HELITECHCCD.COM 800-246-9721 PROJECT CASE STUDY © Helitech CCD 2016 EARTH SHORING GROUND IMPROVEMENT DEEP FOUNDATIONS AGGREGATE PIERS / VSCs MICROPILES GROUTING Sector: University / Academic Residential Facility Description A residential housing design consisting of six new residential buildings was proposed on a site with poor upper soils. Requirements & Challenges Three of the new buildings required a 7000 psf bearing pressure. In order to reach this bearing pressure, Helitech was selected to install an Aggregate Pier/VSC Ground Improvement design. In addition to the poor soils, there were many project challenges, including a shale shelf that ran through site from two to ten feet below bottom of footing. Access was limited not only due to the tight urban setti

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