Underground Highway Tunnel Construction With Fresh Concrete Lining Unfinished Asphalt Base and Repeating Structural Ribs
Keywords
highway,
tunnel,
construction,
concrete,
lining,
asphalt,
footed,
repeating,
structural,
rib,
expressway,
roadway,
road,
underground,
infrastructure,
engineering,
transport,
portal,
bore,
excavation,
retaining,
roadbed,
ventilation,
drainage,
service