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The CSIR “doorstopper” and triaxial rock stress measuring instruments

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Summary

The CSIR “Doorstopper” and Triaxial Rock Stress Measuring Instruments

Detailed descriptions of the CSIR “doorstopper” and triaxial rock stress measuring instruments are given, including the procedures involved in making measurements with them.

The derivations of the theoretical formulae which are used to calculate the rock stresses from the strains measured with the instruments are also included in the paper.

Zusammenfassung

Die „CSIR-Türstoppersonde” und die „CSIR-Triaxialsonde” zur Messung der Gebirgsspannungen

Zwei in der CSIR entwickelte Instrumente zur Messung der Gebirgsspannung, nämlich die „CSIR-Türstoppersonde“ und die „CSIR-Triaxialsonde“, werden eingehend beschrieben. Auch wird ihre Anwendung unter Tage erläutert.

Es werden Formeln abgeleitet, mit deren Hilfe die Komponenten der Gebirgsspannung aus den gemessenen Verformungskomponenten errechnet werden.

Résumé

Le “Butoir de porte” et l'appareil triaxial du CSIR pour la mesure des contraintes dans le massif rocheux

Les instruments de mesure de contrainte dans le massif rocheux mis au point par le CSIR, le “butoir de porte”, et l'appareil triaxial, sont décrits en détail ainsi que leur mode d'emploi.

Sont données aussi les formules théoriques utilisées pour calculer les contraintes dans le massif rocheux à partir des déformations mesurées avec ces instruments.

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  1. National Mechanical Engineering, Research Institute, P. O. B. 395, Pretoria, South Africa

    E. R. Leeman

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  1. E. R. Leeman
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Leeman, E.R. The CSIR “doorstopper” and triaxial rock stress measuring instruments. Rock Mechanics 3, 25–50 (1971). https://doi.org/10.1007/BF01243550

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  • DOI: https://doi.org/10.1007/BF01243550

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