Skip to main navigation Main Navigation Services / Tunnel and Underground / Tunnel and Shaft Design Tunnel and Shaft Design Trenchless Technology Design Building Information Modeling (BIM) Advanced Numeric Modeling Project Risk Management – Tunnel and Underground Inspection and Rehabilitation Construction Engineering – Tunnel and Underground Program Management/Construction Management Mine Rehabilitation Soft soil, different rock formations, wet conditions, and historical construction debris are just a few factors that impact tunnel and shaft design. We conduct detailed reconnaissance and feasibility studies on project sites to determine the appropriate tunnel geometry, construction methods, and support systems, with cost estimates suitable for comparative evaluation of alternatives. Construction documents/design reports, geotechnical interpretive reports (GIR), geotechnical data reports (GDR), geotechnical baseline reports (GBR), construction drawings, and specifications Rock and soft ground tunnels preliminary and final liner design for highway, water supply, and sewer tunnels in rock and in soil; tunneling methods including digger shields, conventional and pressurized face TBMs Initial and final support design rock bolts, shotcrete, lattice girders, liner plate, rib and board initial support, and cast-in-place and precast concrete final support liners NATM (New Austrian Tunneling Method) design and construction method, making use of the host material’s strength and deformation properties, controlled deformation, and reactive lining techniques to provide ground support in rock and soft ground tunnels Numerical methods for design; finite element (PLAXIS®) and finite difference (FLAC®) methods for determination of stress and deformation around underground openings Cavern design ground support in large underground openings such as pump chambers, tunnel intersections, and underground hydroelectric generating stations Mine engineering shaft and roof support design for hard rock and salt mines Tunnel inspection and rehabilitation inspection of vehicular, rail, hydroelectric, and pedestrian tunnels and underground chambers for fitness-for-service and/or rehabilitation Constructability review and cost estimating analysis of probable cost prepared using contractor style estimating methods and software Risk assessment and management evaluation of planning, procurement, design, construction, and operational risks; development of strategies to mitigate cost and schedule impacts PROJECTS Quarry Conversion to Citizens Reservoir Indianapolis, IN Dallas Area Rapid Transit Tunnels and Station Dallas, TX SEE MORE OUR EXPERTS George R. Teetes, PhD, PE President, Tunnel and Underground Services Board of Directors Read Bio James E. Parkes, PE Senior Associate Technical Tunneling Director Read Bio Matt Koziol, PE Senior Engineer, Tunnel Engineering Services Group Read Bio Markets Government Power and Energy Transportation Water Commercial Cultural Industrial Institutional Services Dam and Levee Geoprofessional Structures and Facilities Tunnel and Underground Water Supply, Conveyance, and Distribution Construction Phase Services Environmental Risk Portfolio About Careers Privacy Terms of Use Contact © Copyright 2021. Schnabel Engineering, Inc. All Rights Reserved. | All engineering services in the following states are performed by Schnabel’s respective affiliated entity: Michigan: Schnabel Engineering of Michigan, Inc.; New York/Connecticut: Schnabel Engineering of New York; North Carolina: Schnabel Engineering South, P.C.