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A platform for research: civil engineering, architecture and urbanism
Scheme first planned 30 years ago nears completion
Design particulars and construction techniques of tunnel under River Tyne, Great Britain, which is furthest downstream and first tunnel for vehicular use; road tunnel has 31 ft 3 in. ID and is 5500 ft long descending at gradient of one in 20 to maximum depth 100 ft beneath river and almost immediately rising again at same gradient; tunnel is lined with cast iron segments bolted together and calked with strip capable of keeping out water at 45 psi; ventilation is on system of upward semitransverse; feature of ventilating equipment is use of movable fans; service and standby fan is mounted on rails.
Scheme first planned 30 years ago nears completion
Design particulars and construction techniques of tunnel under River Tyne, Great Britain, which is furthest downstream and first tunnel for vehicular use; road tunnel has 31 ft 3 in. ID and is 5500 ft long descending at gradient of one in 20 to maximum depth 100 ft beneath river and almost immediately rising again at same gradient; tunnel is lined with cast iron segments bolted together and calked with strip capable of keeping out water at 45 psi; ventilation is on system of upward semitransverse; feature of ventilating equipment is use of movable fans; service and standby fan is mounted on rails.
Scheme first planned 30 years ago nears completion
Consulting Engr (Lond)
1967
Article (Journal)
English
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