Chamber of valves in the Arenoso reservoir

Of the south of Spain, near the province of Cordova, in a tributary of the Guadalquivir River it has been constructed during the years 2004 to 2007 the reservoir called El Arenoso. El Arenoso reservoir that belongs to Environment Ministry is destined to downstream Guadalquivir’s water supply and the general regulation of the river. The dam is located on the same name river and it is next to the Montoro’s municipal district, 41 km northeast of Cordova. The main work consists on an embankment dam, with central clay core, and slates and greywacke shoulders. The core is covered downstream with a filter material and upstream with a transition material. The dimensions of the dam are 80 m high, 1.480 m long at its crest, and it has been needed more than 3 million m3 of materials, creating a waterproof barrier able to keep 160 hm3 as a useful reservoir. In the zone of the core is located the chamber of valves with a horizontal clearance of 10 m and a vertical clearance of 14,517 m. The present article exposes the most important characteristics of project and construction, of valves chamber of the Arenoso reservoir.

Bridge for the airbus A-380 in Barajas airport (Spain)

During the years 2004 and 2005 is has been constructed in Barajas airport of Madrid a special bridge for the new plane AIRBUS A380. This new airplane has a weight of 1,500,000 pounds and 18 wheels with a reaction of 39.2 tonnes per each one and the braking force is about 600 tonnes. The enormous loads transmitted for the airplane made this bridge a special structure. The present article exposes the most important characteristics of project and construction, of one of the special bridges in the airport Brajas of Madri. This bridge was constructed for the access to the hangar of airplanes in Barajas, known "La Muñoza". The structure has a width of 48m, two spans of 13 m each one and a vertical clearance of 5.50 m to allow passing vehicles under it, along thhe new motorway in Brajas (Madrid).