Building Blocks - structuremag.org

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W Building ith widespread acceptance in the Reduces schedule for installation. market place, many engineers are Reduces the cost of a structure needing a choosing ground improvement traditional deep foundation, and its design, Blocks techniques to provide a suitable by replacing pile caps, grade beams and subgrade for shallow foundations at sites that structural slabs with spread footings and would have traditionally required deep foun- slabs-on-grade. dations. This article discusses the Controlled Improves the performance of a methane Modulus Column (CMC) ground improvement barrier system, when required, by eliminating updates and information technique and some case histories highlighting complex detailing around pile caps.

December 2011 STRUCTURE magazine December 201115 uncontrolled and compressible, CMCs were an attractive foundation option. In addition to the benefits described previously, the CMC

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