A New Approach to Mitigate Subsidence Problems: A New Approach to Mitigate Subsidence Problems

by Gabriel Auvinet-Guichard, Ph.D., Professor at the Instituto de Ingeniería, UNAM. His research work deals mainly with foundations in soft soils in seismic zones and on application of probabilistic methods to civil engineering., gauvinetg@iingen.unam.mx,
Felipe Vázquez-Guillén, P.E., Ph.D., Works for the Instituto de Ingeniería, UNAM, collaborating on applied geotechnical engineering projects and conducting research on subjects like coupled hydro-mechanical modeling in geotechnical engineering and hydrogeology, groundwater modeling in aquifer-aquitard systems, and stochastic inverse modeling applied to geotechnical engineering works., fvazquezg@exii.unam.mx,
, G.E.

Serial Information: Geo-Strata —Geo Institute of ASCE, 2019, Vol. 23, Issue 2, Pg. 34-39


Document Type: Feature article

Abstract: Mexico City has a decades-old problem with severe consequences: its lacustrine zone is subsiding due to pumping of potable water from the main aquifer. The geotechnical team assigned to work on the problem assessed the situation by using remote-sensing methods. This article describes the present situation as well as a new approach to mitigate the effects of subsidence. The new approach combines several actions, but consists mainly in progressively modifying the pumping strategy to avoid exceeding the soil preconsolidation pressure in the clayey compressible layers, including the superficial aquitards and in most of the main aquifer.

Subject Headings: Mitigation and remediation | Land subsidence | Soil compression | Soil pressure | Pumps | Consolidated soils | Municipal water | Urban areas | Mexico City | Mexico

 

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