Gripper TBM - Experts for tough hard rock
Herrenknecht Gripper TBMs have proven to be efficient solutions for fast mechanized tunnelling in hard rock on many occasions. Due to the process-typical rock support method without segments, medium to high rock strengths are a requirement for high advance rates. In more fractured geological formations, various systems for immediate rock support behind the cutterhead are installed at the TBM directly.
(Picture: Final breakthrough at the Gotthard Base Tunnel on 15 Oct. 2010, Switzerland)
AVN Machine - Powerful all-rounders for tunnelling in all geologies
Herrenknecht AVN or Slurry Machines with a cone crusher are all-rounders for safe tunnelling in the diameter range of 0.4 to around 4 meters. These microtunnelling experts show their full potential particularly in non-accessible machine sizes. The slurry-supported excavation concept makes it possible to use these machines in all kinds of ground conditions. (Picture: Completed tunnel for a gas pipeline underneath the Qiantang River in China)
Mixshield - Safe tunnelling technology for heterogeneous ground
The Mixshield technology developed by Herrenknecht is an advance on conventional slurry technology. The support pressure in the Excavation chamber is precisely managed using an automatically controlled air cushion. This means that heterogeneous geologies and high water pressures of more than 15 bar can be controlled safely even with very large excavation diameters.
Phone: +49 7824 302-0
Herrenknecht (Chengdu) Tunnelling Equipment Co. Ltd.
No. 568 Yashi Road, Economic & Technological Development Zone
Phone: +86 28 84866060
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