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Track Projects

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  • Tunelmak
  • Robbins
  • PPS
  • CBE
  • Daetwyler
  • Normet
  • Geodata
  • Terratec
  • IPS

Crossover Machines bridge the Gap in Mixed Ground

Robbins’ Crossover series of TBMs is a line of field-tested, rugged Dual Mode-type machines.  Crossover TBMs feature aspects of two TBM types, and are ideal for mixed ground conditions that might otherwise require multiple tunneling machines.  The XRE (standing for Crossover Rock /EPB) is the most common type of hybrid machine, and features characteristics of Single Shield Hard Rock machines and EPBs for efficient excavation in mixed soils with rock.

Additional types of Crossover machines include the XSE (Crossover between Slurry/EPB) and the XRS (Crossover between Rock/Slurry) TBMs.  The Crossover series is quickly gaining in popularity, with Robbins Crossover TBMs currently boring in locations including the U.S., Mexico, Turkey, and Albania. 

The Crossover terminology embodies the concept that the machines are able to “cross over” between modes, says Robbins President Lok Home. The unique machines are a top focus point for the company: “Robbins comes at this business with extensive rock experience so everything we design comes with the assumption that there will be tough conditions. When you have to “cross over” to another mode then already you are in difficult conditions, and contractors need robust machines to get through these challenges.” 

Crossover machines have been used with great success worldwide. An 8.0 m (26.2 ft) XRE TBM completed two decline tunnels at Australia’s Grosvenor Coal Mine in defining fashion—more than 14 times faster than the rate of a roadheader in similar conditions. The machine achieved a rate of 70 m per week vs. 5 m per week for a roadheader on average.

Most recently an XRE TBM broke through at Mexico City’s Tunel Emisor Poniente (TEP) II project in Spring 2017. The unique machine achieved national records for excavating 57 m (187 ft) in one day and 702.2 m (2,303.8 ft) in one month and successfully navigated hard rock, fault zones, and low cover soft ground. Watch the video here.

Crossover Machines bridge the Gap in Mixed Ground

For more on Crossover TBMs and the latest project updates, visit www.TheRobbinsCompany.com.

Strata Emergency Refuge Chambers

Strata Worldwide’s Tunneling Chambers are refuge chambers constructed specifically for tunneling applications. They can be mounted directly onto Tunnel Boring Machines (TBM’s), onto rails or placed within the tunnel while operations are active.

Chambers are complete safety systems designed to provide immediate shelter and breathable air in the event that air quality in the working environment becomes compromised. They are intended to be an alternative option when escape is not possible.

Strata Chambers

Chambers are equipped with a standard 48 hours of on-board breathable air, including a carbon dioxide scrubber with CO removal, 48 hours of battery back-up, lights, air conditioning with a dehumidifier, communications as required, gas monitoring, food , water and a lavatory. Download PDF brochure here and visit: http://www.strataworldwide.com

Putzmeister Concrete Spraying Technology

The concrete spraying equipment Putzmeister SPM 500 Wetkret has a spraying arm with 17 m reach for a precise shotcrete application. The Putzmeister concrete pump is specially designed for concrete spraying, guaranteeing high performance, low pulsations and long life for the wear parts. Its concrete flow of 30 m3/h increases productivity in large projects.
Furthermore, the SPM 500 Wetkret series is equipped with an automatic system, electronically controlled, for high precision synchronization between the concrete pump and the additive dosing unit, permitting efficient high precision and quality spraying. The equipment is also available with an electric air-compressor built into the chassis, which endows it with high mobility and the possibility to work autonomously.
SPM 500 Wetkret has proven its efficiency and reliability in a large number of projects all over the world, for example:

- Rodoanel, Sao Paulo
- Ruta del Sol, Colombia
- Chuquicamata Underground mine, Chile

Download the catalog of SPM 500 Wetkret for more details: http://putzmeisterunderground.com/images/catalogos/spm-500-wetkret-eng.pdf 

