Case Histories of Shallow Foundations on Improved Soilby Antal Partos, SITE Engineers Inc, United States,
Joseph P. Welsh, SITE Engineers Inc, United States,
Peter W. Kazaniwsky, SITE Engineers Inc, United States,
Edward Sander, SITE Engineers Inc, United States,
Abstract: Case histories for four projects, with structures varying from a 27-story high rise to a one-story shopping center, are presented. For each of these projects, improving the soil to allow shallow foundations proved more economical and timely than deep foundations or soil removal and replacement. Vibro-compaction was used to densify loose sand beneath a 27-story building. Compaction grouting was used to decrease the risk of sinkholes beneath portions of a one-story office building. For each case history, before and after geotechnical information is presented. Predicted settlements and the quality assurance and quality control results are given. These case histories demonstrate that in many cases it is economically advantageous to improve inadequate soils so that shallow foundations can be used.
Subject Headings: Shallow foundations | Case studies | Compaction grouting | Compacted soils | Soil grouting | Deep foundations | Economic factors | Commercial buildings
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