GeoPASS II Offers a Strong Geotechnical Program – October 11

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Last year, Charlotte, North Carolina-based HUESKER hosted a high-level, invitation-only geosynthetics technical networking event called GeoPASS. The inaugural series delivered top-tier lectures and perspectives on diverse topics such as the Limit Equilibrium Design Framework, coal ash disposal, contractor’s views on geosynthetics in geotechnical engineering, and more. GeoPASS II, to be held Octobe... »

Post-Harvey Impact on Geosynthetics Manufacturing

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At its peak and not long before it made landfall in Rockport, Texas, Hurricane Harvey was rated a Category 4 storm. It was the first major hurricane to make landfall on the Texas Gulf Coast in 12 years, and in doing so it caused an enormous amount of damage to infrastructure in Houston, which is a major center of production for petrochemicals and geosynthetics manufacturing in the United States. B... »

Strata’s New Geotechnical Software Focuses on GRS Design

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The recently launched StrataPro™ geotechnical software platform from Strata Systems, Inc. is a welcomed addition to the tools engineers can use to improve GRS design. Geosynthetically reinforced soil structures can improve the sustainability, economics, and safety of infrastructure, but they require significant care in planning and material selection. Programs such as StrataPro provide that suppor... »

PODCAST: Bob Mackey on the State of Geosynthetics Education

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A few years ago, the International Geosynthetics Society revived its Educate the Educators program. The initiative was developed in the early 1990s to help educate engineers, regulators, and academics about geosynthetic materials, which were flourishing in field use. More than 20 years later, the field of geosynthetics had grown enormously—but how to engineer with these materials had not become st... »

Geocell-Supported Design Restores Indian Highway

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By Strata Geosystems (India) – Several days of torrential rain in March 2016 completely destroyed a stretch of National Highway 44 (NH-44) in India. The roadway is the main throughway for commercial traffic to the State of Tripura. The failed road zone was located on the Assam side of the Assam-Tripura border. A geocell-supported road solution was specified to repair the damage quickly. The ... »

GeoAfrica 2017 Releases Promotional Video

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GeoAfrica 2017 will be held 8 – 11 October 2017 in Marrakech, Morocco. The conference, which is centered on the theme of “Geosynthetics in Sustainable Development in Africa”, is the 3rd African Regional Conference on Geosynthetics, following installments in South Africa (2009) and Ghana (2013). It will be held under the auspices of the International Geosynthetics Society(IGS) and hosted and organi... »

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... »

PODCAST: Zornberg on Differing MSE Design Frameworks

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Mechanically stabilized earth walls have been the subject of the most read stories on Geosynthetica this year and a few of the most read stories in 2016 as well. This past spring, some of that field interest in MSE design became the focus of a unique meeting at the Geotechnical Frontiers 2017 conference. There, the ASCE Geo-Institute Technical Committee on Geosynthetics brought together leading MS... »

New Leadership for Strata Systems as Fuller, Enger, Butchart Retire

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On the heels of establishing some dramatic global growth, Strata Systems, Inc. co-founders Chip Fuller (President) and Rich Enger (General Manager) have announced their impending retirement. Craig Bell, an industry veteran who currently serves as Strata Systems Northeast Regional Sales Manager, will transition in the role as General Manager. Also announcing his retirement is the company’s long-tim... »

Southeast Asian Geotechnical Society 50th Anniversary Symposium

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The Thai Geotechnical Society will host the Southeast Asian Geotechnical Society’s 50th Anniversary Symposium. The international event, featuring 35 invitation-only presentations, will be held 14 – 15 September 2017 at the Asian Institute of Technology (AIT) Campus in Bangkok. Key topics include transportation geotechnics, slope stability and stabilization technologies, embankment desi... »

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.... »

Defining Interaction Flexibility for Geogrid-Reinforced Structures

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By HUESKER – Key properties in effective geosynthetic reinforcement are adequate tensile stiffness and tensile strength coupled with good interaction behavior. The relatively new technical term interaction flexibility introduces a previously disregarded aspect: the flexibility of the geogrid in a reinforced structure. This property has been shown to improve the interaction between soils and the ge... »

