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Título del libro: Advances In Geotechnical Engineering: The Skempton Conference - Proceedings Of A Three Day Conference On Advances In Geotechnical Engineering, Organised By The Institution Of Civil Engineers Título del capítulo: Geotechnical considerations for hardening the subsoil in Mexico City's Metropolitan Cathedral
Underexcavation of Mexico City's Metropolitan Cathedral, which took place between 1993 and 1998, induced corrective deformations that nullified most of the differential settlement that accumulated during the previous 65 years, due to regional subsidence. Upon the end of Underexcavation, the effects of regional subsidence reappeared and some of the corrections gained were lost. In this paper we describe an intervention in which the very soft clayey soils underlying the Cathedral and the adjacent Sagrario Church were hardened selectively by means of injected mortars, as a preventive measure to avoid the accumulation of future differential settlements. Observational data show that the procedure has been successful.
