Mighty new metro

摘要

Deep in the ground beneath the western Paris business district, the din is bone-jangling. With compact mechanical diggers, workers are excavating rubble from 22-metre (72-feet) shafts. These will take 60 supporting pillars for a vast new train station, to be buried 35 metres underground. Welcome to one of Europe's biggest infrastructure projects: an ambitious scheme to encircle Paris with a new metro loop, and shift the way people think and move about the capital.