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NZ Chapter Event: North Auckland Line (NAL) – Bridge and Tunnel upgrade works

August 24, 2021 @ 5:30 pm - 7:30 pm NZST

Join the RTSA New Zealand Chapter in Wellington, Auckland, Christchurch or online for a presentation on North Auckland Line (NAL) – Bridge and Tunnel upgrade works. Register here.

This presentation will consist of 2 parts:

  1. Bridge presentation by Holmes Consulting
  2. Tunnel presentation by Aurecon

Part 1: Bridge Presentation by Holmes Consulting

Forming part of the Northland Rail Upgrade Project, Five Bridges were replaced across the North Auckland Rail Line. With 9 months programmed from awarding tender for design to practical competition of construction, programme posed a significant hurdle. Along with Covid-19 restrictions and the resulting supply chain issues, the project called for a ‘one team’ approach. Where possible, standardisation was implemented across the project and fast construction techniques such as segmental bridge construction were adopted to reduce onsite construction time. The presentation looks to cover some key challenges that the design team faced throughout the project journey.

Matt Ireland – Senior Project Engineer – Holmes Consulting
Matt is based in Holmes Consulting’s Christchurch office and has over 14 years of structural engineering experience in the design of bridges and civil structures. He specialises in the delivery of major infrastructure projects across the country and has been involved with a number of significant road, rail and pedestrian bridge structures.

Aidan is based in Holmes Consulting’s Auckland office and has been working in the civil structures team for 4 years since graduating from university. In this time he has worked across a number of horizontal infrastructure projects, carving an interest in soil-structure interaction and construction management.

Part 2: Tunnel presentation by Aurecon

Louise, Harry and Shu Fan will together talk about the tunnel design on the NRU.

In Northland Rail Upgrade Project (NRU), Shu Fan was the tunnel design lead for the 7 out of 13 most challenging tunnels of the North Auckland Line (NAL). Shu Fan Chau is an Associate in tunnels and the NZ Tunnel Lead at Aurecon. In addition to TBM tunnelling, his wide-ranging tunnel expertise includes mined tunnels and caverns, drill and blast tunnelling, immersed tube tunnelling, cut- and-cover tunnels, deep excavation, underground structures, site formation and slope works. Shu Fan has worked on Waterview Tunnels in Auckland, West Gate Tunnels in Melbourne and is currently working in City Rail Link.

Harry Asche is a Design Director in Aurecon and he has worked on tunnels in New Zealand, Australia, UK and HK.  He is an Adjunct Professor at the University of Queensland and is the current President of the Australian Tunnelling Society.

Louise Wotton is a computational designer at Aurecon, Computational design works to improve delivery through creation of custom digital tools and the development of automated pipelines to produce consistent, high quality deliverables.

During the North Auckland Line upgrade Aurecon developed a custom software package to generate rail gauges along the alignment and run clearance analysis checks. Over the course of the project this evolved to include drawing automation, kinematic calculations and generative solvers to build a ‘best fit’ for a new alignment in the tunnels to accommodate new rolling stock.

You can join us in person or online for this event:

  • Wellington – Engineering New Zealand, L6, 40 Taranaki Street
  • Auckland – Aurecon, Level 3/185 Fanshawe Street
  • Christchurch – Aurecon, Level 2, Iwikau Building, 93 Cambridge Terrace
  • Online via MS Teams (Please note online start time is 6pm)

Click here register on the Engineering New Zealand website.

Details

Date:
August 24, 2021
Time:
5:30 pm - 7:30 pm NZST
Event Categories:
,
Website:
https://www.engineeringnz.org/courses-events/event/north-auckland-line-nal-bridge-and-tunnel-upgrade-/

Organiser

RTSA New Zealand Chapter
Phone
+64 4 473 9444
Email
tech.groups@engineeringnz.org