Keywords: Digital transformation, Documentation, Production, Tunneling, Software, Time measurement, Recording
Astract: The digitalization of Architecture, Engineering, & Construction (AEC), specifically the tunneling sector, often lags behind other sectors. Today's invoicing process of tunneling projects frequently involves many manual and paper-based tasks, which are error-prone and time-consuming. Accordingly, replacing this with a fully digital process, from the tunnel face to the project owner, bears high economic potential. This article proposes an integrated digital documentation system for tunnel construction management and invoicing. A month-long case study with data from a real-life construction site is conducted to test the system's suitability. The managed data are exported to commonly used enterprise resource planning (ERP) systems for invoicing and compared to actual invoicing data. The case study has shown that the proposed approach is practical and helped streamline and improve the construction documentation processes in conventional tunnel construction. The proposed solution represents an incremental contribution to the digital transformation of the AEC sector.

Keywords: tunneling, data capture, invoicing, digitalization, documentation

Keywords:
Astract: The digital transformation is having a huge impact on many sectors of the economy. Recently, it has gained momentum in the construction industry and in tunnelling in particular. This article explains the challenges associated with the digital transformation of tunnelling and how they are being addressed by a current research project. The project is an inter-university and interdisciplinary project with the aim of advancing digitalisation in tunnelling. The article discusses the topic using various use cases that demonstrate solutions to the current challenges.

Keywords: Building Information Modelling (BIM), Data Drops, digital transformation, Economic and legal issues, Employer's Information Requirement, General
Astract: In the Architecture, Engineering and Construction (AEC) industry, as well as in the tunnelling domain, inter-company processes between partners in different roles in large-scale construction projects still exhibit great potential towards digitalisation. Thereby, information should be seamlessly shared between partners according to the Building Information Modelling (BIM) paradigm. Today, different types of artefacts (e.g., models, plans, documents, etc.) are shared at different points in time, which differ in terms of requirements, information content, as well as data formats. In this article, we extend and prototypically implement the concept of Data Drops to provide those artefacts in a digitalised form via a shared Data Drop management platform. For this purpose, we have developed a formal, well-defined indexed data structure on a metadata level. This not only facilitates traceability, but also enables searching for specific meta-information and provides a common view on Data Drops. In addition, a networked view between different drops can be provided. The approach is being evaluated on the use case of a real tunnel construction project.

Keywords: Construction works, Conventional tunneling, digital transformation, documentation process, General, New Austrian Tunneling Method (NATM), software tool, tunnel process management
Astract: The documentation of the tunneling process is a crucial task of every tunnel construction project. It provides evidence of the work performed and thus, serves as a basis for invoicing and for several further analyses. Therefore, continuous digitalisation of this documentation is essential. For this purpose, we provide a digital Tunneling Information Management System (TIMS), which is a prototypically implemented software tool for replacing the still common paper-based documentation process of tunneling projects using the New Austrian Tunneling Method (NATM). The data model presented here defines the data structures managed by this tool. Based on this, the software architecture and the implementation of TIMS is shown.