Validating models against experience in foundation engineering, using the ROC curve

The GeoBrain experiences database (Barends, 2005) contains case histories for foundation and drilling technology. Since 2005, different contractors have been filling this database with their recent experiences in the Netherlands. The total number of entries counted 1850 projects by the end of august 2009. In February 2009, 364 of them concerned the vibratory installation of steel sheet piles (www.geobrain.nl).