@misc{10481/66559,
year = {2021},
url = {http://hdl.handle.net/10481/66559},
abstract = {The reactivation of very large landslides may cause severe damage to society. Its prevention
and management requires detailed information on the geometry and structure of these landslides,
but the use of standard techniques (boreholes) may be prohibitive from an economic point of view.
To overcome these difficulties, geophysical techniques are of special interest because they allow for
studying very large areas at a reasonable cost. In this paper, we present a case study wherein the
analysis of ambient noise allowed us to produce a model of a large landslide near Granada (southern
Spain). The geometry and location of the failure zone, as well as the assessment of the state of
involved materials, were estimated by combining two available boreholes and different geophysical
techniques (downhole tests and the spectral analysis of ambient noise, horizontal to vertical spectral
ratios (HVSR) and the frequency-wavenumber (f-k) methods). The results have allowed us to
differentiate between values within the landslide mass with respect to those of stable materials, and
to perform for the first time a comprehensive geological model of this unstable mass. Differences
were also observed within the landslide mass (earth flow vs. slide zones), which are attributed
to differences in the degree of alteration and the disturbance of the internal structure of materials
constituting the landslide mass. These results show that techniques based on the measurement of
ambient noise are of special interest for studying very large, highly remolded landslide masses.},
organization = {EU (FEDER), by the Secretaría de Estado de Investigación,
Desarrollo e Innovación of the Spanish government (projects CGL2015-65602-R and CGL2016-77688-
R)},
organization = {Junta de Andalucía (project GGI3002IDIN)},
organization = {Programa Operativo FEDER Andalucía
2014–2020},
organization = {Research Groups VIGROB-184 and
VIGROB-116 (University of Alicante)},
organization = {University of Jaén},
publisher = {MDPI},
keywords = {Landslide},
keywords = {Geophysical prospecting},
keywords = {Ambient noise},
keywords = {F-k technique},
keywords = {HVSR},
title = {Ambient Noise Measurements to Constrain the Geological Structure of the Güevéjar Landslide (S Spain)},
doi = {10.3390/app11041454},
author = {Soler Llorens, José Luis and Garrido Manrique, Jesús and Sanz de Galdeano, Carlos},
}