Supporting and Ensuring the Safety of Tunnel Projects Throughout Their Lifecycle
Our actions and expertise support decision‑making for tunnel projects, from construction to operation.
Your partner for tunnel construction and operation
Sixense is uniquely positioned to offer monitoring, scanning, noise and vibration consultancy, geophysics, and structural engineering services for your tunnels and their surrounding environment.
Discover our solutions and achievements for tunnel projects constructed in urban and non‑urban environments for transport purposes, including pedestrian tunnels, metro systems, rail corridors, road tunnels, canals, and more.
The Sixense teams bring extensive experience with dug, cut‑and‑cover, and bored tunnels built with masonry, concrete, and steel structures.
Sixense solutions for tunnels
We bring our expertise to all phases of a tunnel’s lifecycle: studies, design, construction, operation, and maintenance.
Our services support tunnels under construction as well as operational tunnels experiencing pathologies or affected by adjacent construction activities:
Monitoring
- Design, supply, install, operate, and maintain small and large monitoring programs during underground construction and for tunnels in operation.
- Monitoring covers both soil–structure behavior and environmental conditions (noise, vibration, dust, etc.).
- Our techniques range from embedded sensors to satellite‑based measurements.
Digitalization & Modeling
- Mapping and 3D modeling to deliver dimensional information and precise knowledge of construction sites and active structures.
Audit Inspection
- Specialized inspection methods designed to improve inspection efficiency and rating accuracy.
- Sixense provides digitalized inspection workflows, from data acquisition through final analysis.
Geophysics & Soil Characterization
- Ground‑based geophysical investigation methods to detect voids, anomalies, faults, obstacles, and other subsurface concerns.
Environmental and Acoustic Consultancy
- Our engineers assess nuisance levels during construction (tunnel boring, blasting) and operation (traffic, vibration) and advise on appropriate mitigation measures.
Tests Concrete Structures & Laboratory Tests
- Assessment of tunnel structure condition, particularly the lining.
- Data is collected using non‑destructive or semi‑destructive methods.
- Samples are sent to Sixense’s laboratory to analyze mechanical, physical, and chemical properties and identify material pathologies.
Engineering of Existing Structures
- Our engineers analyze structural pathologies, develop rehabilitation or repair studies, and support owners and operators in optimizing their maintenance plans.
Climate Resilience
- Our Resallience team supports you in adapting tunnels and surrounding infrastructure to climate change impacts.
Digital Simulation Model
- Sixense has developed advanced simulation algorithms to model significant stresses on tunnel structures, such as fires, explosions, earthquakes, or impacts.
- Discover the capabilities of our Sixense necs design office, specialized in advanced engineering studies.
- Our Digital Simulation Model is compliant with National Tunnel Inspection Standards