THE FUTURE OF TRAFFIC
LEADS UNDER GROUND.

GROWTH IN THE WORLD'S CITIES AS A CHALLENGE. By the middle of this century, the world’s population is expected to have reached nine billion and two thirds of these people will live in large conurbations. To keep people and goods on the move, the way ahead for new efficient infrastructures goes underground. Road, metro and railway tunnels are creating new room for
maneuver underground.

TAILOR-MADE TUNNELLING TECHNOLOGY. Herrenknecht has the key technology to create precise new underground links. As the only company worldwide, we deliver cutting-edge tunnel boring machines for traffic tunnelling for all ground conditions and with all diameters – ranging from 4.20 to 19.0 meters. With experience of more than 600 projects all around the world, we can provide full-range tunnelling solutions integrating customized tunnel boring machines, additional equipment as well as all-inclusive services.

Specialists in mixed-face, complex geologies, very high water pressures and very large diameters (up to 19 meters).

• Precise support of the tunnel face by means of closed-mode, slurry-supported tunnelling with controllable compressed air bubble
• Rapid change of the tunnelling mode for different geological conditions (flexible mode combination) possible with convertible Mixshields
• Greatest possible ground control and avoidance of subsidence and heave
• Largest machine diameter to date: 15.43 meters

Fast and safe in soft ground. Ideal for cohesive and non-cohesive soils with high clay and silt content and low permeability.

• Very high tunnelling performances in classic EPB soils
• Suitable for non-cohesive, water-bearing soils up to a maximum of 4.5 bar using soil conditioning with surfactant foam
• Suitable for use in heterogeneous soils with a mainly granular consistency using soil conditioning with surfactants and polymers
• Largest machine diameter to date: 15.20 meters

Uncompromising in hard rock. Optimum solution for tunnelling through stable, solid rock formations.

• Maximum contact pressures for high tunneling performances even for large diameters, rock strengths of up to 280MPa and high overburdens
• Comprehensive mechanized rock-support methods allow rapid securing of the excavated tunnel, approx. 4 meters behind the cutterhead
• High level of working safety for all operators
• Largest machine diameter to date: 12.40 meters

The right choice for brittle rock and/or soft rock.

• Very broad and safe range of uses in hard rock with shield tunnelling and lining segments
• Very high consistent tunnelling performances
• Combinable with EPB procedure
• Largest machine diameter to date: 13.21 meters

Twice as fast. High-performance product for tunnelling in geologies with partial disturbance zones.

• Combines advantages of Gripper and Single Shield TBM in one machine
• Continuous tunnelling possible in stable rock formations
• Disturbance zones can be safely passed with shield tunnelling
• Largest machine diameter to date: 12.34 meters

ALL AROUND SERVICE PACKAGE. With 58 subsidiaries worldwide, the Herrenknecht Group can provide all-inclusive service packages close to our customers to support efficient tunnelling performance on site. From field service to personnel assistance+. From operational support to used tunnel boring machine refurbishment. Fast and perfectly coordinated.

PROJECT-SPECIFIC ADDITIONAL EQUIPMENT. Herrenknecht full-range solutions also include the requisite additional equipment optimally adapted to tunnel boring machines and project requirements, including: segment production systems, conveying systems, rolling stock systems, guidance systems, cutting tools, separation plants as well as navigation sensors. We provide our customers with prompt and professional assistance. Anytime. Anywhere.

Herrenknecht has developed a new generation of separation plants with multi-step processes that are optimally adapted to mechanized tunnelling.

• High g-forces up to 6g guarantee top workingperformances and the separation of solid particles with a small screen footprint
• Efficient screen performance through the use of up to four shaker motors per screen machine
• Swift adaptation to changing geologies with non-bolted variable screens
• Performance capacity for bentonite suspension reprocessing of up to 2,800m³/h
• Modular construction method guaranteeing high mobility and quick installation
• Low noise emissions thanks to sound-absorbing construction

Herrenknecht is one of the leading companies in manufacturing and supplying premium high-strength cutting tools of all sizes and profiles.

• In-house production of high quality, extremely resilient disc cutters and other cutting tools
• Fast delivery around the world
• Installation and operation of cutter shops directly at the construction site
• Database-supported and cost-effective cutter management

Herrenknecht supports and supervises tunneling on site individually adapted to our customers’ requirements.

• Transportation and logistics planning for delivery and assembly of the tunnel boring machine at the construction site
• Construction site services
• Project-related spare and wear parts management worldwide
• Provision of specialized personnel

• 15.43 METERS, THE WORLD’S LARGEST.

Shanghai, China – Shanghai Yangtze River Tunnel.
The world’s two largest tunnel boring machines accomplished their missions 10 and 12 months ahead of schedule, respectively.
S-317/318 Mixshield, 15.43m, 2× 7.47km