Engineering geological investigations for the foundations of large structures-examples of a concrete dam and a long bridge in Portugal |
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| Authors: | Ricardo Oliveira |
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| Institution: | 1. COBA and New University of Lisbon, Lisbon, Portugal
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| Abstract: | The safety of large structures requires adequate foundations, which implies a good knowledge of the geological and geotechnical
conditions of the respective ground. In general, that is only possible through engineering geological studies which include
proper site investigation techniques, adapted to the nature of the ground (rock mass or soil) and to the associated engineering
problems. The paper illustrates the studies carried out for the design of the foundations of Ribeiradio 76 m high concrete
gravity dam in a difficult rock mass and of Vasco da Gama Bridge, 13 km long, crossing the Tagus River in Lisbon, Portugal,
through piles 75 m deep. |
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