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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 […]
Design of reinforcement geosynthetics in landfill piggyback expansion
June 1st, 2021
FIGURE 1 Installation of reinforcement geosynthetic An operator at a nonhazardous waste storage facility proposed extending the facility’s life, within the existing perimeter, by vertically expanding the cells in operation to a maximum thickness of waste of 52.5 feet (16 m). This project is based on nonhazardous waste storage cells 49.2-feet (15-m) thick, some of […]
Dewatering of sludge from a sewage treatment plant with geotextile tubes
June 1st, 2021
Water is an important resource for people’s quality of life and is indispensable for several uses, including desedentation. However, this resource is finite and available in small quantities in the quality of fresh water, at liquid state and on the surface. Therefore, rivers and lakes, providers of surface water resources, must be treated and kept […]
Geosynthetics Conference proceedings archive expands and announcing GeoNashville
June 1st, 2021
The Industrial Fabrics Association International (IFAI), the Geosynthetics Materials Association (GMA) and Geosynthetics magazine are taking steps to make geosynthetics education and research widely available to the industry. The proceedings from all geosynthetics conferences published by IFAI (except for Geotechnical Frontiers events) are currently available back to 2008 (including the proceedings from GeoAmericas 2008), and […]
GMA on virtual conference, resin prices and Lobby Day
June 1st, 2021
The 2021 Geosynthetics Virtual Conference has come and gone, but not before providing access to all the recorded content through May 1. With the unlimited access that the virtual platform provided, attendees were able to listen to presentations that provided up to 40 professional development hours (PDHs), an advantage not normally available through a regular […]
IGS-NA elects new officers and board liaisons
June 1st, 2021
The latest IGS North America (IGS-NA) general assembly took place on Feb. 22 during the 2021 Geosynthetics Virtual Conference. The society’s new president, John Allen, accepted the gavel that was passed from Dr. John S. McCartney, president, 2019–21. The new board and industry liaisons were announced and started their activities on the same date. The […]
An open solicitation to join in a round-robin effort to find a substitute for Igepal CO-630
June 1st, 2021
Improved stress-cracking resistance in high-density polyethylene (HDPE) geomembranes has been a quest of our industry and a hot research topic for years. The Geosynthetic Institute (GSI) has been working in this area since the mid-1980s. The GRI GM13 standard specification for HDPE geomembranes has moved the ASTM D5397 (appendix) single point notch constant tension load […]
Bituminous geomembrane for a South Australian mine
June 1st, 2021
Coletanche ES3 on the TSF embankment for copper-gold project in South Australia The Oz Minerals Carrapateena mine is a copper-gold project located 99 miles (160 km) north of Port Augusta in South Australia. The ore is processed on-site to produce a gold-copper concentrate. A lined tailings storage facility (TSF) was required to receive the tailings […]