ABSTRACT
Pumped Hydro projects in Australia merge mining and civil tunnelling excavation techniques. This case study explores the application of the Integrative Feedback Loop (IFL) developed by Deswik and John Holland to optimize the Permit-To-Tunnel (PTT) process. The solution leverages the Deswik software solution and optimizes it for a civil tunnelling application. The IFL solution combines real-time data management (Geological mapping, convergence mon- itoring, geospatial scanning, and construction tolerance measurements) with the PTT process to provide a digital platform with automated, paperless, visually informative processes. The IFL, coupled with Deswik’s scheduling, data management, reporting, and operational tools, provides a centralized tunnelling database. Such continuous data flow and visualization are crucial for effectively delivering tunnel-ling projects in complex geological settings, such as those seen in pumped hydro developments. Adopting innovative software signifies a departure from traditional tunnelling tools and methods. This solution was developed during the software’s deployment at the Kidston Pumped Hydro Project in Australia, with a view to deploying it to future tunnelling projects. It facilitates design optioneering, enhanced stakeholder communication, automation, and the utilization of real-time data. The IFL promotes the continuous refinement of tunnel designs, deepens geological understanding, optimizes resource allocation, and sharpens safety measures. This case study demonstrates how innovative software solutions combined with best practice processes can foster more efficient, safer, and sustainable tunnelling operations.
