Skip to Main content Skip to Navigation
New interface
Conference papers

Seismic hazard assessment in Menton, France: Topographical site effect zoning considering a semi-empirical approach and a Machine Learning scheme

Abstract : The presence of topography influences the seismic ground motion and may result in strong amplifications, generally at the top of hills and reliefs. The increasing urbanization of hills requires an accurate estimation of these effects even in areas of moderate seismicity. The simplified coefficients provided by the Eurocodes8 do not depend on the frequency and underestimate the amplification in many situations, which justifies the development of new methods based on easily accessible data. The city of Menton, located in the southeast of France, between the Alps and the Ligurian basin, is one of the most exposed metropolitan cities. We propose a study of topographic effects applied to the Menton area. Topographic amplification is calculated, on a wide frequency band, using the Frequency-Scaled Curvature method, from a DEM and an average value of the shear wave velocity. We then propose to apply an automatic clustering approach to classify the amplification curves into five groups with similar properties. We then deduce a first microzonation map of the topographic effects in the Menton area.
Document type :
Conference papers
Complete list of metadata

https://hal-univ-eiffel.archives-ouvertes.fr/hal-03777480
Contributor : Mathieu ALLIMANT Connect in order to contact the contributor
Submitted on : Wednesday, September 14, 2022 - 5:03:39 PM
Last modification on : Wednesday, September 21, 2022 - 7:59:17 AM

File

Allimant_etal_3ECEES_ECS-Sessi...
Files produced by the author(s)

Identifiers

  • HAL Id : hal-03777480, version 1
  • ARXIV : 2209.07781

Citation

Mathieu Allimant, Etienne Bertrand, Nathalie Glinsky, Celine Bourdeau. Seismic hazard assessment in Menton, France: Topographical site effect zoning considering a semi-empirical approach and a Machine Learning scheme. Third European Conference on Earthquake Engineering and Seismology - 3ECEES, editors: Cristian Arion, Alexandra Scupin, Alexandru Ţigănescu, Sep 2022, Bucarest, Romania. pp.(4775-4784). ⟨hal-03777480⟩

Share

Metrics

Record views

35

Files downloads

4