HELITECHCCD.COM 800-246-9721 PROJECT CASE STUDY © Helitech CCD 2016 EARTH SHORING GROUND IMPROVEMENT DEEP FOUNDATIONS AGGREGATE PIERS / VSCs MICROPILES GROUTING Sector: Parking Structure Description A 5 story mixed-use building (parking garage and restaurant) constructed in Orland Park. The building will be used for parking and a future restaurant. Requirements & Challenges Existing uncontrolled fill extended 15 to 18 feet below existing grade, the cohesive fill was variable in consistency, containing concrete, brick, and asphalt pieces and layers. An additional 2 to 3 feet of buried topsoil and/or marginal strength soils were often found underlying the fill materials. These materials were deemed unsuitable for foundation support. The soils would need to be i

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