270m-Long Reinforced Soil Structure for a South African Highway

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By Maccaferri – When the improvement works to the main road P728 in the Umgababa area were approved by the eThekwini Municipality, KwaZulu-Natal Province, South Africa, a mechanically stabilized earth (MSE) wall was needed to complete the project. Maccaferri designed and supplied a 270m-long, 9m-high reinforced soil structure using the Terramesh® System reinforced with ParaGrid® primary geogrid. T... »

The Year So Far: Most Popular Geosynthetics Stories

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We’ve rounded the corner into the second half of 2017, so it’s time to take stock of what Geosynthetica’s readers have made our most popular geosynthetics stories. Last year was the publication’s biggest year in overall unique readers and in page views, and 2017 has sustained that momentum. We are currently trending another 18% higher on 2016 and 65% greater than in this same period in 2015.... »

MSE Wall Failures vis-à-vis the Lack of Geotechnical Filters

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By Dr. Robert M. Koerner – Since 2001, the Geosynthetic Institute has accumulated data on failures of geosynthetic-reinforced mechanically stabilized earth (MSE) retaining walls. Our MSE wall failures database presently has 301 cases, of which 191 (63%) have been caused in whole or part by water within, or adjacent to, the reinforced soil zone. We sincerely hope that our past writings and webinars... »

Hydraulic Engineering Solutions Seminar, July 14

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Waterways are dynamic environments. Strong hydraulic engineering solutions are needed to create resilient infrastructures that minimize environmental impact, control costs, and provide long-term performance. On July 14, Maccaferri will host  an exclusive breakfast seminar (7:30 am – 11:00 am) in Gaithersburg, Maryland focused on the application and design of hydraulic solutions. The seminar is fre... »

Secondary Geogrid Reinforcement in MSE Walls

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By Paul C. Frankenberger, P.E.; Matthew M. Merritt, P.E.; and Mark Myers, P.E. – The concept of secondary geogrid layers located at the face of a mechanically stabilized earth wall is similar to the use of secondary geogrid reinforcement in MSE reinforced slopes. In slopes, the secondary geogrid layers are used to stabilize the slope face between the primary geogrid layers. The result is closely s... »

Why Geosynthetics Matter for the Future of American Infrastructure

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The American Society of Civil Engineers has just released the 2017 Report Card on American Infrastructure. As expected, the Society finds that the nation’s current infrastructure is grossly underfunded and in need of significant repair. One of the surprises in the report card—particularly to geosynthetics professionals—is that solid waste management has been downgraded. Solid waste has routinely b... »

Project Video: GRS Structure for Major Greek Cultural Center

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One of the world’s leading architects, Pritzker Prize-winning visionary Renzo Piano, has led the development of Greece’s newest cultural treasure: the Stavros Niarchos Foundation Cultural Center. The site, which will host a high-profile park and vital institutions such as the National Library of Greece and the Greek National Opera, is made structurally possible in part by the development of a larg... »

A Primer on Soil and Geotextile Filter Design for MSE Walls

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Drs. Robert and George Koerner of the Geosynthetic Institute (GSI) are no strangers to tackling challenging topics—subjects which are either difficult to motivate discussion on (e.g., failures) or difficult to document (e.g., developing and monitoring long-term studies). One of the information-sharing vehicles they’ve utilized over the years to keep information flowing has been to release influent... »

Bridge Approach Embankment with MSE Walls and Pulverized Fuel Ash

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By Chaido (Yuli) Doulala-Rigby and Martin Black – For a new major road construction (the Tinsley Link) in the North of England, a bridge approach embankment needed to be designed and constructed. A 500m-long mechanically stabilized earth (MSE) wall on piled foundations was proposed, one that would utilize geogrid reinforcement and enable the beneficial use of pulverized fuel ash (PFA). The P... »

GSI Webinar: MSE Wall Remediation and Monitoring

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The Geosynthetic Institute (GSI) has a strong background in providing education and resources on all types of geosynthetics; but GSI is particularly versed in retaining wall-related education. The monthly GSI Webinars are presented on the second Wednesday of a month. The next offering (November 9, 11:30 am – 1:00 pm (EST)) will focus on “MSE Wall Remediation and Monitoring.” This particular webina... »

IGS-NA/NCMA Segmental Retaining Wall Best Practices Webinar

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IGS North America (The North American Chapter of the International Geosynthetics Society: IGS-NA) and the National Concrete Masonry Association (NCMA) are co-hosting an October 26 webinar. The topic: Segmental Retaining Wall Best Practices. The session will be held from 1:00 – 2:30 pm (EDT) and is worth 1.5 PDHs. Scott Vollmer, P.E. (Oldcastle) will serve as the instructor. He brings an extensive ... »

MSE Walls Engineered for Oil Drilling Operations

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Molisht is an underground resource-rich area in Berat, Albania. Numerous important oil and gas wells are found there. For an energy plant, Maccaferri engineered retaining wall solutions to support the site’s oil drilling works. The Molisht-1 well has the potential to produce 8,000 – 10,000 barrels of oil per day. It is considered a crucial supply point for the owner. Over a 9-month period, the com... »

