37º IAHS World Congress on Housing: - Universidad de Cantabria

XXXVII <strong>IAHS</strong><strong>World</strong> <strong>Congress</strong> on HousingOctober 26 – 29, 2010, Santander, SpainCODE: 910THE REINFORCED FOUNDATIONS AND THE NEWCELLARS BELOW THE HISTORIC BUILDINGSGómez-Hermoso, JesúsDepartment of Madrid Building IIFCC Construcción, S. A.e-mail: jgomezh@fcc.comKey words: historic building, brick wall, deep foundation, jet grouting, pile, micro-pileAbstractThis paper develops the analysis, the project and the construction of two ancient buildings:The National Ballet Headquarter and the Buen Retiro Palace. First was built at the beginningof 20 th century and second was built at the 18 th century.The Buen Retiro Palace had half cellar, ground floor, two usual floor and the roof. The objectof actuation was to complete the cellar situated immediately under ground floor and to buildother cellar below it. The method that it was used was to make micro-pile under the brickwall, to join both (micro-pile and wall), to excavate two floor, to reinforce the micro-pile withconcrete and to complete the pavement and the new light wall. In different areas it wasnecessary to use different methods that will describe in the paper.The National Ballet Headquarter had others problems. It was a building that was used likecowshed from its construction to 70´s years. It was without use for 20 years and after it wasrebuilt to this function. It was divided in 19 equal spaces separated with brick wall. To restorethe building it was necessary to fix important fissures in the walls and to consolidate thefoundation with jet grouting and micro-pile methods.This paper will describe how we can use both methods (jet grouting and micro-pile), to createnew cellars below the building and to reinforced the foundation without important buildingmovements and controlling them.37º <strong>IAHS</strong> <strong>World</strong> <strong>Congress</strong> On Housing Science 292