Safety of New Austrian Tunnelling Method (NATM) Tunnels

A review of sprayed concrete lined tunnels with particular reference to London clay

Date of publication:
1996 (reissued as PDF 2014)
978 0 7176 1068 6 (out of print)

Austrian Tunnelling Method (NATM). It deals with the worldwide history of NATM failures and collapses and describes the legislation, the importance of a risk-based approach and describes a model for managing risk.

The report was produced in response to the collapse of three tunnels of the Heathrow Express Link. 

The report was published in 1996 under ISBN 978 0 7176 1068 6, and reissued as PDF only in 2014.

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Updated: 2023-08-07