BIM meets Lean – Logistics study of a long tunnel using BIM and Lean methods

Abstract

AbstractInfrastructure projects in inner‐city areas are gaining in importance on the one hand and are subject to increasingly restrictive requirements due to the space available on the other. This affects not only the site installations, but also to a large extent the access to and the material handling on the construction sites. Implenia has been using the digital capabilities of BIM to improve project execution for several years. Visualisations, data management and collaboration create a transparency that is necessary to face the difficult boundary conditions. Lean Construction method of optimizing and stabilizing material flows, which is new to the infrastructure sector, can ideally use BIM digital tools to map its processes. It was obvious to use this symbiosis of the two methods.Implenia was commissioned in 2019 with the project 380 kV Kabeldiagonale Berlin with a nearly 7 km long TBM tunnel in the middle of Berlin. At this point in time, when the concepts for TBM tunnelling are being prepared, several insights can already be drawn that are ground‐breaking for the application in future projects.