The geotechnical aspects of final cover system slope stability follow the same principles used for other geotechnical stability problems.
The potential for sliding failure of final covers and piggyback liners in municipal solid waste (MSW) landfills equipped with active landfill gas (LFG) control systems is demonstrated and the need for a contingency passive venting system is presented.
This article presents current information on geotextiles installed experimentally in an unpaved road near Smyrna, Del. 35 years ago.
With a geotextile filter over the system–having a pipe or not–there is a chance for excessive clogging, particularly with the upstream soil you describe.
There are no generic standards or specifications for the situation you describe.
In autumn 2006, the Ontario Ministry of Northern Development and Mines tendered a construction project to provide a soil cover over the North Impounded Tailings (NIT) area at the abandoned Kam Kotia Mine site in east-central Ontario, Canada.
Specifying the transmissivity of a drainage product seems straightforward.
To my knowledge, polypropylene is extremely resistant to the entire range of pH-values, from acidic to alkaline.
Follow this new anti-scour mat product through the testing process.
This article gives a brief overview and a summary of the results of research work conducted under the 2003 North American Geosynthetics (NAGS) Award of Merit.
A revised and updated guidance document by the Erosion Control Technology Council (ECTC) is now ready for industry professionals.
A geoelectric integrity survey was requested on a new landfill cell with the following lining system from the top down.
The most comprehensive and accurate measure of the geosynthetics market in the U. S. and Canada is now available from GMA. Here are some highlights.
The Geosynthetics Market Report notes that there are currently 40+ geosynthetics manufacturing companies in the U.S. and Canada, with more than 50% located in southeastern part of the U.S. and Texas. There are more than 12,000 U.S. jobs in geosynthetics manufacturing, distribution, fabrication and installation.
Sales of geosynthetic materials are generally through distribution networks. Some distributors are exclusive or “captive” to one manufacturer, but most are not. Some manufacturers may sell directly to some project owners (usually when very large quantities are involved).
Nearly all installers of geosynthetic materials in the U.S. and Canada are trained and certified, many through IAGI (International Association of Geosynthetics Installers).
The geosynthetics industry is supported by testing companies that can verify the specifications of geosynthetic materials. And the industry is further supported by a large and active network of engineering consultants and also many academics (professors).
This report, copyright 2009, quantifies the production of geotextiles, geogrids, geomembranes, and drainage composites manufactured in the U.S. and Canada, and also includes a directory of manufacturers. Purchase this report at GMA Geosynthetics Market Report.