RIO GETS FIRST EVER TBM

摘要

Brazil: A TBM with an 11.46m diameter has been supplied for the construction of the new metro Line 4 in Rio de Janeiro. Brazilian construction companies Construtora Norberto Odebrecht/Construtora Queiroz Galvao/ Carioca Christiani Nielsen Engenharia accepted the Herrenknecht machine, which will be used to bore a 4.6km long section of the 14km metro line.