Five2Watch

摘要

The future 34th Street Station is taking shape as the cavern walls continue to be lined with cast-in-place concrete. Work is being staged to allow the tunnel-boring machine (TBM) mucking operation, removing excavated rock, to continue while the concrete is poured. The mezzanine-slab formwork, which is now in place, has been designed to allow the muck trains to pass beneath while the mezzanine slab is installed, allowing both to proceed simultaneously.