WP1 | Seismic experiments

Data acquisitions using a dense array of 1000 geophones covering two metamaterial configurations made of a dense collection of vertical resonators/inclusions (forest of trees or buried concrete columns).

Leader: ISTerre, Grenoble

1/ The forest experiment | Year 1 of the project

The first aspect of WP1 is the deployment of a very dense array of three-component geophones at the interface between an open field and a forest. To find out the optimal forest configuration, a collaboration was started with R. DE LARY, Head of the “Centre National de la Propriété Forestière d’Aquitaine” (CNPF) which manages the 1 million hectare of pine tree forests in the Landes department. During a visit of P. ROUX to Bordeaux in 2016, different sites were investigated and two (...)

2/ Seismic cloaking through buried vertical concrete inclusions | Year 3 of the project

By buried vertical concrete inclusions, we refer to the rigid inclusions, also called CMC, constructed by Menard as a ground improvement solution (Plomteux et al, 2003 ; Masse et al, 2009 ; Plomteux and Ciortan, 2010). Developed by Menard initially in France to support structures such as warehouses, industrial buildings, medium weight housings, roads, railways, embankments, and storage tanks, the Controlled Modulus Columns (CMC) are predominantly used for sites with soft cohesive soils, (...)