Ground freezing below a river estuary

EA Brisbane Office Level 9, 340 Adelaide St (EA Office), Brisbane, Queensland

Overview A new 1.48km road tunnel has been excavated beneath the Świna straits in northwest Poland using a 13.46m slurry TBM. To overcome the challenges posed by low overburden and complex geology, artificial ground freezing was implemented to enable safe excavation for the emergency egress structures required for motorway operations. This presentation will focus [...]

ITA Lecture Series #42 – The seismic design of tunnels and underground structures

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This instalment of the Lunchtime lecture series will focus on 'The seismic design of tunnels and underground structures' in collaboration with ITA AITES WG9. The episode will feature three lectures and will finish with a Q&A with all speakers. It will begin at 13:00 CET. Overview of seismic design - Conrad Felice The international [...]

Innovative water management for underground constructions

Webinar - Online only

Summary Water ingress during underground construction has been known to cause structural instability, heightened maintenance costs, and pose an array of safety hazards. These hazards range from the seemingly minimal moisture damage to the more severe cracking.  Traditionally, solutions such as grouting, drainage pipes, and repair injections have been employed. However, these methods are [...]