Nurturing the Young –

Innovation for Sustainability

Events and Activities

[FULL] Use of New Austrian Tunnelling Method (NATM) for Tunnel Excavation

Date, time & venue 
2016-09-27;6:30pm – 8:00pm;Chan Yat Mei Sophie Room, HKIE HQ, Causeway Bay


Programme Highlight


New Austrian Tunnelling Method (NATM) also referred to as the Sequential Excavation Method (SEM) has been internationally recognised after the publication of Prof. Rabsewicz’s paper in 1964.  Numerous tunnel projects in Europe and also in many other countries have been excavated using the NATM approach since then. 


The objective of this talk is to discuss the use and application of NATM for tunnel excavation in Hong Kong. Challenges encountered and experience learnt from some practical projects, such as constructing a large span of trinocular tunnel section with separation of less than half of the combined span of trinocular tunnel underneath the existing cross harbour tunnel, will be presented




Ir Tim Leung is a Senior Resident Engineer in AECOM and a Chartered Engineer for 20 years. He graduated from the University of London in 1991 in Civil Engineering and obtained his MSc (Eng) in Civil and Structural Engineering from the University of Hong Kong in 1999.  Mr Leung is a Fellow of the Institute of Materials, Minerals and Mining (FIMMM), and a Member of HKIE and ICE. Ir Leung has in-depth and on-the-job experience in a number of large-scale challenging tunnel projects including the Ma On Shan Bypass, the Shatin Height Tunnel, Eagle’s Nest Tunnel, the Lai Chi Kok Drainage Tunnel, the Hong Kong Express Rail Link, and the HATS Effluent Tunnel. Currently, he is working on the Central-Wan Chai Bypass Tunnel.  Ir Leung specialises in various tunnelling techniques such as drill-and-blast, NATM, tunnel boring machines, cut-and-cover and pipe jacking methods. He is also very experienced in other underground works including shaft sinking, foundations, ground investigation and instrumentation monitoring.



Free of charge


Registration & Enquiries

The number of participants is limited to 80 and priority will be given to members of Civil Division. Please complete the on-line registration at  Email registration will not be accepted. Only successful applicants will be informed by email. For enquiries, please contact Ir Alex Li at


CPD Certificate

CPD certificate will be issued to those who attend the seminar.


Remarks: (The talk will be conducted in English)

* Please fill out this form completely