Dataset Direct Download Service (WFS): DDT 70 — Aleas clay gonlement in Haute-Saône in 2009
Description
Background document updated following the BRGM study report (public document) and positioning of hazard zones in shapefiles format, in 2009. No occurrence — Geological risks.
The phenomenon of dewatering of clay soils during pronounced and/or lasting drought causing deformations of the soil surface (differentiated cutters). It can be followed by swelling phenomena as initial hydrogeological conditions recover or more rarely creep with softening.
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