The Influence of Engineering Judgement in the Settlement Analysis of a Test Fill Near Châlon-sur-Saône, France

by Jean-Pierre Demartinecourt, Hydro-Geo S.A., Fontaines, France,
Jean-Pierre Rajot, Hydro-Geo S.A., Fontaines, France,



Document Type: Proceeding Paper

Part of: Vertical and Horizontal Deformations of Foundations and Embankments

Abstract: This paper describes the settlement study for a test fill near Chalon-sur-Saone (France). The soil profile at the site comprised a silty clay layer 4.2 m thick. The elevation of the ground water table was subjected to significant seasonal changes, and for the average elevation, the top 1.6 m of the clay layer was above the piezometric surface. The assumptions involved to consider the part of the clay layer above the piezometric surface are emphasized, including the definition of the preconsolidation pressure profile and the definition of the hydraulic boundary conditions for settlement rate prediction. The test fill was built to evaluate these assumptions, and the settlement and settlement rate predictions are compared to the field behavior.

Subject Headings: Soil settlement | Fills | Soil pressure | Clays | Layered soils | Consolidated soils | Soil water | France | Europe

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