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CRHIC's Largest Diameter Shield Machine to South America Market Launched Successfully

Time: 2023-11-22
Times of browsing: 5

On November 21 local time in Brazil, São Paulo Governor Tarcísio de Freitas of Brazil presses the start button of China Railway No. 1207 shield machine, and the cutter head of this earth pressure balance TBM with the largest diameter exported by CRHIC subsidiary China Railway Engineering Equipment Group Co., Ltd. (CREG) to South America began operating slowly, marking a significant moment when Bid Section 1 of Sâo Paulo, Brazil green metro line 2 extension officially enters the shield construction stage.


The project, as one of the key investment projects of the Sâo Paulo State Government, mainly runs from Vila Prudente to Penha. The tunnel borer worked on a total mileage of about 6,500m at stratum principally constituted by sand, silt, and clay, with the minimum turning radius of 300m and the maximum burial depth of 41m. Tailor-made by CREG to work optimally with the geological characteristics of the project site and the Client's construction conventions, China Railway No. 1207 shield machine features an excavation diameter up to 11.66m and a continuous belt conveyor system for deslagging.


CRHIC's Largest Diameter Shield Machine to South America Market Launched Successfully


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