IGS-NA focuses on the Geosynthetics Conference 2019, service award and webinars

August 1st, 2018

In this edition of the IGS-NA News column, the board of directors gives a special thank-you to John Allen for putting together a strong list of speakers for our educational webinars this year. IGS-NA supports Geosynthetics Conference 2019 The North American Chapter of the International Geosynthetics Society (IGS-NA) supports the next edition of the long-running […]

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Presto releases geocell ballast research

June 1st, 2018

Presto Geosystems, manufacturer of the high-density polyurethane (HDPE) GEOWEB® geocell base stabilization system, has released results from railroad-track research performed to quantify the reinforcement benefit of GEOWEB-confined ballast as compared to unconfined ballast. The company said the research was a cooperative effort under the direction of Ben Leshchinsky, Ph.D., P.E., of Oregon State University, and […]

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Presto releases GEOWEB ballast research

February 24th, 2018

On Feb. 21, 2018, Presto Geosystems, manufacturer of the HDPE GEOWEB® base stabilization system, released results from rigorous railroad-track research performed to quantify the reinforcement benefit of GEOWEB-confined ballast as compared to unconfined ballast. The company said the research was a cooperative effort under the direction of Ben Leshchinsky, Ph.D., P.E., of Oregon State University, […]

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History of geosynthetics use on national forest roads

June 1st, 2017

Introduction The objectives of this article are to document the long history of geosynthetic materials used in the U.S. Department of Agriculture (USDA) Forest Service and other rural roads, to document the many creative and useful ways geosynthetics have been used, and to promote the cost-effective uses of geosynthetics in road projects today, particularly on […]

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Part 2: New design models for MSE walls and slopes

June 1st, 2017

Introduction The design of many geotechnical structures is based on limit-state conditions. For example, in designing gravity walls, the load exerted by the retained soil on the wall is based on an assumed active state of stresses. That is, the wall moves sufficiently outward, enabling the retained soil to mobilize its shear strength along a […]

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