Vibration prognosis

Vibration predictions for pile-driving activities or the vibration of sheet pile walls into the soil are drawn up using the cone resistance in the CPT as a measure together with the pile diameter. This gives a good insight into the risks for the surrounding constructions  and the feasibility of driven piles and sheet piles in a preliminary stage where the pile system has to be chosen.

The expected vibrations are tested against the maximum values laid down in the SBR (Foundation Construction Research) guideline A “Damage to buildings through vibrations”.  Starting point is the execution of indicative and/or extensive vibration measurements and an acceptable (small, 1%) risk of damage.

The measures which should be taken if the vibrations are not in compliance with this guideline are communicated with the client so that appropriate solutions may be chosen such as additional measures or a change of the foundation system.