TY - GEN
T1 - Dynamic Numerical Analysis of the Mazar Concrete Faced Rockfill Dam in Ecuador – South America
AU - Velez, D.
AU - Romanel, C.
N1 - Publisher Copyright:
© 2021, The Author(s), under exclusive license to Springer Nature Switzerland AG.
PY - 2021
Y1 - 2021
N2 - The catastrophic effects of earthquakes that frequently hit the West coast of South America has motivated this research. The country of Ecuador, situated on the subduction border of the South American and Nazca tectonic plates, has a high seismic exposure. Since the Mw = 7.8 earthquake that occurred on April 16th, 2016, the assessment of stability conditions of dams has become a high priority for the Ecuadorian government. The concrete faced rockfill dam (CFRD) of Mazar, an essential structure for the country, is classified as a large dam by the International Commission on Large Dams (ICOLD). In this research, the numerical seismic analysis of Mazar dam was carried out, including the generation of artificial earthquakes based on acceleration spectra established by Ecuadorian standards. Other aspects related to the dam behavior were also investigated, such as the static and pseudo static stability conditions and the maximum permanent displacements determined by simplified methods. An important conclusion from the 2D numerical analysis is the influence of topographic amplification, which is not taken into account when simplified methods based on 1D wave propagation are used.
AB - The catastrophic effects of earthquakes that frequently hit the West coast of South America has motivated this research. The country of Ecuador, situated on the subduction border of the South American and Nazca tectonic plates, has a high seismic exposure. Since the Mw = 7.8 earthquake that occurred on April 16th, 2016, the assessment of stability conditions of dams has become a high priority for the Ecuadorian government. The concrete faced rockfill dam (CFRD) of Mazar, an essential structure for the country, is classified as a large dam by the International Commission on Large Dams (ICOLD). In this research, the numerical seismic analysis of Mazar dam was carried out, including the generation of artificial earthquakes based on acceleration spectra established by Ecuadorian standards. Other aspects related to the dam behavior were also investigated, such as the static and pseudo static stability conditions and the maximum permanent displacements determined by simplified methods. An important conclusion from the 2D numerical analysis is the influence of topographic amplification, which is not taken into account when simplified methods based on 1D wave propagation are used.
KW - CFRD mazar ecuador
KW - Earthquake
KW - Rockfill dam
UR - https://www.scopus.com/pages/publications/85101587387
U2 - 10.1007/978-3-030-64518-2_84
DO - 10.1007/978-3-030-64518-2_84
M3 - Contribución a la conferencia
AN - SCOPUS:85101587387
SN - 9783030645175
T3 - Lecture Notes in Civil Engineering
SP - 710
EP - 717
BT - Challenges and Innovations in Geomechanics - Proceedings of the 16th International Conference of IACMAG - Volume 2
A2 - Barla, Marco
A2 - Di Donna, Alice
A2 - Sterpi, Donatella
PB - Springer Science and Business Media Deutschland GmbH
T2 - 16th International Conference of the International Association for Computer Methods and Advances in Geomechanics, IACMAG 2021
Y2 - 5 May 2021 through 8 May 2021
ER -