Geotextile-Encased Stone Columns for Railway Passage MSE Walls

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Cobramseg is a biennial geotechnical engineering event in Brazil that combines multiple national and international engineering conferences. It’s one of South America’s most important engineering gatherings. At the 2016 edition, Ana Carolina Portela Costa, Ary Franck Baia Cordeiro, Leonardo Campos Dias, and Julián Buriticá García of Dinamiza Consultoria e Engenharia Ltda and Renato Pinto da Cunha o... »

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... »

Geosynthetic Reinforcement for Wind Energy

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Subsidies and federal energy policies get most of the headlines, but with the increasing size of wind turbines and the scale of wind farms, few sites can be developed without soil reinforcement technologies. Geosynthetics provide the stable base for construction works and long-term access on wind energy sites. On-shore wind turbine hub heights increasingly crest 100m, and some are approaching 150m... »

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... »

The Geotechnical Poetry of Mary Nodine

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Geotechnical engineering requires a lot of waiting. You wait on calls, test results, the weather. You wait on a construction activity to finish, on software to complete extremely complex models, on site assessments to be signed off on. You wait in labs and airports, on calls, in lobbies. So what to do with all that waiting? Sometimes, you let the mind wander. It may just take you to geotechnical p... »

Congratulations, Joel Sprague and Grace Hsuan

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Two of the geosynthetics field’s most respected figures, Joel Sprague and Grace Hsuan, were honored on Thursday, June 15, at the ASTM International Committee D35 on Geosynthetics meetings in Toronto. JOEL SPRAGUE TRI Environmental‘s Senior Engineer Joel Sprague received the ASTM Award of Merit, a prestigious honor that earns him the title of Fellow. In a release from ASTM, Committee D3... »

Geosynthetic Technology Seminar Schedules Three Stops in Australia/NZ

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The International Geosynthetics Society Australasian Chapter will host a multi-city seminar series on geosynthetic technology in water containment, waste disposal facility rehabilitation, and tunnelling. The seminar will be held in Auckland (New Zealand) on June 26, Melbourne (Australia) on June 28, and Brisbane (Australia) on June 30. Speaker and topic info is included below. DOWNLOAD THE EVENT F... »

PODCAST: Robert Bowers on Geosynthetics in Segmental Concrete Pavements

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The Interlocking Concrete Pavement Institute published its Tech Spec 22 this year. The document provides general guidelines on the use of geosynthetics within segmental concrete pavements. ICPI’s Director of Engineering Robert Bowers, P.Eng, spoke to Geosynthetica about the publication and the growing role of interlocking concrete pavement technologies, performance of these systems, sustainability... »

Geosynthetics Education: A Case Study

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By Preston Kendall – The International Geosynthetics Society has set a goal of getting geosynthetics engineering information into undergraduate civil engineering programs. This is being accomplished in part through the international Educate the Educators program and the newly created Educate the Students program. The larger task of outreach is certainly ambitious.  The fields of civil and geotechn... »

Titan Environmental USA Opens Houston Office

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After a string of product development and research updates, Titan Environmental has announced a new Texas-based office for its US division. Titan Environmental USA has established an office in the Brittmoore Tanner Office Park in Houston. The company reports that industry veterans Robert West and Sonja Wilkerson will head up the location’s sales and administration. Both West and Wilkerson previous... »

A Geosynthetic Solution for Tehran Highway Wall

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By Maccaferri – For a 33m-high, 300m-long retaining wall along the new Tehran North Highway, a composite geosynthetic solution from Maccaferri is being utilized. This geosynthetic approach has enabled the project team to avoid construction of a bridge or a traditional concrete wall, and in doing so has made the works more cost-effective while simplifying the installation. The ongoing construction ... »

Reinforcing India’s First Vertical Expansion of a Landfill

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The city of Vapi in the state of Gujarat, India, has a deep industrial history, with chemicals, pesticides, dyes, textiles, and other sectors active in the municipal area. Though such heavy industrial activity presents environmental challenges, Vapi is excelling due to its sustained effort over the last decade to continuously elevate its environmental performance. One of the signature projects in ... »

VIDEO: Reduction Factor for Creep Rupture Behavior of Geosynthetics

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In HUESKER’s May 2017 videocast, engineer Christoph Hessing discusses a highly important reduction factor that engineers must know to properly design with geosynthetics: creep rupture. This is essential to understanding soil reinforcement. “The purpose of the reduction factors is to take into account the factors influencing product behavior that are likely to be significant in an application,” Hes... »