SPM 500

Tunnel Segment Moulds by CBE Group

CBE designs and creates high precision precast formworks for the production of concrete pieces, handling equipment and turnkey precast facilities for tunnel segment moulds for all underground building sites. Formworks are designed by a 3D software and may have any size. CBE offers moulds with anchored gasket technology, automatic covers or liner formworks. Since our participation in the Eurotunnel construction, we gained a unique experience of 520 precast manufacturing plants including 200 carousel type worldwide. Recent projects include: Sydney Metro (Australia), Aberdeen Harbour Expansion Project (Scotland), Chidlom Electricity (Thailand), Grand Paris Ligne 15 (France), Metro Moscow (Russia), Mumbaï Metro (India), Hinkley Point (UK), Eole (France).

CBE Group
17 rue Frédéric Joliot Curie
F-37550 St. Avertin


Successful tunneling with TBMs demands a Guidance System of the best quality and the highest achievable accuracy.
TAUROS TBM is a brand new development by Geodata which offers just that – and much more.
The modular system consists of tunnel proof hardware and offers intuitive solutions for guidance of gripper and double shield TBMs.

– Clear and Intuitive User Interface
– Fully Automatic TSC Measurement System
– Ring Sequencing Module
– Robust Camera Measurement Unit
– Single and Double Shield Mode
– Semi-automatic Correction Curve Calculation

A continuous display of the current position and heading of the TBM is the main task of this system. Additional data and information necessary for operating and guiding the machine is displayed within an intuitive and straightforward user interface which demands only limited user interaction.
The guidance system consists of several sensors and measurement systems which are equipped with the latest technology and which are influenced by more than 25 years of experience in tunnelling.
These sensors and systems are linked, providing a position determination of the TBM with an accuracy of a few centimetres which results in a high-quality tunnelling process.

Geodata Products
For more information click here
Leoben Head Office
Hans-Kudlich-Straße 28
8700 Leoben
Phone: +43 (0)3842 26555-0
Fax: + 43 (0)3842 26555-5


Normet introduced its new concrete sprayer Spraymec 5070 VC with Tier 4 Final (Stage IV) engine in the Euro Mining exhibition in Tampere, Finland on 20-21 May.
The Spraymec 5070 VC is designed for medium capacity spraying works and it can be seen as a “little brother” of Spraymec 8100 VC as it uses the same high performance carrier but comes with somewhat lower capacity spraying features as the “big brother”.
New features include the new spraying boom SB307 providing good reach in tunnel profiles up to 7 m. The boom is equipped with self-lubricating slide pieces and roller to minimize wear and tear. All the boom movements are pressure compensated and have proportional functions allowing operator to create smooth and homogeneous tunnel lining structure.
The Spraymec 5070 VC uses Normet’s low pulsation concrete spraying pump (NSP30) with a theoretical concrete output 28 m3/h and  FAD 10 m3 / min / 7bar screw –type compressor which gives reliable and sufficient air supply for medium capacity spraying works.
The same intuitive nozzleman’s interface is available for the Spraymec 5070 as is standard for the Spraymec 8100. This includes operator being able to carry out all spraying functions from the radio remote control and follow spraying process parameters though a turntable and movable multi-colored display placed on the front of the machine. Service easiness is arranged through open access to all service points.
Highly accurate accelerator dosing system either with mono-type screw pump or optional low-pulsation Normet LPP-D peristaltic pump is synchronized automatically with concrete output
Norsmart control system can log all spraying process and carrier data such as concrete and accelerator volume, dosing percentage, pumping speed, change of process parameters, engine and compressor hours, hydraulic oil system pressure and temperatures etc. The NorSmart system also provides full fault diagnostics.
The recorded data can be delivered to supervisory checks via USB drive or machine data can be sent out to an external server via WLAN and GPRS..
The available engine options for the Spraymec are Tier 3 (Deutz) and Tier 4 Final (Cummins).
The Tier 4 Final technology utilizes SCR (Selective Catalytic Reduction) and DEF/Ad-Blue (Diesel Exhaust Fuel) urea technology for exhaust after treatment.
The new Spraymec 5070 VC is available for factory deliveries in Q4 2015. For further information click here.


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