Soil characterization in urban areas of the Bajo Segura Basin (Southeast Spain) using H/V, F–K and ESAC methods

Rosa-Cintas, S.; Galiana-Merino, Juan José; Molina, Sergio; Rosa-Herranz, Julio; Garcı́a-Fernández, Mariano; Jiménez, M. J.

doi:10.1016/j.jappgeo.2011.07.019

Cited by 24 publications

(23 citation statements)

References 44 publications

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“…The model obtained has been preliminary validated through the available direct observations of the subsurface materials from borehole data and locally by the results on V S profiles based on ambient noise array measurements at three specific sites (Rosa-Cintas et al 2011). Still the model derived is affected by the trade-off between thickness and shear-wave velocity of the subsurface layers which cannot be resolved at present.…”

Section: Discussionmentioning

confidence: 99%

“…1) with 612 SPT, four CPTU and one 20 m deep down-hole, as in-situ tests; together with grain size distribution (332) and Atterberg limits (413) as the most abundant among the laboratory tests. Recently, Rosa-Cintas et al (2011) obtained velocity profiles of shear-waves, V S , from ambient-noise surveys, using circular arrays at three sites in the Vega Baja, which have complemented the available data.…”

Section: Geological Setting and Geotechnical Datamentioning

confidence: 99%

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Site characterization in the Vega Baja, SE Spain, using ambient-noise H/V analysis

Garcı́a-Fernández

Jiménez

2012

Bull Earthquake Eng

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New available geological, geotechnical, and geophysical data and new acquired ambient-noise surveys allowed for a detailed characterization of the soils in the Vega Baja region, located in the Lower Segura River basin, SE of the Iberian Peninsula. Single-station measurements were carried out at 90 sites, mainly over the central area of the basin, checking reproducibility by repeating some measurements under different conditions, on different dates, and through different acquisition systems, following well established standard procedures. The detailed data processing and analysis of the new acquired ambient-noise records provided the identification of multiple peaks in some of the horizontal-to-vertical spectral ratio curves, representing different impedance contrasts at depth that were 1D modelled to characterize the Vega Baja soils in terms of resonant frequencies, average shear-wave velocity, thickness of the different soil units, depth to the engineering bedrock and depth to the rock units when the model includes it. The depth to the engineering bedrock is around 30 m in the central part of the region, reaching maximum values of about 50 m in the north and to the east. Maximum values of the shear-wave velocity averaged over the soil units are close to 200 m/s while that averaged in the top 30 m reach values around 300 m/s south of the river bank. Contour mapping and cross-sections of the obtained model parameters illustrate the soil characteristics over the region, providing relevant information for the generation of representative sets of seismic hazard scenarios at different probability levels in future studies for their application in risk mitigation and emergency planning in the Vega Baja.

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Section: Discussionmentioning

confidence: 99%

Section: Geological Setting and Geotechnical Datamentioning

confidence: 99%

Site characterization in the Vega Baja, SE Spain, using ambient-noise H/V analysis

Garcı́a-Fernández

Jiménez

2012

Bull Earthquake Eng

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“…Mundepi et al, 2010;Rosa-Cintas et al, 2011). In other cases, there is not possible to set up the desired array layout because of the lack of stations.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

“…This area constitutes a well-known place studied in previous works (Rosa-Cintas et al, 2011, 2012a, 2012b.…”

Section: Data Acquisitionmentioning

confidence: 99%

Optimizing the number of stations in arrays measurements: Experimental outcomes for different array geometries and the f–k method

Rosa-Cintas¹,

Galiana-Merino²,

Alfaro³

et al. 2014

Journal of Applied Geophysics

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“…These materials can notably increase the ground shaking amplitude and the strong motion duration, increasing the severity of the caused damages (e.g. D' Amico et al, 2008;Mundepi et al, 2010;Rosa-Cintas et al, 2011Souriau et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Shear wave velocity estimation in the metropolitan area of Málaga (S Spain)

Clavero

Rosa-Cintas

López-Casado

et al. 2014

Journal of Applied Geophysics

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Soil characterization in urban areas of the Bajo Segura Basin (Southeast Spain) using H/V, F–K and ESAC methods

Cited by 24 publications

References 44 publications

Site characterization in the Vega Baja, SE Spain, using ambient-noise H/V analysis

Site characterization in the Vega Baja, SE Spain, using ambient-noise H/V analysis

Optimizing the number of stations in arrays measurements: Experimental outcomes for different array geometries and the f–k method

Shear wave velocity estimation in the metropolitan area of Málaga (S Spain)

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