Injected mortars to reduce the compressibility of the subsoil in Mexico City's Metropolitan Cathedral

摘要

Mexico City's Metropolitan Cathedral and Sagrario Church were successfully underexcavated, from August 1993 to June 1998, in order to reduce differential settlements. Thereafter, from September 1998 to December 2000, setting mortars were injected into the subsoil in order to obtain a more uniform distribution of compressibilities. Correspondingly, future differential settlements induced by regional subsidence will follow a more uniform pattern. This paper presents a brief discussion of the main aspects of the injection project as well as a preliminary appraisal of its results, which are shown to be highly encouraging.