Global Patent Index - EP 0932726 B1

EP 0932726 B1 2000-08-02 - METHOD OF MEASURING MECHANICAL DATA OF A SOIL, AND OF COMPACTING THE SOIL, AND MEASURING OR SOIL-COMPACTION DEVICE

Title (en)

METHOD OF MEASURING MECHANICAL DATA OF A SOIL, AND OF COMPACTING THE SOIL, AND MEASURING OR SOIL-COMPACTION DEVICE

Title (de)

VERFAHREN ZUR MESSUNG MECHANISCHER DATEN EINES BODENS SOWIE ZU DESSEN VERDICHTUNG UND MESS- BZW. BODENVERDICHTUNGSVORRICHTUNG

Title (fr)

PROCEDE POUR MESURER DES GRANDEURS MECANIQUES D'UN SOL ET DE COMPACTAGE DUDIT SOL, ET DISPOSITIF DE MESURE OU DE COMPACTAGE DE SOL

Publication

EP 0932726 B1 (DE)

Application

EP 97943717 A

Priority

  • CH 9700396 W
  • CH 255996 A

Abstract (en)

[origin: WO9817865A1] In this method for achieving optimum, in particular homogeneous, soil compaction, a compaction device (3) acting upon the soil to be compacted, whose oscillations are registered together with those of the soil as a single compaction vibration system by a computing unit (12), is excited by an oscillation-inducing force in such a way that this compaction vibration system oscillates in resonance, or at a frequency ( OMEGA ) that exceeds the resonance value by a specified frequency value that is only determined by adjustment stabilities. The value of the oscillation-inducing force, its periodic frequency ( OMEGA ), and the phase angle ( phi ) to the oscillation of the compaction vibration system are set automatically by the computing unit (12) so that a specified soil rigidity is achieved, taking into account the mass of the compaction device (3) and of the weight pressing on it statically. The compaction device according to the invention can also be used to determine the soil rigidity and/or the soil modulus of elasticity.

IPC 1-7 (main, further and additional classification)

E01C 19/28

IPC 8 full level (invention and additional information)

E01C 19/28 (2006.01)

CPC (invention and additional information)

E01C 19/288 (2013.01)

Designated contracting state (EPC)

AT CH DE FR GB LI SE

EPO simple patent family

WO 9817865 A1 19980430; AT 195157 T 20000815; DE 59702110 D1 20000907; EP 0932726 A1 19990804; EP 0932726 B1 20000802; US 6431790 B1 20020813

INPADOC legal status


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- Effective date: 20000922

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