Circle Line Stage I - Contract 828

Contract 828 of Circle Line Stage I covered the architectural works of the Stadium and Nicholl Highway Stations.
technical info:TBM type: EPB Hitachi diameter: 6.35 m; tunnel length: 2x1200m
The construction of the mass Rapid Transit rail system of the Singapore island have been excavated by two Herrenknecht EPBM's, that went through soft marine clays, fluvial sands, as well as strong to very strong rocks. 1200 m length twin bore and 6.61 m diameter cut.
For the concrete segment protection the product MAPECOAT W SP was selected, proving to be resistant to the abrasion caused by the brushes of scrubbing machines as well as unaffected by the passage of the TBM tail brushes.