The Leaning Tower of Pisa

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Alternatives to Restoration• In 1838, architect Alessendrodella Gherardesca constructeda walkway around Tower base• Water filled the walkway areaafter the excavation extendedbelow water table• Plan increased tilt of Tower byover one quarter of a degree• Gherardesco placed 0.7 meterthick ring of concrete aroundwalkway to help stabilizeTower, but excavation nearlycaused its downfall
Alternatives to Restoration• In 1934, engineersused grout injection tostabilize the foundationof Tower• This process led to adisplacement of Tower• The tip of Tower tilted10 mm more to Southhttp://www.pubs.asce.org/ceonline/ceonline02/0302feat.htmlhttp://www.intl.pdx.edu/EdAbroad/2006PhotoContest/Buildings%20&%20Architecture/Buildings%20&%20Arch%201/images/The%20Leaning%20Tower%20of%20Pisa_jpg.jpg
Page 1 and 2: The Leaning Tower of PisaMike Bartu
Page 3 and 4: Construction of The Tower• Work o
Page 5: The Leaning Tower Today• From ear
Page 9 and 10: Alternatives to Restoration• One
Page 11 and 12: http://www.endex.com/gf/buildings/l
Page 13 and 14: Restoration of The Tower• First s
Page 15 and 16: Restoration of The Tower• Soil ex
Page 17: Restoration of The Tower• Restora
Page 21 and 22: Other Items of Interest• There ar
Page 23 and 24: The Future of The Leaning Tower•

The Leaning Tower of Pisa

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