Geotechnical Zoning of Mexico Valley Subsoil

Juárez-Camarena, Moisés; Auvinet-Guichard, Gabriel; Méndez-Sánchez, Edgar

doi:10.1016/j.riit.2016.07.001

Cited by 12 publications

(7 citation statements)

References 1 publication

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“…Water preferably circulates through the strata of greatest permeability and tends to cross where it is less permeable along the shortest track; therefore, in deeper layers under the valley, water tends to circulate through the deep alluvium until it is forced to cross the lake deposits to reach its base level of discharge, basically in the area of the Texcoco Plains (Figure 15). The upper aquitard, composed of very porous low-permeable lacustrine deposits, contains large amounts of groundwater in storage [34,52,53]. At the regional level, it provides very important volumes of water to adjacent aquifers, naturally or under the effects of pumping, which is considered an indirect recharge to the aquifer [54].…”

Section: Natural Recharge and Discharge Conditionsmentioning

confidence: 99%

A Unified Hydrogeological Conceptual Model of the Mexico Basin Aquifer after a Century of Groundwater Exploitation

Nava

Rivera

Paredes

2022

Water

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The Mexico City Metropolitan Area, located within the Mexico Basin, is the most important economic center in Mexico. An ever-growing population, currently at 22 million with increasing water demands, has resulted in the overexploitation of groundwater with associated impacts to hydrological conditions for a century. Land subsidence due to chronic groundwater level declines has damaged infrastructure and increased water delivery and flood control challenges, causing loss of aquifer storage. An additional associated problem is groundwater quality deterioration, which reduces potable supplies due to increasing anthropogenic pollution and salinization. A new integrated conceptual model of the Mexico Basin Aquifer has been constructed based on a comprehensive compilation of existing and new hydrogeological knowledge. As a result, this conceptual model updates and improves the understanding of the characteristics of the aquifer and current hydrodynamic behavior of groundwater. Four hydrogeological units were identified, their heads and related flow system interdependencies were evaluated and their hydraulic properties associated; this allowed identifying local, intermediate and regional flow systems, aquifer transition from confined to unconfined conditions, changes to land subsidence and groundwater quality deterioration. This conceptual model could be the basis in building a numerical model, and as a powerful tool to test different management scenarios for decision-making.

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Section: Natural Recharge and Discharge Conditionsmentioning

confidence: 99%

A Unified Hydrogeological Conceptual Model of the Mexico Basin Aquifer after a Century of Groundwater Exploitation

Nava

Rivera

Paredes

2022

Water

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“…Soils can be classified according to their different properties in a way that they have the same engineering properties. Particle-Size analysis is based on particle size and percentage of grains in the soil mass and is the simplest soil test [5,8,9]. Mechanical Particle-Size analysis is vibrating soil samples on a series of sieve that their size decreases respectively from top to bottom.…”

Section: )mentioning

confidence: 99%

“…Mechanical Particle-Size analysis is vibrating soil samples on a series of sieve that their size decreases respectively from top to bottom. This test is used for soils that their particle diameter is larger than 0/075 mm [5,8,9].…”

Section: )mentioning

confidence: 99%

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Geotechnical Characterization of Soils in the Eastern and Western Areas of Tehran

Razmyar

Eslami

2017

Eng. Technol. Appl. Sci. Res.

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Tehran is placed in a high seismic risk zone with specific natural hazards. The resources to deal effectively with a possible crisis are limited, so proper preparation is a necessity. Therefore, the identification of geotechnical design building features based on local and environmental conditions plays a fundamental role in improving the construction quality. Thus, given the increase of population in Tehran, the concentration in certain areas and the need to better identify soil characteristic for safer construction in these areas, a zoning study is performed in this study. The results showed that soils in regions 4 and 22 belong to B Tehran formation and are coarse. Because the soil is coarse-grained in these areas, earthquake liquefaction is not expected. Given the shear wave velocity in the 4 and 22 areas, the soil mass is characterized as dense or too dense.

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“…1. An updated 3D model of the valley with variable thickness of the clay deposits based on the contour map presented by Juárez-Camarena et al (2016);…”

Section: Introductionmentioning

confidence: 99%

Three-dimensional numerical modeling of ground motion in the Valley of Mexico: A case study from the Mw3.2 earthquake of July 17, 2019

Hernández-Aguirre,

Paolucci,

Sánchez-Sesma

et al. 2023

Earthquake Spectra

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In this study, a 3D physics-based numerical approach, based on the spectral element numerical code SPEED, is used to simulate seismic wave propagation due to a local earthquake in the Mexico City area. The availability of detailed geological, geophysical, geotechnical, and seismological data allowed for the creation of a large-scale (60 km × 60 km in plan, 10 km in depth) heterogeneous 3D numerical model of the Mexico City area, dimensioned to accurately propagate frequencies up to about 1.3 Hz. The results of numerical simulations are validated against the ground motion recordings of the July 17, 2019, Mw3.2 earthquake, with peak ground acceleration exceeding 0.3 g about 1 km away from the epicenter. A good agreement with records is found, quantitatively evaluated through goodness-of-fit checks. Furthermore, for the lake zone, the simulated decay trend of the peak ground velocity with epicentral distance is reasonably close to the observations, for both horizontal and vertical components. In spite of some limitations, the simulations are successful to provide a realistic picture of seismic wave propagation both in the hill and in the lake zones of Mexico City, including the onset of long-duration quasi-monochromatic ground motion in the basin, with strong amplification at low frequencies (between 0.4 and 0.7 Hz). The numerical results also suggest that surface waves, with predominant prograde particle motion at the ground surface and large ellipticities, dominate the wavefield in the lake zone. Based on these positive outcomes, we conclude that this numerical model may be useful for both a better insight into the seismic response of the Valley of Mexico and the simulation of ground motions during larger-magnitude earthquakes, to generate improved seismic damage scenarios in Mexico City.

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Geotechnical Zoning of Mexico Valley Subsoil

Cited by 12 publications

References 1 publication

A Unified Hydrogeological Conceptual Model of the Mexico Basin Aquifer after a Century of Groundwater Exploitation

A Unified Hydrogeological Conceptual Model of the Mexico Basin Aquifer after a Century of Groundwater Exploitation

Geotechnical Characterization of Soils in the Eastern and Western Areas of Tehran

Three-dimensional numerical modeling of ground motion in the Valley of Mexico: A case study from the Mw3.2 earthquake of July 17, 2019

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