DENVER, CO–(Marketwire – May 10, 2011) – ACH Foam Technologies supplied an estimated 2.1 million cubic feet of EPS Geofoam to the second largest Geofoam project in the US: the West Valley TRAX line. Utah Transit Authority (UTA) constructed the light rail line to a new hub in West Valley near Salt Lake City. Projected to cost $200 million and span 5.1 miles, the project required 639 truckloads or 750,000 cubic yards of the lightweight fill material. ACH Foam delivered the first truckloads in Febuary 2009; Geofoam installation was complete by January 2010.
In this part 2 of 2, various types of retaining walls are examined as possible alternatives in a side-hill retaining wall situation. These include conventional wall types such as CIP walls, MSE walls, gravity walls and soldier pile walls and some less conventional approaches such as lighweight concrete fill, hybrid soil-nail and geofoam wall systems, ground improvement and micropile walls.
Part 1 of this Side Hill Retaining Wall article covered the definition, significance, problems and failure modes, investigation techniques, analysis, and construction considerations of side hill walls. A PDF version is now available for download as well. Click through for the article and the download link!
Graduate student Saman Zarnani and Dr. Richard Bathurst of the Royal Military College have developed a new application for geofoam and geosynthetics, to mitigate earthquake damage by improving the foundation subgrade. Initial shake table testing […]