EPB TBM Tunnelling Services – Advanced Solutions for Underground Infrastructure

Terragold & Co. is proud to expand its portfolio of underground construction services through expertise in Earth Pressure Balance Tunnel Boring Machine (EPB TBM) operations and project management.

As underground infrastructure projects become increasingly important for urban development, water management, transportation systems, and utility networks, EPB TBM technology has become the preferred method for constructing tunnels in soft ground conditions, including clays, silts, sands, and mixed-face geology. This technology enables safe, efficient, and environmentally responsible tunnel construction while minimizing surface settlement and disruption.

Our team includes experienced TBM pilots, shift supervisors, mechanics, electricians, segment erection specialists, grout operators, survey support personnel, and tunnel logistics staff with hands-on experience on modern EPB TBM projects. Terragold is capable of providing complete operational support for TBM tunnelling projects, from mobilization and machine assembly through excavation, segmental lining installation, logistics management, maintenance, and breakthrough operations.

Why EPB TBM?

EPB TBMs are specifically designed for tunnelling in soft ground environments where maintaining face stability is critical. By using excavated material within the excavation chamber to balance ground pressure, EPB technology significantly reduces the risk of settlement, groundwater inflow, and surface disturbance.

Key advantages include:

• High excavation rates
• Enhanced worker safety
• Reduced environmental impact
• Minimal disruption to existing infrastructure
• Excellent control of ground movements
• Capability to operate in complex urban environments

Our Commitment

Terragold combines mining engineering expertise, underground construction experience, and a highly skilled operational team to deliver safe, reliable, and efficient tunnelling solutions. We are committed to supporting clients throughout every phase of a TBM project while maintaining the highest standards of safety, quality, and operational excellence.

Whether acting as an operational contractor, technical advisor, or project support partner, Terragold provides the expertise and resources necessary for the successful delivery of modern underground infrastructure projects.