Soil nail and shotcrete reinforcement for new roadway embankment
July 20th, 2024
FIGURE 1 Aerial view of the Mantua Boulevard extension Spring 2024 brought with it the grand opening of a one-of-a kind fossil park and museum in Gloucester County, N.J. Part of Rowan University in South Jersey, the new Jean and Ric Edelman Fossil Park and Museum includes 44,000 square feet of exhibit space above a […]
Underwater wick drain installation
October 1st, 2022
Q: We have an underwater wick drain application in the Delaware River adjacent to the Delaware Memorial Bridge. S. T. Hudson Engineers Inc. is working with the Delaware River & Bay Authority (DRBA) on a ship collision protection system (SCPS) at the piers in the river. There is up to 50 feet (15 m) of […]
Wick drain ground improvements
August 1st, 2022
Editor's note: This is part 1 of a two-part article. Part 2 will appear in the October/November issue of Geosynthetics. FIGURE 1 Wick drain installation Construction of a large mine waste stockpile was required at the Rainy River Mine in Ontario, Canada. The mine rock stockpile foundation has up to 131 feet (40 m) thick […]
NAUE geosynthetics secure German road embankment over old mining area
November 2nd, 2021
Photograph courtesy of NAUE The German federal highway B91 between the cities of Deuben and Werschen in Germany is a collector road with access to the A9 motorway. The subsoil risks resulting from past lignite mining activities represent an enormous challenge in the region. Subsidence has occurred regularly. Solution In the area of a bridge […]
GSI to host webinar on soil consolidation using wick drains
October 12th, 2020
The Geosynthetic Institute (GSI) will sponsor a webinar, “Soil Consolidation Using Wick Drains, aka PVDs.” on October 28, from 11:30 a.m. to 1 p.m. EDT. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Wick drains, also called prefabricated vertical drains (PVDs), consist of […]
GSI to host webinar on soil consolidation using wick drains
November 13th, 2019
The Geosynthetic Institute (GSI) will sponsor a webinar, “Soil Consolidation Using Wick Drains, aka PVDs,” on Nov. 27, from 11:30 a.m. to 1 p.m. EST. Geosynthetic Materials Association (GMA) member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Wick drains, also called prefabricated vertical drains or PVDs, consist […]
The magic of water and geosynthetics
February 1st, 2019
Water is a fundamental issue in many projects using geosynthetics. From erosion control to reservoir liners and covers, from landfill leachate pond barriers to coal ash dewatering, handling water and the effects of water are considerations nearly every engineer employing geosynthetics considers. Geosynthetics can effectively manage water applications of erosion control, reinforcement, barriers, filtration and […]
GSI to host webinar on wick drains, GMA members get discounted rates
November 12th, 2018
The Geosynthetic Institute (GSI) will sponsor a webinar entitled “Soil Consolidation Using Wick Drains, aka PVDs” on Nov. 14, from 11:30 a.m. to 1 p.m. EST. The webinar will be hosted by Dr. Robert M. Koerner. GMA member companies and their employees receive discounted rates on all GSI webinar and short course registrations. Wick drains, […]
Geosynthetics and coal combustion residuals
October 1st, 2018
According to the World Bank Group, in 2015 coal produced 41% of the world’s energy and about 34% of the energy production in the United States. While global warming and pollution are serious challenges according to most scientific evidence, and coal burning is cited as one cause of both, there are many staunch advocates of […]
The GMA Techline answers all
August 1st, 2018
UV Weathering of Geotextiles Q: My firm is providing construction quality assurance services for a landfill cell expansion. We are having an issue with our contractor and are going to be in a position of having 8 ounces/square yard (271 g/m2) of nonwoven geotextile exposed for a period of time, which exceeds the seven-day limit […]