The Proceedings of the 2nd International Geotechnical Seminar, held in Ghent, 1-4 June 1993. Contents: Keynote lectures; Interaction problems related to pile groups; Installation problems of bored and auger piles; Monitoring of pile installations: Case studies; Pile testing; Integrity testing; Design of bored piles; Settlement behaviour of groups of bored or auger piles; Piled rafts; Relevance of in situ testing for the evaluation of bored or auger pile design; Design of auger piles with soil displacement; Supplement.