ABSTRACT

Big Ben during the building of a nearby underground station. The lateral movement of the top was in reality limited to 25 mm during the grouting (Harris et al. 1999).

The planned application of the technique in Amsterdam in sand underneath piled foundations initiated a research programme in the Netherlands. The aim of this programme was to get a better understanding how the shape of the injected grout could be influenced by the grout properties and injection strategy. 1-g model tests were performed. The tests were performed in close cooperation with Cambridge University (Eisa 2008) and “Sapienza” University of Rome (Bezuijen et al. 2009). This programme focuses on compensation grouting in sand. Compensation grouting in clay was studied by Au (Au et al. 2003). Compensation grouting tests in silt are reported by Au (Au 2009). Research for the application in Amsterdam also included field trials (Paans 2002 and Haasnoot et al. 2002, Bezuijen et al. 2010).