Services

We provide professional tunnel and geotechnical engineering services across all stages of a project, from planning and design to construction support and program management.

Reference and Detailed Design

Our design experts utilize our decades of international experience to develop state-of-the-art project-specific design solutions for tunnels and underground structures.

Program Management

Our program management services to major infrastructure projects ensure projects are delivered on schedule, within budget and to the highest quality while using state-of-art tunneling technologies.

Construction Management

Our construction management services cover the entire course of tunnel construction, beginning with tunnel boring, lining and waterproofing, and ending with the installation of tunnel systems.

Design Concepts, Options and Feasibility

Whether in dense urban areas or remote alpine environments, GZ's team of experts develops feasibility studies, project options and design concepts to help your project get off to the right start.

BIM and Digital Twinning

We use our experience with Building Information Modeling and digital data management tools to increase collaboration, improve project delivery and simplify asset management.

Alternatives and Value Engineering

GZ's value engineering and alternative design services ensure that project requirements are met with economical and time-saving solutions without the need to sacrifice quality.

Geotechnical Investigation Programs

GZ's full range of services cover the development of ground investigation programs, on-site supervision of drilling, sampling, and testing, as well as the interpretation of the collected data.

Geotechnical and Structural Modeling

Our staff are experts in developing numerical models that capture the physical phenomena that control the behavior of the construction of underground structures.

Procurement

From Design-Bid-Build to Public-Private­ Partnerships, we use our international project procurement experience to ensure your project is delivered efficiently and as you envisioned it.

Construction Supervision and Support

We provide a seamless link between design and construction by using strict quality control procedures to ensure correct design implementation and to guarantee a high-quality final product.

Deep Excavation and Slope Support

Our engineering services are not just performed underground - we use our geotechnical expertise to design stable and long-lasting slope and excavation support systems.

Tunnel Rehabilitation

Our extensive tunnel rehabilitation experience ensures that your rehabilitated tunnel will not only fulfill its intended purpose today, but will do so for its new design life.

Mine Support

Our team of experienced mining engineers and geologists will provide solutions to mine project challenges at all stages of development, from conception through construction to production.

Instrumentation and Monitoring

GZ’s Instrumentation and Monitoring solutions ensure that structures are monitored adequately and precisely to ensure safety and stability before, during, and after construction.

Recent Projects

Hampton Roads Crossing Quality Control
Solu River Hydropower Project
Portal Bridge Capacity Enhancement (PBCE)
Weehawken Tunnel West Portal Stabilization
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