Publication Abstract

Proceedings-DFI/EFFC 11th International Conference on Piling and Deep Foundations, 2014, Stockholm, Sweden, (DFI)

Economic and Safe Design and the Execution Standards for the Construction Phase of Deep Foundation Systems in Difficult Soil Conditions
Rolf Katzenbach, Seffen Leppla, Technische Universitšt Darmstadt, Institute and Laboratory of Geotechnics, Germany; Matthias Seip, Katzenbach GmbH, Germany

The economic and safe design of deep foundation systems in difficult soil conditions is based on a reduction of construction material used, construction time spent, energy consumed and a high-level modelling of the soil-structure-interaction. The special foundation system Combined Pile-Raft Foundation (CPRF), in-situ load tests on the construction site and a sufficient soil investigation allow cost optimised constructions. In any case at challenging projects the observational method has to be applied for verification and quality control of the design. Regarding the 4-Eye-Principle as basis of the quality control management an independent peer review of the planning, design and construction phases is the guarantee for safety, serviceability and optimisation of all projects. Main execution standards for the construction of deep foundations based on the Eurocode 7 are summarised and discussed. The paper presents the basics of the safe and qualified design and construction of foundation systems including quality assurance. The application in engineering practice is shown on a challenging project of high-rise buildings with difficult boundary conditions.

 article #1905; publication #100 (IC-2014)