Members Only  

Three challenges in using SRWs and other reinforced-soil structures: Part 3B

August 1, 2008

By Michael R. Simac, P. E., and Blaise J. Fitzpatrick, P. E. Introduction While segmental retaining walls (SRWs) have been routinely used for more than 15 years now, there are still three challenging issues facing owners considering their use. What is the best way to procure, design, and then build these structures to minimize short-term …

Contech CEO elected

Ronald C. Keating has been elected president and chief executive officer (CEO). Keating has been with the company since August 2007, when he was named president and chief operating officer (COO). Keating succeeds Pat Harlow, who will remain chairman of the civil engineering site solutions provider. Keating, 39, a native of Dallas, joined Contech last …

Tensar geogrid wins European building awards

The TriAx geogrid from Tensar International won a gold medal at the Brno International Building Fair in the Czech Republic and also at Autostrada 2008 in Kiecle, Poland. From the 800 exhibiting companies and 8 award winners at Autostrada, TriAx was the only geosynthetics product to receive recognition within road construction and also won the …

Geotextile-wrapped layer is key to drainage project in Ontario

A geotextile-wrapped layer of stone fill is an important element in a $3.5 million drainage project in the Thunder Bay neighborhood of Fort Erie, Ontario. The construction includes a series of storm chambers that will convey water underground, or in cases of heavy rain or runoff, store the water in the underground chambers for later …

Geosynthetics at the Olympics

Look carefully at the venues for the 2008 Beijing Olympic Games. Geosynthetics may not be obviously apparent, but a re-examination of the many new locales built for this enormous event should offer plenty of possibilities. Examples include: Millions of square meters of geosynthetic liners and geomembranes installed to help create ponds and lakes, rowing and …

Geotextile form bags used to help end defects in factory-built houses

California-based Sure Safe EFS has announced that its engineered foundation system has proven effective in eliminating defects caused by improper settling of factory-built modular homes on faulty foundations. One of the keys to the system is that when all of the steel buttresses are in place below the structure, the base of the steel piers …

Permeable parking lot in Chicago

The Illinois Sports Facilities Authority (ISFA), owner, developer, and operator of U.S. Cellular Field, home of Major League Baseball’s Chicago White Sox, has unveiled an environmentally friendly parking lot at the facility on the south side of Chicago. Featuring a permeable paving surface, parking lot “L” is situated south of the stadium and covers more …

Forecasts offered for geosynthetics industry

U.S. demand to grow 5% annually through 2010 Domestic demand for geosynthetics is projected to increase 5% per year through 2010 to more than 850 million yd2, according to press releases from industry observers. A recovery in nonbuilding construction spending from a weak 2005 will fuel advances for geosynthetics demand. Geosynthetics will continue to increase …

New petrochemical complex in Qatar

A multi-billion-dollar petrochemical complex is under development in Mesaieed, an industrial city about 25 miles south of the Qatar capital, Doha, according to Qatar publications. This facility is designed to provide raw material for the Qatari private sector to implement new manufacturing projects. Plans also call for an associated development of a geomembrane project that …

Members Only  

Geotextiles in dams: Forging federal guidelines

By Douglas A. Crum Abstract The major building era for large dams in the United States, from the 1940s to the 1970s, ended about the time geotextiles were becoming popular. For the last 40-plus years, geotextiles have been used in many dams worldwide for various applications. During this period, federal agencies have resisted experimentation with …