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CPT/DMT QC of Ground Modification at a Power Plant

by J. Schmertmann, Schmertmann & Crapps Inc, Gainesville, FL, USA,
W. Baker, Schmertmann & Crapps Inc, Gainesville, FL, USA,
R. Gupta, Schmertmann & Crapps Inc, Gainesville, FL, USA,
K. Kessler, Schmertmann & Crapps Inc, Gainesville, FL, USA,



Document Type: Proceeding Paper

Part of: Use of In Situ Tests in Geotechnical Engineering

Abstract:

The use of 908 static cone penetration test (CPT) and 33 Marchetti dilatometer test (DMT) soundings provided the quality control (QC) needed to improve a power plant site by the use of dynamic compaction and compaction grouting. The engineers used an equivalant CPT-based relative density acceptance criterion, which they modified during the work to include a DMT-based modulus criterion. They achieved the objective of reducing differential settlements to permit the successful use of shallow foundations.

Subject Headings: Penetration tests | Compacted soils | Compaction grouting | Power plants | Shallow foundations | Soil settlement | Quality control

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