ABSTRACT
We present a Building Information Modelling (BIM) approach for planning and managing underground tunnel construction projects. The methodology uses parametric modeling to simulate the entire construction process, from rock grouting to rock support. This allows for the calculation of various project metrics, including time schedules, resource allocation, quantity take-off and environmental impact assessments. The model can track key performance indicators (KPIs) throughout the project lifecycle, including carbon footprint, wastewater generation, and remaining nitrate levels after blasting.
We provide examples of application in recent underground projects. These examples demonstrate how the methodology was applied to identify the most time-intensive activities and optimize their execution, plan and prioritize excavation activities in parallel, and to monitor environmental impacts and make informed decisions about resource allocation. This leveraged transparency and quantifiable data for stakeholders to make informed decisions.
