Oppgavenr: MSA12
Tilknyttede emner: TBA4171 - Bygnings- og materialteknikk, videregående kurs
Bakgrunn:
An important aspect when assessing the sustainability of a tunnelling project is to consider different excavation methods (i.e. TBM and drill and blast). However, the impact of these methods on the potential to reuse tunnel muck including fill material and concrete aggregate has often received scant attention. This work aims to overcome this shortcoming by studying the influence of different tunnelling methods on the quantity and quality of the produced muck.
Kort beskrivelse av oppgaven:
The methodological approach will be based on a life-cycle assessment which replicates the entire tunnelling process starting with the excavation at the tunnel face and a potential reuse of the excavated material. This will consider the volume of produced tunnel muck, which likely changes with the used tunnelling method, the requirement for mineral processing and the need for landfill. Typical parameters that will be quantified include embedded energy, greenhouse gas emissions and economic costs. The procedure will be applied to a tunnelling project in Norway. This investigation will provide an opportunity to incorporate the reuse of tunnel muck when deciding about the most sustainable tunnelling method.
Data from ongoing tunnelling project
Antall studenter på oppgaven: 1-2
Kontaktperson ved IBAT: rolf.bohne@ntnu.no
Eksterne samarbeidspartnere:
NGI, Priscilla Paniagua and Stefan Ritter