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Drainage geocomposites and PVC geomembranes for highway tunnel lining
October 1st, 2022
Figure 1. Tunnel view after gunite application The original design for the primary lining system for the Driskos Twin Tunnel along the Egnatia motorway in Greece, consisting of a PVC plasticized (PVC-P) geomembrane, called for a nonwoven geotextile, 500 g/m², as a puncture protection and drainage layer. The nature of the rock with high pressures […]
Geosynthetics Conference 2023 announces Robert M. Koerner lecture: A conversation with J. P. Giroud
October 1st, 2022
Few names in the geosynthetics industry hold as much history as Koerner and Giroud. The Geosynthetic Materials Association has named J. P. Giroud, Ph.D., the recipient of the 2022–2023 Robert M. Koerner Award and Lecture Series. This momentous occasion will create a unique opportunity for attendees at the Geosynthetics Conference 2023. Start making plans now […]
Washington fully open
October 1st, 2022
Since mid-summer, the Geosynthetic Materials Association (GMA) has been swamped with conversations related to the Buy American, Build America (BABA) provisions of the Bipartisan Infrastructure Law (BIL) 180-day hold for clarity and definition on the Buy America clauses. GMA members have been meeting with various agency leaders in Washington, D.C., to ensure that our questions […]
Green MSE walls and erosion and sediment control applications
October 1st, 2022
Figure 1. Badly eroded roadside slope adjacent to stream before restoration Mechanically stabilized earth (MSE) walls are becoming more common in today’s landscape. Keeping soil in place during construction (erosion control), addressing stormwater contaminated with sediment-laden runoff during construction (sediment control), and providing successful revegetation after construction activities are all challenges that are commonly solved […]
GSI’s annual Landreth “Steward of the Environment” award
October 1st, 2022
The Robert and Mitchell Landreth “Steward of the Environment” award was established in 2021. It is in honor of Robert Landreth (1939–2021) and his wife, Mitchell. The annual award is bestowed by the Geosynthetic Institute (GSI) in recognition of “distinguished engineering achievement related to the environment” by a college faculty member, graduate student or post […]
Virtual and in-person events 2022-2026
October 1st, 2022
IGS North America (IGS-NA) continues its extremely active period of development. We welcome the involvement of Geosynthetics magazine’s readership. If you are not already a member of the International Geosynthetics Society (IGS) and one of its chapters, we strongly encourage you to make 2023 the year you join. As a not-for-profit engineering group with an […]
Geogrid for Calgary road building
October 1st, 2022
Spartan Road Grid™ surface view after installation. Photograph courtesy of Titan Environmental Containment Geosynthetic materials have proven their worth on (and below) surfaces across Canada, where they are being used in greater frequency to provide contractors with a stronger, more sustainable, and cost-efficient base for their projects. Canada’s road-building sector recently applied Titan’s Spartan Road […]