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Evaluation of the strain modulus for a rock mass from mine measurements

  • Rock Mechanics and Rock Pressure
  • Published:
Soviet mining science Aims and scope

Conclusions

  1. 1.

    Experimental-analytical and full-scale studies in areas with dimensions more than 10 m were used to obtain a dependence for determining the strain modulus of a rock mass based on laboratory test data and description of rock mass crack characteristics.

  2. 2.

    In spite of the simple rock mass model used in treating the results (elastic, isotropic, homogeneous), the values of strain modulus obtained from which the dependence was constructed have with a reliability of 0.9 a confidence range up to 30%, which is entirely satisfactory for production purposes [6].

  3. 3.

    Comparison of the results of determining strain modulus for a rock mass provided by Ter-Mikaelyan in zones of hydraulic structure construction showed a qualitative relationship for the dependences obtained. With competent assumption about a reduction in rock mass stability category in the weathered zone in relation to the rock mass stability category at a considerable depth agreement is obtained not only qualitatively but also quantitatively within the limits of 30% error.

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Literature Cited

  1. N. P. Vlokh, S. M. Ushkov, Yu. P. Shupletsov, et al., “Determination of elastic characteristics and initial stress components for rock masses,” in: Rock Fracture Mechanics [in Russian], Ilim, Frunze (1980).

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  2. N. P. Vlokh, A. V. Krutikov, and Yu. P. Shupletsov, “Experimental-analytical study of the SSS of a rock mass in the Sokolov underground mine,” in: Study of Stresses in Rocks [in Russian], IGD SO AN SSSR, Novosibirsk (1985).

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  3. N. P. Vlokh, A. V. Krutikov, and Yu. P. Shupletsov, “Determination of strain modulus for a rock mass in the zone affected by actual mining,” in: Comprehensive Studies of the Physical Properties of Rocks and Processes [in Russian], MGI, Moscow (1980).

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  4. K. L. Ter-Mikaelyan, “Relationship of specific thrust factor and strain modulus for rocks with protod’yakonov strentth factor,” in: Excavated Foundations for Hydraulic Structures, No. 33 [in Russian], Gidroproekt, Moscow (1974).

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  5. Distribution and Correlation Indices for the Physical Properties of Rocks [in Russian], Nedra, Moscow (1981).

  6. V. G. Glushko and S. P. Gavelya, Evaluation of the Stress-Strained State of Rock Masses [in Russian], Nedra, Moscow (1986).

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Authors and Affiliations

  1. Institute of Mining, Ministry of Ferrous Metallurgy of the USSR, Moscow, Russia

    Yu. P. Shupletsov

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  1. Yu. P. Shupletsov
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 1, pp. 28–31, January–February, 1990.

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Shupletsov, Y.P. Evaluation of the strain modulus for a rock mass from mine measurements. Soviet Mining Science 26, 22–24 (1990). https://doi.org/10.1007/BF02499760

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  • DOI: https://doi.org/10.1007/BF02499760

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