Erste Projekterfahrungen mit Variable‐Density‐TVMs in Europa – Erweiterung der U‐Bahnlinie B in Lyon

Abstract

Globalisation and advancing urbanisation around the globe have a significant influence on market dynamics in tunnelling. The expansion of infrastructures in urban and regional centres calls for the construction of new transport, supply, and disposal systems to link individual economic centres. Innovative technologies in mechanised tunnelling, such as the now well‐established Variable Density TBM, are making a significant contribution to the safe and low‐settlement construction of sustainable tunnel infrastructure projects in extremely challenging and variable ground conditions. In this publication, the current developments and design features as well as the application areas of the Variable Density Technology are addressed, based on one of the first project experiences in Europe, in Lyon.