optimas.com
tunnel@optimas.com
Tunnel Fastening Experts
Trusted by tunnel infrastructure teams globally for over
30 years What is
Kungsträdgården , Sweden ITC 315 Superloader
OPTIFIX? An innovative and efficient fixing method for sockets in the segment moulds.
Come & Meet us!
6th Brazilian Congress of Tunnel & Underground Structures:
The Latin American Tunnelling Seminar Booths
N° 15 & 16
São Paulo, Brazil 10-12 March, 2025
CONTACT US In partnership with: Abyo TM
BUYER’S GUIDE 2025
Consulting Engineers for Railway, Road, Subway and Utility Tunnels:
• Ventilation, cooling • Aero-, fluid-, thermodynamics, environmental physics
Tunnelling’s collective expertise
Contact us to ensure your company is included. Contact Martin John for further information:
martin.john@
btmi.com
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• Risk analysis, safety • Electromechanical equipment • Measurements, tests, commissioning, acceptance
www.tunnels-directory.co.uk £95 / €150 / $199
• Numerical calculations, simulations • Tunnel ventilation simulator • Retrofit, refurbishment • Consulting, expert opinion, research
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More than 1000 tunnel ventilation systems worldwide since 1963 !
The Tunnels and Tunnelling Buyer’s Guide is the defi nitive procurement guide for the tunnelling industry.
Helping to promote machinery manufacturers, materials and chemical suppliers, site investigation specialists, ground treatment experts, designers and contractors specialised in all aspects of underground construction which ensures projects can draw on the industry’s collective expertise bringing projects to a speedy and successful conclusion at the best possible cost.
HBI HAERTER CONSULTING ENGINEERS Bahnhaldenstr. 7
8052 Zurich Switzerland
Tel: +41 44 289 3900 E-Mail:
info.zh@hbi.ch Fax: +41 44 289 3999
Web:
www.hbi.ch Zurich/Bern, CH Heidenheim, D Sydney, AUS
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