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Apparatus to determine static and dynamic elastic moduli

Howarth, D. F.

Conclusions The apparatus makes it possible to concurrently measureES andED of cylindrical rock specimens under triaxial conditions in theNX Hoek cell.Accuracy of the apparatus is comparable to usual dynamic modulus testing.Preliminary test results for one particular rock type, show that under triaxial conditions the differences betweenED andES are smaller at high confining pressures than at low confining pressures. Circumstantial evidence suggests that microcracks and microfissures are responsible for this phenomenon. Further work needs to be undertaken in other rock types to substantiate these preliminary findings.

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Apparatus to determine static and dynamic elastic moduli

Howarth, D. F.

Conclusions The apparatus makes it possible to concurrently measureES andED of cylindrical rock specimens under triaxial conditions in theNX Hoek cell.Accuracy of the apparatus is comparable to usual dynamic modulus testing.Preliminary test results for one particular rock type, show that under triaxial conditions the differences betweenED andES are smaller at high confining pressures than at low confining pressures. Circumstantial evidence suggests that microcracks and microfissures are responsible for this phenomenon. Further work needs to be undertaken in other rock types to substantiate these preliminary findings.

Apparatus to determine static and dynamic elastic moduli

Howarth, D. F.

Conclusions The apparatus makes it possible to concurrently measureES andED of cylindrical rock specimens under triaxial conditions in theNX Hoek cell.Accuracy of the apparatus is comparable to usual dynamic modulus testing.Preliminary test results for one particular rock type, show that under triaxial conditions the differences betweenED andES are smaller at high confining pressures than at low confining pressures. Circumstantial evidence suggests that microcracks and microfissures are responsible for this phenomenon. Further work needs to be undertaken in other rock types to substantiate these preliminary findings.

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Titel:

Apparatus to determine static and dynamic elastic moduli

Beteiligte:

Howarth, D. F. (Autor:in)

Erschienen in:

Rock Mechanics and Rock Engineering ; 17

Erscheinungsdatum:

1984

ISSN:

DOI:

https://doi.org/10.1007/BF01032338

Medientyp:

Aufsatz (Zeitschrift)

Format:

Print

Sprache:

Englisch

Schlagwörter:

Zeitschrift , Gebirgsmechanik

Klassifikation:

Lokalklassifikation TIB: 560/4815/6545
BKL: 38.58 Geomechanik / 56.20 Ingenieurgeologie, Bodenmechanik

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