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Fresa meccanica a piena sezione - Wikipedia La fresa meccanica a piena sezione, comunemente chiamata talpa o talpa meccanica (ingl. tunnel boring machine da cui la sigla TBM) è una macchina che permette la meccanizzazione completa dello scavo delle ...

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A roadheader, also called a boom-type roadheader, road header machine, road header or just header machine, is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track ...

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A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.They may also be used for microtunneling ...

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Project Camelot | Underground bases and tunnels The first section of this page was written by Phil Schneider:. Photo of United States Air Force tunnel boring machine at Little Skull Mountain, Nevada, USA, December 1982.

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A tunnel boring machine (TBM), also known as a "mole", is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata.They may also be used for microtunneling. ...

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