Abstract
Geological and structural conditions in the Basin of Mexico coupled with
natural and anthropogenic factors, such as groundwater exploitation,
provokes land subsidence and differential deformation. The study area is
located in to the north of Iztapalapa, a municipality within Mexico City, in
a site called "El Eden" with irregular topography. Where volcanic
sequences overlie the lacustrine deposits of clays and silts and show
displacements by the action of gravity. The displacement zone was delimited
at the top of the slope by the formation of circular tensile fractures with
stair -shaped geometries. At the base of the slope, compressive processes
damaged housing, sidewalks and inclined light poles and trees. A NW-SE
system of fractures was identified in which displacement velocities vary
from a few millimeters to several centimeters per year. Which affects urban
facilities. In this work a conceptual model of deformation is presented that
integrates the geological and mechanical factors leading to landslide and
land subsidence. A geophysical survey leads to evidence of how land
subsidence processes increase the sliding slope.
Citation
ID:
182610
Ref Key:
gonzlez-hernndez2015proceedingsmass