Geosynthetics sessions packed at GeoDenver

April 1, 2007  |  News

Nearly 70 eager attendees crowded into each of the three technical sessions on geosynthetics held during the annual Congress of the Geo-Institute of ASCE at the Adams Mark Hotel in Denver Feb. 18-21. Two of the sessions focussed on “Deficiencies of Current Design Methods and Construction Guide…
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IECA rolls into Reno

April 1, 2007  |  News

Environmental Connection—EC-’07—filled the halls of the Reno-Sparks Convention Center Feb. 12-16. The event featured full-day training courses addressing topics such as wind erosion, construction site management, and NPDES regulations and compliance. PHDs and CEUs were available fo…
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Geosynthetics-2007 is a hit in D.C.

April 1, 2007  |  News

After more than 1,000 participants and 76 exhibits, more than 60 papers and presentations, 9 short courses, 4 special sessions, 3 keynotes, and 2 panels—after all that in just 4 days, the Geosynthetics-2007 Conference and Trade Show came to a close in Washington, D.C. The Jan. 16-19 event mark…
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Geomembrane raincoat liners in the mining heap leach industry

April 1, 2007  |  Products

By Allan J. Breitenbach and Mark E. Smith Introduction Raincoat liner (RCL) terminology is used in the mining heap leach industry in reference to a temporary exposed geomembrane cover (EGC) that minimizes rain stormwater infiltration into the ore heap fill and diverts cover surface storm runoff to t…
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Geocell, grid, and reinforced-soil in restoring eroded steep slopes

April 1, 2007  |  Case Studies

By Stan Boyle and Kathy Robertson Abstract In October 2003, stormwater overflows from an intense, short-duration storm eroded approximately 20,000 yds.3 of soil from the bottom and side slopes of a ravine between the Tacoma Narrows Bridge and a subdivision near Tacoma, Wash. The erosion ruptured two…
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Multiple-tiered retaining walls

April 1, 2007  |  Case Studies

The Norris Canyon Estates in San Ramon, Calif., east of San Francisco, are gaining a local presence not merely for luxury homes but also for the nearly half-million ft.2 of multiple-tiered retaining walls built throughout its challenging terrain. A location with 1:1 slope ratios and expansive clay s…
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Historic Fort Sheridan implements innovative ‘best-practices’ stormwater and landscape plan

April 1, 2007  |  Case Studies

Five years ago, a housing develoment company needed to prepare a stormwater management plan and design best management practices (BMP) for stormwater management at historic Fort Sheridan. The military base, situated on bluffs overlooking the shores of Lake Michigan in the northern Chicago suburb of …
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A conservative junction-strength requirement

April 1, 2007  |  News

To the editor: Thank you for the article “Junction-strength requirements for roadway design, construction” (Geosynthetics, February/March, 2007), defining and categorizing the use of junction strength as a specifying property for geogrid reinforcements. The excellent summary of performan…
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Further clarifications on GRS construction

April 1, 2007  |  News

To the editor: Thank you for your response to my concern about a photo in Geosynthetics magazine, February-March 2007. While including a photo of the Bowman Road Bridge in the article, “Junction strength requirement for roadway design construction” was done [solely] for aesthetic purpose…
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Commentary RE #2: article on structured geomembranes

April 1, 2007  |  News

It takes an “interesting” article (“Using structured geomembranes in final solid-waste landfill closure designs,”) to generate a dozen pained e-mail comments to me even before I received my February/March copy of Geosynthetics! This topic had its beginnings in a paper I had r…
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