Experienced Geotechnical Contractors helitechccd.com 1-800-246-9721 EARTH SHORING GROUND IMPROVEMENT DEEP FOUNDATIONS VIBRATORY STONE COLUMNS MICROPILES GROUTING PROJECT CASE STUDY Sector: Library Description A 21,000 sf historic library is located close to the Kansas River. The site soils are gray to gray brown stiff sandy clays. Instead of using drilled piers to support the building, Vibratory Stone Columns were specified for ground improvement. Requirements & Challenges The requirements for the proposed footings were designed for an allowable bearing pressure of 2,000 psf. The settlement tolerances for the structure are reported as being less than 1-inch of total settlement, with less than 1/2 inch of differential settlement between columns. Results The desig

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