Settlement of Large Mat on Deep Compressible Soil

by James P. Stewart, (M.ASCE), John P. Stopen Engineering, Syracuse, United States,
Hugh S. Lacy, (M.ASCE), John P. Stopen Engineering, Syracuse, United States,
Charles C. Ladd, (F.ASCE), John P. Stopen Engineering, Syracuse, United States,



Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments

Abstract: This case history describes the settlement analyses for a large load compensated (floating) mat foundation on a deep deposit of normally consolidated clay of variable thickness. Large secondary compression settlements were predicted. The foundation design addressed the tendency for the perimeter to settle more quickly than the interior. The solution included extending the mat beyond the footprint of the superstructure and backfilling the basement walls with wide zones of lightweight fill.

Subject Headings: Soil settlement | Foundation settlement | Foundation design | Materials engineering | Mat foundations | Soil compression | Load factors | Soil stabilization

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