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Equipment on deployed geosynthetics
August 1st, 2023
Q: I’m hoping you can resolve a disagreement among coworkers regarding construction quality assurance (CQA). I’m asking what is published and/or your opinion. It involves traffic on geomembrane. Is it now industry standard to allow skid steers and/or ATVs to operate directly on a geomembrane? It is assumed no turning, spinning, etc. Technical specifications typically […]
Wick drain installation considerations
October 1st, 2022
Figure 1. Prefabricated vertical wick drain installation at Rainy River Wick drains are one of the most common and cost-efficient ground improvement techniques for soft fine-grained soils. Over the years, there has been substantial development on wick drain design methods; however, construction considerations may have not been sufficiently considered during the design phase. Failure to […]
Geomembrane destructive testing
October 1st, 2022
Figure 1. Site 1 pond replacement For almost 40 years, the generally accepted destructive test rate for geomembrane seaming has been one sample for every 500 feet (152 m) of seam. On large projects this leads to hundreds of holes cut into liners that engineers, manufacturers and installers work very hard to make leak proof. […]
Performing proper quality management on geomembranes
August 1st, 2022
As a vital part of a landfill, tailings dam or wastewater treatment facility, geomembranes provide a barrier between your waste and the environment. It is important to perform proper geomembrane quality management to ensure that your liner is performing to the highest standards possible and will continue to do so for years to come. There […]
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 […]
GMA announces Waste Containment System Design technical seminar in Syracuse in April
March 8th, 2018
On March 7, 2018, the Geosynthetic Materials Association (GMA) announced the opening of registration for a technical seminar on “Waste Containment System Design” at the Crowne Plaza in Syracuse, New York, April 17–18, 2018. The technical seminar will identify how vertical expansions of landfills can raise a number of engineering concerns that must be evaluated […]