STUDENTS' PAPER. NOTES ON THE CONSTRUCTION AND SETTING-OUT OF TUNNELS IN THE LONDON CLAY.

Keywords: UK, PERRY, CONSTRUCTION, SETTING OUT, TUNNELS, CLAYS, TRAVERSE, SURVEYS, UNDERGROUND, RAILWAYS, EXPANSION, STEEL, TUNNELLING, SHIELDS, CHAMBERS, FORCES, LONDON CLAY, GREATHEAD, ELECTRIC, TUBES, BAKERLOO LINE, DRIVING, LONDON, BAKER STREET, BAKERLOO LINE, WATERLOO