Tunnel Boring & Excavation

Advanced underground construction using cutting-edge TBM technology and proven excavation methods.

Precision Underground Engineering

MetroTech Solutions operates one of the most advanced tunnel boring machine (TBM) fleets in North America. Our experience spans over 200 miles of subway tunnels, delivering precision excavation while minimizing surface disruption.

We utilize Earth Pressure Balance (EPB) and hard rock TBMs, each selected based on specific geological conditions. Our engineering teams employ real-time monitoring systems to ensure accuracy within millimeters, even in challenging urban environments.

From initial ground investigation to final tunnel lining installation, we manage every aspect of underground construction with meticulous attention to safety and quality.

Tunnel Boring Machine

Our TBM Capabilities

Earth Pressure Balance (EPB) TBMs

Ideal for mixed soil conditions and high groundwater environments. Our EPB machines maintain face pressure to prevent ground settlement.

  • Diameter range: 5.5m to 7.0m
  • Automated segment installation
  • Real-time monitoring systems
  • Minimal surface disruption

Hard Rock TBMs

Designed for challenging rock formations, delivering efficient excavation through Manhattan schist and other hard geology.

  • Disc cutter technology
  • Variable speed drives
  • Dust suppression systems
  • Up to 15m advance per day

Sequential Excavation Method

Conventional mining techniques for complex geometries, station caverns, and special structures.

  • Controlled blasting protocols
  • Shotcrete support systems
  • Ground reinforcement
  • Flexible for irregular shapes

Safety & Quality Assurance

Zero-compromise approach to worker and public safety

Continuous Monitoring

24/7 surveying and instrumentation to track ground movements, tunnel alignment, and structural integrity.

Environmental Controls

Groundwater management, vibration monitoring, and noise mitigation to protect surrounding communities.

Worker Safety

Comprehensive training programs, confined space protocols, and emergency response systems.

Quality Verification

Independent testing laboratories and third-party inspections ensuring specification compliance.

Tunnel Boring Excellence

200+

Miles of Tunnels

15

Active TBMs

99.8%

Accuracy Rate

Zero

Lost Time Incidents (2024)

Let's Discuss Your Tunnel Project

Contact our tunnel engineering specialists to explore how we can deliver your underground infrastructure project.

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