Hobsons Bay main Yarra crossing duplication project
Melbourne Engineers Australia officeThe Hobsons Bay Main Sewer (HBMS), constructed in the 1960s, transfers approximately 30 per cent of Melbourne’s wastewater to the Western Treatment Plan at Werribee. The sewer alignment has a single sewer crossing under the Yarra River, which has deteriorated to a point where it requires rehabilitation and/or replacement. The Hobson Bay main Yarra [...]
ITA Lecture – Practical Aspects of Segmental Tunnel Lining Design
Webinar - Online onlyTopic: Practical Aspects of Segmental Tunnel Lining Design After several decades of continuous progress, mechanized tunnelling has now become the main method applied in almost all types of geology, all sizes, and in increasingly shorter lengths. The predominant excavation support system for TBM tunnels consists of a one-pass precast concrete segmental liner which in [...]
North East Link SEM Ventilation Tunnel and Adit Construction
Delve Underground Level 15 / 385 Bourke Street, Melbourne, VictoriaOverview The construction of the North East Link (NEL) tunnels is well underway! The largest transport infrastructure project in Victorian history consists of 6.5 km tunnels from Watsonia to Bulleen, and it will complete Melbourne’s orbital freeway network. The presentation will provide an overview of the recently constructed ventilation tunnel and adits using Sequential [...]
ATS technical session: Design of large underground caverns for pumped hydro projects
Online and in person at: Level 9, 340 Adelaide Street, BrisbaneOverview This webinar will be focused on the design of large underground caverns, a crucial topic with the current development of multiple Pumped Hydro schemes. The main speaker will be Mousa Hazrati Aghchai, who has a PhD in rock mechanics and a solid background in geotechnics/rock mechanics in Tunnelling, Hydropower, and Dam engineering with [...]
ITA Lecture Series – Face Stability Issues
Webinar - Online onlyThis instalment of the Lunchtime lecture series will focus on practical Face Stability Issues. This episode will feature three lectures: • Examples of tunnel face instability on site - Elena Chiriotti • Overview of mechanisms and methods to evaluate tunnel face stability - Nicolas Berthoz • Case of deep tunnels in a clay medium [...]
North East Link Project update and Australian Tunnelling Society annual meeting
Online and in person at Arup Melbourne Sky Park 1, Melbourne Quarter, 699 Collins Street, VictoriaPLEASE NOTE: Contrary to what it says on the Engineers Australia registration page, this event is completely free to ATS members. Please make sure you register using your ATS email address and the discount will be applied as you move through the registration process. Event summary Explore this year's key tunnelling developments at the [...]
Ground freezing below a river estuary
EA Brisbane Office Level 9, 340 Adelaide St (EA Office), Brisbane, QueenslandOverview 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
Webinar Register via the link to join!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 onlySummary 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 [...]