The new bridge connects the two shores of the Cadiz bay opening to Puerto Real. Is the highest in Europe with an elevation of 69m, 3.157m long and 3 lanes. The marine foundations include 120 marine piles of 2.000mm diameter and depths of 45 meters. The excavation method includes a metallic casing driven 7 meters into the bottom of the river followed by soil stabilization with GEO’s synthetic fluids (PolyMud®/G3 System®). All piles were executed from a barge.
The unavailability of fresh water on marine projects for logistic reasons required slurry mixing to be made with salt water on piles away from the Cadiz bay shores. The mixing using salt water was performed either directly on the pile or at the barge inner batching plant. All piles had a column of 7 meters of salt water which had to previously be mixed with the G3 System in order to speed up pile excavation.
It was possible to meet completion deadlines, saving time and reducing costs by increasing the production rates.
With the usage of the stabilization fluids G3 System® it was achieved: