V-mole-technology

Mechanical Shaft Enlargement in Hard Rock Mining

Herrenknecht AG has developed a next generation of the rodless shaft enlargement machines that have been established on the market for decades as so-called V-Mole technology. Herrenknecht worked closely together with two very experienced companies highly renowned in the mining industry, Thyssen Schachtbau and Murray & Roberts Cementation, to update and adapt the technology to current conditions and requirements. The result is the SBE (Shaft Boring Machine for Shaft Enlargement). It facilitates high sinking speeds and maximum working safety for shaft boring using the pilot borehole. With this...

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Issue 2011-04

Vertical Shaft Construction at the Pump Storage Plant Vianden/Luxembourg

1 New capacities for the pump storage plant Vianden The pump storage plant (PSP) Vianden/Luxembourg was put into operation in 1963/1964 with 9 sets of machines and in the mid-1970s it was extended to...

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Issue 2018-05 Czech Republic

Railway Tunnel between Rokycany and Pilsen

A convertible Herrenknecht multi-mode tunnel boring machine (Ø 9,890?mm) was used to modernize the Czech railway line between Rokycany and Pilsen. The machine excavated two tunnels, each about 4?km...

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Issue 2012-04 Switzerland

Breakthrough in Limmern

Within the scope of the Linthal 2015 project, the capacity of the Linth-Limmern AG Power Station is being augmented by 1,000 MW through adding the Limmern pumped-storage hydro station. At present the...

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Germany

Albvorland Tunnel: Tunnel Boring Machine “Sibylle” Arrives at Wendlingen

In contrast to “Wanda”, the second tunnel boring machine, which is excavating the Albvorland Tunnel’s south bore, Sibylle did not build the complete tunnel to the portal in Wendlingen am Neckar....

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Issue 2019-01 Singapore ¤ Singapur

New drains for Singapore

In Singapore, a Herrenknecht tunnel boring machine (EPB Shield, Ø 5,250 mm) excavated two large drains for the Stamford Diversion Canal. The challenge: winding bottlenecks and an inner-city drive in...

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