Integrated BIM‐to‐FEM approach in mechanised tunnelling

Abstract

In current tunnelling practice, Finite Element (FE) simulations form an integral element in the planning and the design phase of mechanised tunnelling projects. The generation of adequate computational models is often time consuming and requires data from many different sources, in particular, when manually generated using 2D‐CAD drawings. Incorporating Building Information Modelling (BIM) concepts offers opportunities to simplify this process by using geometrical BIM sub‐models as a basis for structural analyses. This paper presents a Tunnel Information Model (TIM) as a BIM specifically tailored to fit the needs of mechanised tunnelling projects and a ”BIM‐to‐FEM“ technology, that automatically extracts relevant information (geology, alignment, lining, material and process parameters) needed for FE simulations from BIM sub‐models and subsequently performs FE analysis of the tunnel drive. The results of the analysis are stored centrally on a data server to which the user has continuous access. A case study from the Wehrhahn‐Metro line project in Düsseldorf, Germany, is presented and discussed to demonstrate the efficiency and the applicability of the proposed BIM‐to‐FEM workflow.

Distribution Technique of Green Material List for High-Rise Building Engineering in BIM Technology

“…In formula (8), ϖ represents node power, r represents execution time, and t represents total energy consumption. When random tasks are scheduled run in a list allocation mode, the energy consumption is made up of all nodes in the inventory allocation, and each node's energy consumption is proportional to the amount of power it consumes and the average execution time.…”

“…BIM technology is a novel concept in ongoing growth, and its de nition evolves in tandem with technological advancements. As a result, although there are numerous variations of the de nition and interpretation of BIM, the de nition of BIM is primarily represented in the fact that BIM is used across the whole construction project life cycle [6][7][8]. It combines the data from all of the building's components.…”

Automated preprocessing of building models for structural analysis

“…-BIM authoring tools allow communication with other stakeholders via standardized formats, such as industry foundation classes (IFC), or provide additional methods that can import and edit models originating from other software tools [13].…”

Digitalisierung und IoT im maschinellen Tunnelbau – Ein integraler Ansatz

“…Durch die Integration der Simulationen in die CloudPlattform wird dieser Vorgang immens beschleunigt, da die benötigten Daten automa tisch aus dem zentralen Datenspeicher der Plattform gele sen werden, um die Simulationsmodelle zu konfigurieren. Die Ergebnisse der Simulationen werden dann zurück in den zentralen Datenspeicher der Plattform geschrieben, wo sie zur Auswertung und Optimierung herangezogen werden können [11].…”

“…Um den maximalen Nutzen aus einer integralen Platt form zu erhalten, müssen die einzelnen Komponenten since the required data can be automatically read from the central database of the platform in order to configure the simulation models. The results of simulations are then written back into the central database of the platform, where they can be used for evaluation and optimisation [11].…”