Back-analysis of a raft in overconsolidated stiff clay

This paper presents details on the construction of a deep basement where a raft foundation was used. A detailed three dimensional back-analysis has been carried out using the BRICK updated soil parameters. The results show that the ‘most probable’ parameters match reality reasonably well, providing confidence in their description of the actual soil-structure interaction. The field measurements show that the control movements were excellent during construction and fall within the low bound values of historical data presented in the literature for similar conditions.