Next Generation of Hybrid TBMs for Mixed Ground

The use of hybrid TBMs in a mixed and unpredictable underground environment is increasing. This report concentrates on the advances achieved by hybrid TBMs, focusing on what is likely the most common type: A cross between a hard rock single shield TBM and an EPB.

Desiree Willis, Technical Writer, The Robbins Company, Kent, WA/USA

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Issue 2013-03

Next Generation of Hybrid TBMs for Mixed Ground

In a mixed and unpredictable underground environment the increasing use of hybrid TBMs is one that goes with the territory. Where multiple machine types might have once been used for different...

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Issue 2009-08 EPB Technology

EPB Technology opens up the soft ground Tunnelling Range

EPB design and assembly are governed by multiple variables, no matter the machine diameter – a sentiment that rings true for a large Robbins EPB TBM currently being assembled at Mexico City’s new...

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Issue 2013-04 EPB Cutters

The Next Revolution in EPB Cutters – New Cutter Designs make an Impression in Mixed Ground

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Issue 2014-08 China?/?Malaysia

Klang Valley MRT Project: Breakthrough of CREG EPB TBMs

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Issue 2011-05

Innovations and Limitations of Two Long-Standing Soft Ground TBM Designs

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