--- title: Tunnel Engineering url: "https://www.systra.com/ireland/services/infrastructure-engineering/tunnel-engineering/" type: services date_published: 2023-06-20 date_modified: 2025-03-10 schema: @type: WebPage language: en-IE word_count: 907 reading_time: 5 min canonical: "https://www.systra.com/ireland/services/infrastructure-engineering/tunnel-engineering/" featured_image: "https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/06/tunnel-engineering-header.jpg" type-service: - Infrastructure Engineering --- # Tunnel Engineering ![Tunnel Engineering](https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/06/tunnel-engineering-header.jpg) **With 60 years’ experience in the field of underground structures, SYSTRA has the advanced skills required to provide innovative solutions for tunnel design and construction, supporting clients on their most challenging projects.** ### Overcoming underground construction challenges Densely populated areas, topographical challenges and limited space are making underground road and rail solutions increasingly attractive – especially in urban areas. Tunnels offer an effective, safe and sustainable way to help reduce congestion on major roads, extend public transport networks, and create new transport options for fast-growing populations. Tunnels are complex structures requiring highly specialised expertise to navigate the challenges of geology, topography and congested underground environments. Specialist surveys, expert risk management and mitigation, and advanced design technologies are required to deliver successful tunnel engineering projects. SYSTRA has six decades of experience in designing and rehabilitating underground structures, especially railway stations, road and rail tunnels around the world. We understand how to optimise the use of underground spaces, particularly in difficult geological environments and sensitive built-up areas. ### our experience Discover how SYSTRA has applied innovation, technology and ingenuity to re-think infrastructure engineering solutions to optimise time, budget, safety and sustainability. [VIEW CASE STUDIES](https://www.systra.com/ireland/our-projects/) ![design-3](https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/05/design-3-1024x645.jpg) **SYSTRA provides specialised tunnel engineering services to solve the extraordinary challenges of building new underground infrastructure – ensuring we optimise clients’ operating and maintenance performance, while reducing costs and delivery times.** SYSTRA has designed and built underground structures all over the world in the most demanding conditions – whether crossing dense urban areas, mountains or the sea. We know how to design and engineer all types of underground structure, with expertise in designing and supervising deep excavations in any geological or geotechnical context. ### Managing risks in tunnel design Risk management is at the centre of tunnel design. Our tunnel engineers help to develop proper risk matrices and identify the most suitable mitigation solutions for each project. We systematically integrate the most advanced technologies to assess and mitigate all possible risks linked to tunnelling projects. Our ability to model the complex interaction between the ground and structures enables us to develop customised solutions for every tunnelling project. We have experience of tunnel engineering in geological settings and climates across the world. Our engineers rely on interactive and geo-referenced platforms to manage and model ground data and the surrounding built environment. Geotechnical data from SYSTRA projects all around the world is stored and shared in the GIS web-application GEOShare. ![tunnels-call-out](https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/06/tunnels-call-out.jpg) ### AREAS OF EXPERTISE - **Design **– geotechnical studies; feasibility studies; concept, preliminary and detailed design; architecture and landscape design. - **BIM modelling** – civil works; road and terrain; finishes and MEPs. - **MEP design **– safety system design; ventilation and fire safety; CFD simulation. - **Value engineering** – project optimisation; asset management; new technology implementation. - **Project management –** project planning, monitoring and risk assessment. - **Construction management **– construction planning, design, monitoring and risk assessment. - **Tender assistance **– communication strategy; graphics support; schematics and renderings; illustrative videos. - **Independent checking** – code compliance; technical content; project buildability. - **Structural assessment and repair **– structural assessment; condition evaluation and inspection; repair works; rehabilitation. ### Innovative techniques for underground construction Successful underground projects rely on selecting the most appropriate [modern construction methods](https://www.systra.com/ireland/services/modern-methods-of-construction/) . We offer design solutions for all types of underground structure, from machine-bored tunnels to NATM (drill & blast) tunnels and cut-and-cover tunnels, in any kind of soil or rock. Through our many years of experience in tunnel engineering, we have developed many innovative underground solutions. These include smart cross-passage excavation techniques, advanced fire safety engineering, fibre-reinforced concrete (FRC) precast linings, and the use of expanded soft clay for backfilling. ### Worldwide tunnel engineering projects SYSTRA has been involved in major tunnel projects worldwide, such as the Tunnel Euralpin Lyon-Turin, the Ismailia twin-tube road tunnel under the Suez Canal, the Mont Blanc tunnel renovation, and the largest underground rail project in Europe: the Grand Paris Express in the Paris region. We’d love to help with your next project [Connect with our specialists](https://www.systra.com/ireland/contact/business/) ### you may also like ![Expert Insights](https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/05/media-enquiries-1024x645.jpg) _Expert's Insights Read more sur Expert's Insights_ ![systra-grand-paris-2](https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/08/systra-grand-paris-2.png) - News 18 August 2023 ### Reinforcing tunnelling expertise with Bamser & Subterra acquisitions SYSTRA strengthens its expertise in tunnelling with the acquisition of two specialist companies, Bamser in Australia and Subterra in Spain. [ Read more ](https://www.systra.com/ireland/news/reinforcing-tunnelling-expertise-with-bamser-and-subterra-acquisitions/) ![sustainability_header](https://www.systra.com/ireland/wp-content/uploads/sites/24/2025/10/sustainability_header-1024x645.jpg) _Sustainability at SYSTRA Read more sur Sustainability at SYSTRA_ [Join our community](https://www.systra.com/ireland/register/join-our-community/) ![](https://www.systra.com/ireland/wp-content/uploads/sites/24/2023/03/careers-1024x323.jpg) Interested in progressing your [career](https://www.systra.com/ireland/careers/start-a-career-at-systra/) at SYSTRA? Find out more about opportunities in our careers section. [SEARCH CAREERS](https://www.systra.com/ireland/careers/start-a-career-at-systra/) ## Check our other services ### Transport Advisory ### Engineering & Design Management ### Environmental Services ### Future Mobility ### Development & Infrastructure ### Environmental Strategy ### Digital Engineering ### Programme & Project Management ### Business Case, Funding & Strategy ### Digital Solutions and Software Development