Four large diameter soft eyes have been installed in the diaphragm wall cages of the new Singapore MRT Marine Terrace Station during August 2017.
Soft-Eyes são feitos de vergalhões GFRP, que são utilizados para substituir o reforço de aço nas D-Walls de poços de construção. Quando a Tunnel Boring Machine (TBM) rompe as D-Walls, ela corta facilmente as barras de GFRP, economizando tempo no cronograma do projeto e dinheiro no uso do equipamento.
A Dextra tem sido a pioneira nesta aplicação desde a sua primeira utilização no projecto do metro de Banguecoque em 1998 e tem uma vasta experiência no design e fabrico interno de Soft-Eyes.
The D-Walls installed on Terrace Station also feature Bartec® rebar couplers, a common application which allows for the horizontal re-connection of the station slabs.
Left: Part of the Soft Eye with overlap between steel & GFRP
Right: Bartec couplers in the D-Wall will be used for slab reconnection.
Left: Raising the Soft Eye in position
Right: Vertical position. Circular shape of the TMB breakthrough target is visible in light color.