Construction Solutions Blog

Using Super Water Absorbers for Soil Conditioning in EPB Tunneling

Using Super Water Absorbers for Soil Conditioning in EPB Tunneling

Underground construction in the soft ground below the water table using Earth Pressure Balance (EPB) tunnel boring machines (TBMs) is undergoing tremendous growth. The ...
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What is an Earth Pressure Balance (EPB) Tunnel Boring Machine?

What is an Earth Pressure Balance (EPB) Tunnel Boring Machine?

Tunnel boring machines (TBMs) are highly specialized machines designed to bore through the earth to construct a variety of infrastructure, from super-highways to ...
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Back at the Hagerbach Test Gallery

Back at the Hagerbach Test Gallery

For more than 15 years, underground construction experts from all over the world have participated in our popular workshops at the Hagerbach Test Gallery in Switzerland. ...
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Reducing CO2 in Sprayed Concrete for Tunnelling Applications

Reducing CO2 in Sprayed Concrete for Tunnelling Applications

Sprayed concrete construction in double-shell lining is a CO2-intensive construction method for tunnel structures. We identify design improvement potentials and propose ...
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10 Ways to Reduce Segmental Tunnel Linings’ Carbon Footprint

10 Ways to Reduce Segmental Tunnel Linings’ Carbon Footprint

Segmentally lined tunnels use a large quantity of concrete, with the associated carbon burden that brings. However, rethinking your approach early on can reduce the ...
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