Ecosystems, soil present challenges for levees

June 1, 2006  |  News

There is no shortage of challenges to building hurricane protection in Gulf Coast USA. Soils are so soft that it’s difficult to get the land to support massive levees. The landscape itself continues to sink through natural and man-made processes. And a fragile ecosystem of coastal marshland li…
A most-interesting article…with one correction

June 1, 2006  |  News

To the editor: I really enjoyed reading the article on the use of synthetic and/or manufactured soil stabilization materials in World War II by Mr. Gregory Richardson (Geosynthetics, February-March, “Lost in history: Geo-Airdromes”). I am very much an amateur historian on WW II and have quite a …
Further comment on ‘Landfill closure’ column

June 1, 2006  |  News

To the editor: I want to express further thoughts on the Designer’s Forum column in the June/July 2005 issue of GFR (now Geosynthetics), titled “Landfill closure: A lesson in crisis management” by Gregory Richardson and William Chicca. This article is interesting but does not present the real …
Geotube questions

April 1, 2006  |  Q&A: GMA Techline

From the GMA Techline Subject: GeotubeI refer to the article “Saving Yucatan’s Coast” published in the September 2005 issue of GFR (now Geosynthetics), pages 34-39. Can you please let me know the following: What mathematical calculation was used to derive the appropriate ground lev…
Construction Quality Assurance and Inspectors Certification Program (CQA-ICP)

April 1, 2006  |  Features

By George R. Koerner and Robert M. Koerner GRI White Paper #8January 31, 2006 1.0 Definition of CQA (as opposed to CQC) Construction quality assurance (CQA) and construction quality control (CQC) are widely recognized as critically important factors in overall quality management for waste containmen…
A garden grows on a Minneapolis rooftop

April 1, 2006  |  Case Studies

Architects, designers, and new geosynthetics build a high-rise green space. By Mason Riddle There is mesh and then there is mesh. For a downtown Minneapolis 10-story penthouse, the proper mesh was critical to the installation and maintenance of a rooftop garden and terrace, which, like the owner&rsq…
On the grow: Assessing the U.S. green roof market

April 1, 2006  |  Case Studies

Multiple benefits, new technologies are building up green roofs. By Sonja Hegman Green roofs are gaining in popularity as more people acquire knowledge on the subject. Awareness of green roofs as an eco-friendly concept is also being nurtured in the design and architectural communities. And building…
Eight ways to achieve improved retaining-wall performance

April 1, 2006  |  Products

A refresher course for SRW success. By Michael R. Simac Segmental Retaining Wall (SRW) performance can be improved greatly by implementing good construction techniques. Since SRW construction started some 20 years ago, a number of good guidelines have proven to be at the core of a properly executed …
Berm is working on the railroad

April 1, 2006  |  Case Studies

Geosynthetic solution offers both separation and reinforcement for this Canadian rail project. Canadian Pacific Railway (CPR) is renowned for building rail lines through some of North America’s toughest terrain. Just west of Kenora, Ontario, near the Manitoba/Ontario border, the main CPR track…
Rejuvenated reservoir will irrigate world-famous golf courses

April 1, 2006  |  Case Studies

More than 21 acres of geomembrane help revive Pebble Beach’s Forest Lake Reservoir. Originally constructed in the late 19th century, a reservoir near a scenic stretch of California coastline underwent a dramatic transformation last year, and is now poised to serve the irrigation needs of the 2…