Double-shield tunnel boring machine

double-shield tunnel boring machine
double-shield tunnel boring machine
double-shield tunnel boring machine
double-shield tunnel boring machine
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Characteristics

Options
double-shield
Diameter

Min.: 2.8 m
(9'02" )

Max.: 12.5 m
(41'00" )

Description

Double Shield TBMs are among the most technically sophisticated tunnel boring machines. They unify the functional principles of Gripper and Single Shield TBMs in one machine. Under stable geological conditions, the combination of methods allows for the installation of concrete segments parallel to tunnelling, achieving very high tunnelling performances. This powerful technology is therefore perfectly suited for excavating long tunnels in hard rock.

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.