A theoretical framework for calibrating the transversely isotropic elastic rock parameters from UCS tests on cylindrical specimens using circumferential strain measurments

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Abstract

The standard method for determining the set of five independent elastic constants of
transversely isotropic rocks relies on the conduction of at least three UCS tests with directional radial strain measurements on samples with varying isotropy plane orientation. However, in many cases only averaged values for the lateral strains are available from chain extensometer measurements as commonly carried out in rock mechanics laboratories. Such measurement setups disregard the
anisotropic deformational behavior of transversely isotropic rock samples which appears as a result of non-horizontal isotropy plane orientations. A direct utilization of averaged radial strains in the determination of the five independent parameters without further considerations is thus not possible.
In this paper a possible scheme for the inclusion of circumferential strain measurement in the determination of the elastic constants of transversely isotropic rocks based on UCS tests carried out on three samples with varying isotropy plane inclinations is presented
Original languageEnglish
Title of host publicationProceedings of the 15th International ISRM Congress 2023 & 72nd Geomechanics Colloquium
Subtitle of host publicationChallenges in Rock Mechanics and Rock Engineering
EditorsWulf Schubert, Alexander Kluckner
Place of PublicationSalzburg
PublisherAustrian Society for Geomechanics
Pages2478-2483
Number of pages6
ISBN (Electronic)978-3-9503898-3-8
Publication statusPublished - 10 Oct 2023
Event15th ISRM Congress 2023 & 72nd Geomechanics Colloquium - Congress Salzburg, Salzburg, Austria
Duration: 9 Oct 202314 Oct 2023
https://www.isrm2023.com/de/

Conference

Conference15th ISRM Congress 2023 & 72nd Geomechanics Colloquium
Abbreviated titleISRM 2023
Country/TerritoryAustria
CitySalzburg
Period9/10/2314/10/23
Internet address

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