Patent ID: 8057124

Claim:
A method for determining a soil parameter using a soil compaction device that has a contact element charged with vibration for soil compaction, the method comprising: exposing the contact element to a contact force F contact exerted by the soil, while traveling a contact path s contact ; and determining the soil parameter as a dynamic modulus of deformation E V, dyncompaction , as follows: E v r â¢ dyncompaction = Î± Â· Î” â¢ â¢ F contact Î” â¢ â¢ s contact ï¸¸ k dyn Î± being a contact surface parameter for taking into account the actual contact surface of the contact element with the soil; k dyn being the dynamic rigidity of the soil, and being formed as a gradient of the contact force F contact and of the contact path s contact .