Mott MacDonald’s experience in engineering tunnels for all types of uses – transport, water, utility – in every kind of ground from the hardest rock to the softest clay means we’re experts in all tunnelling techniques and forms of tunnel construction.

Soft ground tunnels
Our skills cover all aspects from assessing economic feasibility to specifying tunnel boring machines (TBMs) to controlling settlement

Rock tunnels
Tunnels through chalk, granite or basalt using drill and blast, sequential excavation methods or TBM – Mott MacDonald’s track record spans the whole spectrum of rock tunnelling

Tunnel linings
We’ve been leading award-winning advances in tunnel lining design and development for many years

Shotcrete lined tunnels
We combine state of the art analysis techniques and monitoring systems with full risk management services and ongoing research and development

Immersed tube tunnels
From early planning and environmental studies through design and construction to operation and maintenance, our expertise covers all development stages

Cut-and-cover tunnels
At Mott MacDonald we design solutions that maximise the benefits of speed, economy, ease of construction and added safety in both urban and rural locations

Jacked tunnels
We’ve earned a leading reputation for jacked tunnel schemes under major facilities such as operational multi-track railways, highways and airport runways

Shafts
Our track record features some of the deepest and largest diameter shafts achieved for infrastructure projects throughout the world

Caverns
From advanced numerical modelling of excavations to fire life safety assessments, our expertise covers every aspect of large span cavern development

Tunnelling terms
A handy guide so that you fully understand all the technical tunnel terms