Brunels tunnelling shield
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Brunels tunnelling shield
Brunels tunnelling shield. This three-tiered frame was proposed by Sir Marc Isambard Brunel (1769-1849) in 1823 for use in the construction of a tunnel beneath the river Thames, London, England. Two plans of the tunnel are seen at top and upper centre. This shield consists of 11 frames, each split into 3 compartments, that could be edged forward independently. The frames support the tunnel sides while allowing excavators and bricklayers to work from within them. When tunnel construction began in 1825 a 12-frame version of the shield was used. The Thames tunnel, which ran between Rotherhithe and Wapping, was completed in 1873. Engraving taken from Mechanics Magazine (27th September 1823)
Science Photo Library features Science and Medical images including photos and illustrations
Media ID 6468639
© SHEILA TERRY/SCIENCE PHOTO LIBRARY
1823 Construction Design Device Digging Drawing Engineering Engraving Excavation Frame History Of Science Lining Proposal River Thames Sepia Tier Tunnel Tunnelling Under Ground Wooden Cells Frames Sir Marc Isambard Brunel Thames Tunnel Tunneling Shield Tunneller Tunnelling Shield
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