty geosynthetics and thin covers

By Brian Baillie Introduction Geologic or hydraulically formed cavities and sensitive utility trenches are sometimes a concern on construction, mining, and environmental containment sites. Naturally formed or man-made openings such as these can complicate the design and performance of overriding structures or create restrictions with site access. They can also create significant safety issues for …

Designing to minimize geomembrane leakage

By Abigail Beck Introduction Specifying a geomembrane as a barrier system component for a containment facility seems like a straightforward task. Once a geomembrane is specified, the containment facility won’t leak, right? The reality behind geomembrane installations is that the ultimate performance of an installed geomembrane ranges from completely ineffective to highly effective. What creates …

Government relations delivers success & long-term benefits

By Lucie Passus A major win for the geosynthetics industry, GMA It is official: For the first time in U.S. history, the phrase ‘geosynthetic materials’ appears in federal law in the newly enacted Water Resources Reform and Development Act (WRRDA) signed by President Obama on June 10, 2014. This is exciting and important for the …

“Educate the Educators”: A retrospective

1994–1998 at Auburn University By Bob Koerner For a week during five summers, 1994–1998, geosynthetic seminars were held at Auburn University in Auburn, Ala., under the general title “Educate the Educators.” The host, coordinator, and facilitator was Prof. Dave Elton of Auburn’s Civil Engineering Department. For each course, a series of 8–10 experts presented various …

Allowable stress on geonets based on laboratory creep tests

By Dhani Narejo and Sam Allen Introduction This article focuses on biplanar geonets to the extent of the possible tendency for the two sets of integrally joined ribs to roll over on one another while load is applied. The significance of such a rollover is a reduced transmissivity value as compared to that obtained from …

Tensar acquired by Castle Harlan

By Ron Bygness Atlanta-based Tensar Corp. announced in a July press release that it has been acquired by Castle Harlan Inc., a middle-market private equity firm. Tensar is a worldwide manufacturer of geosynthetics, including geotextiles, geogrids, and drainage and erosion control materials. The release said that Castle Harlan, founded in 1987, is a global private …