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NPA geocell for railway line repair in permafrost region

June 1st, 2021

FIGURE 1 Exposed degraded permafrost on the damaged track after the flood event in 2017 Churchill is a port city located on Hudson Bay in northern Manitoba, Canada. The nearest roadhead village of Gillam is 156 miles (252 km) south. Hudson Bay Railway (HBR), the only mode of land transport to Churchill, was completed in […]

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High-strength geocell and geogrid hybrid reinforcement

June 1st, 2020

Compressor station gravel pad on soft subgrade By Sanat Pokharel, Timothy Yii, Marc Breault and Meisam Norouzi Infrastructure development in natural resources rich Alberta, Canada, often encounters very soft ground conditions that pose several construction and sustainability challenges to transportation infrastructure, such as roads, rails and pipelines. As the conventional construction practices may not always […]

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Final Inspection: IGS–NA Photo Contest winners

June 1st, 2017

The International Geosynthetics Society North American (IGS–NA) Chapter held the 2017 IGS North America Photo Contest this past winter. The first, second, and third place winners were announced at the Geotechnical Frontiers conference in Orlando, Fla., March 14, 2017. Photographs were required to clearly display a geosynthetic in use. Photographs needed to provide a clear […]

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