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《岩石力学与岩土工程学报(英文版)》 2013-03
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Millau viaduct geotechnical studies and foundations

F.Schlosser a,,C.Servant b,A.Guilloux c,A.Bergere c a ENPC, France b Eiffage Travaux Publics, France c Terrasol, France  
The Millau viaduct over the Tarn River is an exceptional bridge considering the height under the deck and the 2.5 km total length. Each of the seven high piers is founded on a thick raft setting on four large piles of 5 m in diameter and 10–15 m deep. The ground schematically consists of limestone in the north and of marls in the south. As the bridge is very sensitive to foundation settlements, the concessionary company decided to use the observational method for controlling the displacements and if necessary stabilize the foundations. The measurements show that the movements have remained small and admissible, particularly in terms of the rotations. The settlements have not occurred continuously under the load, but by steps.
【CateGory Index】: U442.2
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