ABSTRACT
The bridge over Guadalquivir river, near Alcalá del Rio in Seville (Spain), that has nine spans of https://www.w3.org/1998/Math/MathML"> 30 m https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429227196/8b5c0a5d-ddea-4c88-8eea-7152f7afb008/content/eq9749.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> each, with a total length of 270 m, has suffer in the nineties a sinking of https://www.w3.org/1998/Math/MathML"> 14 c m https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429227196/8b5c0a5d-ddea-4c88-8eea-7152f7afb008/content/eq9750.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> and https://www.w3.org/1998/Math/MathML"> 6 c m https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429227196/8b5c0a5d-ddea-4c88-8eea-7152f7afb008/content/eq9751.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> on two of the central piers located in the centre of the river. The superstructure is isostatic and the foundation is constituted by two circular pier-piles of https://www.w3.org/1998/Math/MathML"> 1.50 m https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429227196/8b5c0a5d-ddea-4c88-8eea-7152f7afb008/content/eq9752.tif" xmlns:xlink="https://www.w3.org/1999/xlink"/> of diameter. Among different solutions the best technically and economically selected, was to use Jet Grouting injections
