Underground Services
Engineered Solutions for Complex Underground Structures
LJB Underground Services specializes in underground infrastructure, from early planning and design to construction oversight. With more than 20 years of tunnel and trenchless experience, our team has supported some of the most technically demanding underground projects across North America.
We don’t just design tunnels. We help communities move safely and efficiently below the surface, with long-term confidence in the results.
What We Do
Our underground team includes expert engineers, geologists, and project managers who support every phase of a project. From feasibility studies to construction management, we bring technical insight, practical experience, and a collaborative approach to each assignment.
Our work spans across the United States and internationally, with a strong focus on tunnel engineering, risk mitigation, and trenchless construction methods.
LJB Services
Services
Tunnel Design & Construction Support
- Bored (TBM) and mined (drill and blast) tunnels over 3 meters in diameter
- New Austrian Tunneling Method (NATM) for soft ground and hard rock
- Final lining design for tunnels and shafts
- Support of excavation for tunnels and shafts
- Concrete and steel segment design
- Tunnel and trenchless rehabilitation
Geotechnical & Structural Services
- Ground improvement
- Instrumentation and monitoring
- Foundation and structural design
Trenchless Technologies (under 3 meters in diameter)
- Microtunneling
- Horizontal directional drilling (HDD)
- Pilot tube microtunneling
- Horizontal auger boring
Project Delivery Support
- Contract document preparation
- Construction management
- Quality assurance
Planning & Investigation
- Feasibility and alignment studies
- Ground investigation and characterization
- Qualitative and quantitative risk management
Ready to Dig?
We pride ourselves on the quality of our work and the relationships we develop with our clients.
Our combination of high caliber skills and positive personalities makes us the best tunnel design company to work for and work with.
Olentangy Augmentation Relief Sewer (OARS) Construction Management
Westside Purple Line Extension, Phase 3: Rail Transit Line