Embankments on Soft Soils Webinar – September 22

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Lilma Schimmel, MSCE, P.E., will lead a September 22 webinar on Embankments on Soft Soils. This free event—pre-registration required—is sponsored by HUESKER. Date: September 22 Time: 2:00 pm (EDT) Cost: Free PRE-REGISTER ONLINE Regarding the 20-minute webinar, which will be followed by Q&A, Schimmel writes: The construction of embankments on soft soils can be very challenging from both the des... »

Geosynthetic Institute Announces 2016 – 2017 Fellowships

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The Geosynthetic Institute (GSI) has announced the winners of the 2016 – 2017 GSI Fellowships. The annually awarded research grants are giving out, in consultation with the GSI Board of Directors, to master’s and doctoral level applicants studying geosynthetics. GSI’s program issues numerous awards, each of USD $5,000, during the fellowship awards cycle. Candidates with a vision of longer-term res... »

Runways and Reinforced Structures for Tana Toraja

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Every year in the South Sulawesi Province of Indonesia, thousands of tourists visit to admire the breathtaking landscape and places of rituals and ceremonies of the Toraja ethnic group. The Toraja people live in an area known as Tana Toraja. Until now travelers have had to endure an arduous and uncomfortable eight hour journey, 300 km north of the city of Makassar. In 2014, the Indonesian governme... »

GeoAmericas 2016 Proceedings Now Available

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The GeoAmericas 2016 Proceedings have been released to the engineering community. The conference, which was the 3rd Pan-American Conference on Geosynthetics, was held 10 – 13 April 2016 in Miami. More than 1100 participated in the event, which featured 200+ presentations, 95 exhibitors, multiple high-level sponsors, 49 technical sessions, and 4 keynote addresses. The GeoAmericas 2016 Proceedings h... »

VIDEO: Rockfall Protection Wall in Val d’Isère

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Last year Geosynthetica profiled NAUE’s rockfall protection wall design in Val d’Isère, a renowned winter sports region in Southeastern France. Now, the company has released video of the construction and finished work. The geosynthetic reinforcement project enabled the Val d’Isère area, situated at 1800m above sea level, to host World Cup skiing this past winter. The Val d’Isère Projec... »

Major Savings in Modular Assembly Yard Construction

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By Nilex – For the Lac La Biche community, located 220 km north of Edmonton, Alberta, the surge in oil sands development has been accompanied by a more disciplined approach to planning and cost controls. A major part of those cost controls is in the design and execution of modular construction. When Lac La Biche Transport required a cost-effective solution for a low maintenance, unpaved yard, Nile... »

Retaining Walls Program at GeoAmericas 2016

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When GeoAmericas 2016 convenes in Miami, April 10 – 13, it will feature a robust retaining walls program. The related short courses, panel discussions, training lectures, and retaining walls program papers are listed below. Additionally, wall, embankment, and slope sector participants will have access to more than 100 affiliated engineering and construction presentations and an exhibit hall ... »

HUESKER to Unveil New Mining Brochure at Mining Indaba

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When the Investing in African Mining Indaba conference convenes in Cape Town, South Africa 8 – 11 February 2016, geosynthetics manufacturer and engineering services provider HUESKER will be on hand. The company will also unveil a new mining brochure at the Mining Indaba™ show. The event is an annual gathering with a considerable focus on raising and controlling capital costs in mine development an... »

Project Story: Reinforcing Mine Crusher Walls

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By Maccaferri – Serajuddin Mines wanted to build a central ore handling plant at its facility in Joda, Orissa, in India. Joda is a city in the Kendujhar district of the state. It is an area that has rich iron ore deposits and the economy centres on the large-scale production of steel. SERAJUDDIN MINES To facilitate the construction of the plant infrastructure, access works were required to a... »

Geosynthetic Institute Announces 2015 – 2016 Fellowship Awards

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The Geosynthetic Institute (GSI) has a long and successful record of promoting geosynthetics research in university engineering programs through is GSI Fellowship Awards program. The 2015 – 2016 Fellowship Awards further extended the reach of eligible candidates, opening for the first time to Master’s Degree students too instead of only doctoral candidates. The outreach was a huge success, broaden... »

Strata Adds Phil McGoldrick as International Sales Manager

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Strata Systems has grown significantly in its international presence in recent years. Growth has followed a steady and diverse plan in developing product lines (e.g., StrataWeb®), investing in emerging markets (e.g., Indian and Brazilian infrastructure), and adding people. The company has just announced the addition of an industry veteran as Strata’s new International Sales Manager: Phil McGoldric... »

Railway Engineering Focus in Geofabrics Journal

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The February 2015 issue of Geofabrics Journal, published by Geofabrics Australasia, includes a significant focus on railway engineering, including project notes and the many geotechnical solutions within them that utilize geosynthetics. The rounded view of rail works profiles materials, issues of track and subsoil integrity, and Australia’s infrastructure needs—all of which can be extended to unde... »