Check out this dramatic photo of an excavator that toppled down a hill in Wellsley, MA adjacent to a commuter rail line. According the WickedLocal.com article, the operator was working at a construction site on a hillside where several retaining walls were being constructed. Photo by Jim Walker of Wicked Local.
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!