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... »

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... »

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... »

Reinforcing a Coke Landfill Barrier System

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By Jimmy Thomas and Sam Bhat – Upgrading bitumen from oil sands operations can produce a coke byproduct. In the case described here, it was a predominantly carbonaceous granular material which required environmentally sound disposal in a lined facility. It was known that the coke landfill needed an impervious geosynthetic barrier and a leachate collection system at the base; but deeper investigati... »

GSI Asia and IGS Council Gather in Seoul

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Despite some anxiety over recent cases of the viral Middle East Respiratory Syndrome (MERS) in some places in Korea, the geosynthetics community kept to its schedule and gathered for the long-anticipated 2nd GSI Asia conference from the Geosynthetic Institute. The International Geosynthetics Society (IGS) also took the opportunity to call together its IGS Council for high-level meetings. Korea, as... »

Tensar Sets New Benchmark for Its Reinforced Slope Heights in UK

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By Tensar International – For a new retail distribution warehouse in Crick, Northamptonshire, Tensar International designed and provided products for a 15m-high slope. The TensarTech® GreenSlope® Earth Retaining System installation is now the highest single lift, reinforced slope that the company has designed in the United Kingdom. Designed to match the ground level of the site’s boundaries ... »

GSI Asia 2015 Opens for Abstracts

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The Geosynthetic Institute (GSI) international affiliate GSI Korea will host the GSI Asia 2015 Conference 24 – 26 June 2015 at the Textile Center in Seoul, Korea. This marks the 2nd GSI-Asia International Geosynthetics Conference. The event has launched a website and abstracts are invited for consideration through January 25. EVENT WEBSITE Key session topics: Stabilized and Reinforced Soil Structu... »