The NSW Chapter of the ATS is having its annual AGM on 14 December 2022. Subhash Soni from TfNSW will also provide a presentation on his experiences with TBM tunnelling in the Himalayas.

Aaron Lippett, NSW Young Members Representative, will also provide a brief update on the Young Member’s initiative to update the ATS Tunnel Design Guideline.

Subhash’s presentation covers the challenges faced during TBM tunnelling in complex Himalayan geology at greater depth where ground conditions are highly variable with numerous fault zones. The complexity of tunnelling in the Himalaya’s coupled with case studies including retrieving the stuck TBMs and retrofitting the machine to resume operations. This promises to be an interesting talk to end the year.

Dr. Subhash Soni is a Fellow member of Engineers Australia and working as Technical Lead for Tunnel Structure within Advance Technical Services of TfNSW. He has more than 20 years’ experience in the design and construction of tunnels in road, metro, rail, hydropower desalination and other utilities.