18.15-18.30 Introduzione Gruppo Geotecnici a Roma

Introduction of the Gruppo Geotecnici a Roma

18.30-19.15 Seminario del Dr. Njemile Faustin

Seminar by Dr. Njemile Faustin

19.15-19.30 Domande al relatore

Questions and Answers (Q&A session)

Description of the event (the seminar will be held in English language)

Shafts are a key aspect of most underground tunnel schemes. Circular shafts are generally preferred over other plan geometries because they are inherently stiffer and more efficient at resisting in-situ horizontal earth pressures. However, there is limited understanding of the performance of these circular shafts in clays and the associated ground movements due to construction. The presentation will describe key findings from field observations of circular shaft construction assembled from three major tunnelling projects in the United Kingdom and novel centrifuge model tests of shaft excavations that were conducted using the geotechnical centrifuge at the University of Cambridge.