| 摘要 |
The present invention refers to a method for determining the rigidity of a geological layer in terms of propagation velocity of the elastic waves within a geological system delimited by a free surface (2) and comprising at least one first geological layer (6) having a first rigidity and a second geological layer (5) having a second rigidity and being arranged below the first geological layer, said first and second layer being separated from each other by an interface (3), the method comprising the steps of: positioning a source (4) suitable to generate seismic waves in the second geological layer (5), whose rigidity is intended to be measured; activating said source of seismic waves; detecting at least one seismic signal by means of at least one sensor arranged coupling with the free surface, and determining - from at least one seismic signal - a shear velocity of the elastic waves in the second layer and thus indicating the rigidity of the second layer. In a further aspect, the present invention refers to a system for determining the rigidity of a geological layer.
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