📋 Tender Overview
Adif has approved the awarding of the consulting and technical assistance contract for the control of the expansion works of the underpass under the railway on Nicols Soria street next to the Oviedo railway station.The contract necessary for the start of work has been awarded to the joint venture formed by BAC Engineering Consultancy Group and Integra Engineering for an amount of 474583.80 VAT included.The work will consist of the provision of assistance and consulting services for the execution of the necessary technical and financial support to the construction manager in the monitoring and control of the correct execution of the planned tasks.Detail of the worksThe action on the Nicols Soria street bridge will improve the permeability of the city of Oviedo both at pedestrian and road traffic levels and will facilitate the urban connection to both sides of the railway line.The works will consist in the duplication of the current bridge structure so that it can accommodate five lanes of traffic circulation instead of the current three lanes keeping the pedestrian sidewalks on both sides.The final solution will improve the circulatory capacity of Nicols Soria street by redirecting the traffic rolled by two carriageways one for each direction of circulation. The contract will be executed by Copcisa with a budget of 2994583.88 euros VAT included.Drawer pushedThe extension of the underpass will be carried out by means of a reinforced concrete frame which will be placed in its final position using the pushed box technique. The new box will have a free span width of 9.80 m a vertical clearance of 7 m and a total length of 36.15 m.The technical solutions have been designed with the objective of affecting traffic and the existing structure as little as possible being compatible with the maintenance at all times of the railway service. The main tasks included in the action are- Prefabrication of the box in two modules of equal length.It includes a prefabrication pit to be carried out using reinforced concrete pile screens the construction of auxiliary push elements and the replacement of the affected services during prefabrication.- Push the drawer to its final position under the beach of tracks.Initially the first module will be pushed. Then the second module will be moved to the front attack position and the two modules will be pushed to their final position. It also includes the replacement of the affected wiring and railway facilities the removal of the catenary gantry and theplacement of a temporary gantry and semi-gantry outside the affected area.Likewise the execution of new elements of the railway platform will be carried out ballast-guard walls railings lateral closings of the box and the batting leveling and dynamic stabilization of the tracks to leave them in the same conditions as before starting the works. The load test will also be carried out.- Urbanization of the affected area.After the civil work the adaptation of the intersections of Santander Avenue c General Elorza and c Pepe Cosmen will be carried out as well as the adaptation of the roadway under the existing underpass recreating the current sidewalk and adapting the drainage and the installation of lighting traffic lights and other urban elements.
