GSI Webinar: MSE Wall Back Drainage Design

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The Geosynthetic Institute will host its next GSI Webinar on 25 October 2017. The topic is MSE Wall Back Drainage Design. GSI Webinars are 80-minute sessions (with Q&A time added to the end) on the second Wednesday of every month at 11:30 am (EDT). Participants may be eligible to receive 1.5 professional development hours (PDHs) with completion of a 10-question multiple choice test following t... »

Ashley MacMillan Joins TenCate as an Engineering Business Manager

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TenCate Geosynthetics has announced the addition of Ashley MacMillan, PE as Engineering Business Manager – Northwest (United States). MacMillan is a 7-year veteran with a strong background in geotechnical applications. Among the skills she brings to TenCate is the ability to serve as a mechanically stabilized earth structures expert. MacMillan has been active in her career with the American Societ... »

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... »

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... »

Lime-Stabilized Backfill in MSE Retaining Structures

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By Giulia Lugli and Sachin Mandavkar – Soil can be stabilized by using a wide range of materials, such as cement, lime, and fly ash. When lime and water are mixed with a clay soil, modification of the soil properties and stabilization reactions begin. In highly alkaline environments (pH >12 for a short period of time), this can cause corrosion of steel elements in an engineered reinforcement sy... »

Geosynthetic Strip Reinforcement for Port of Miami Tunnel

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The Florida Department of Transportation’s impressive tunnel project has connected the Port of Miami directly with US Interstate’s 395 and 95. The well-publicized work has been designed to alleviate cargo-related congestion created by the busy port and to reduce the amount of cargo-carrying vehicles throughout the city’s downtown districts. The success of the project has been secured through the u... »

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 ... »

October 12 Webinar: MSE Wall Back Drainage Design

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The Geosynthetic Institute will host its next GSI Webinar on 12 October 2016. The topic is MSE Wall Back Drainage Design.  GSI offers these 75-minute sessions (with Q&A time added to the end) on the second Wednesday of every month at 11:30 am (EDT). Participants may be eligible to receive 1.5 professional development hours (PDHs) with completion of a 10-question multiple choice test following ... »

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... »

Tall Reinforced Earth® Walls with Geostrip Reinforcements

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With respective heights of 27 meters and 34 meters, the Strikici and Sveta Trojica projects in Croatia consist of tall Reinforced Earth® walls featuring geostrip reinforcements combined with TerraTee (T-shaped) concrete facing. The notable constructions are part of Croatia’s on-going roadway system expansion and support the country’s strong growth in tourism along its shoreline. The MSE wall proje... »

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... »

South Africa: Road Expansion with MSE Walls

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By Kaytech – When a major roadway upgrade was approved for the city of Ballito, KZN Province, South Africa, mechanically stabilized earth (MSE) walls were essential to the project’s success. The scope of works entailed the expansion of an undivided two-lane road into a three-lane divided road. MSE walls were needed to bring the extra lanes to level, due to the site’s undulating topography. B... »

GeoAmericas 2016 Hotel Deadline Extended to March 15

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Save USD $200/night at the GeoAmericas 2016 hotel! Organizers for the 3rd Pan-American Conference on Geosynthetics have announced an extension on the conference rate for rooms at the Loews Miami Beach Hotel. Get this amazing rate through March 15. Use the booking link via the venue page on the GeoAmericas website to get the special room reservation code. Please use the Loews’ secure online r... »

Hotel Best Rate Ends March 9 for GeoAmericas

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More than 40 countries are represented in the early registrations for GeoAmericas 2016, the 3rd Pan-American Conference on Geosynthetics. The event organizers remind attendees that the best rate for rooms at the Loews Miami Beach Hotel ends March 9. All GeoAmericas 2016 activities—sessions, lectures, exhibit hall, social events—will take place at the Loews, which is situated on Miami’s historic So... »

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 ... »

George Koerner to Speak at Two Terrafix Seminars

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The annual terrafix® Winter Seminar Series delivers updated engineering and geosynthetic product information in a concise, free-to-attend seminar in multiple cities across Canada. This year’s program involves substantial updates, following significant changes in the market, standards, construction techniques, and other aspects that impact how to properly design with, specify, and use geosynt... »

Updated MSE Design Software for FHWA, BS 8006, and EuroCode 7

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NAUE, the international geosynthetics manufacturer and engineering services provider, has released SecuSlope 3.0 for mechanically stabilized earth (MSE) applications. The latest version of this MSE design software has been updated for state-of-practice use with FHWA (limit equilibrium), BS 8006 (ultimate limit state), and EuroCode 7 (EC7) following the German EBGEO (Recommendations for Design and ... »

GeoAmericas 2016 Features GeoPrediction Competition

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The Young Professionals Program at GeoAmericas 2016 has announced its GeoPrediction Competition. This team-based event will focus on predicting the face displacement of an MSE wall constructed with poorly draining backfill. The objective of the GeoPrediction Competition is to develop an accurate prediction of the behavior of a geotechnical system involving geosynthetics, given detailed information... »

Terrafix Winter Seminar Series 2015 – 2016

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terrafix® has made substantial updates to the engineering information in its annual Winter Seminar Series, making this year’s offerings more important even for those who have attended previously. Much is changing in the field, and the company has responded with welcomed state-of-practice updates for participants. The company has long sponsored educational seminars, including special sessions... »

Webinar: MSE Wall, Berm and Slope Construction Inspection

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The Geosynthetic Institute (GSI) reminds readers that November 11 is the next date to take part in the popular webinar on MSE Wall, Berm and Slope Construction Inspection. Mechanically Stabilized Earth structures with geosynthetic reinforcements have become an enormous market across multiple infrastructure segments. Proper inspection and knowledge of them is essential to ensuring safety and durabi... »

Bernardi Joins Strata Systems as Director of Engineering

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Strata Systems, Inc.has made another big addition to its team, adding Michael Bernardi, P.E. to a role as Director of Engineering. Bernardi has extensive reinforcement design experience, including 30+ years in the field and serving as the technical editor of the National Concrete Masonry Association’s “Design Manual for Segmental Retaining Walls,” 3rd Edition (2010). In an announcement on the hiri... »