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Experimental determination of the energy expended on elastic and plastic deformation during fragmentation of rocks by blasting

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Soviet mining science Aims and scope

Conclusions

  1. 1.

    An experimental method has been developed for determining the energy expended on various types of deformation during the fragmentation of rocks by blasting.

  2. 2.

    The absolute values of the energy expended on elastic and plastic deformation in the fragmentation of diabase specimens by blasting have been measured experimentally, and the blasting effiency calculated for various blasting conditions.

  3. 3.

    Experimental curves have been measured for the relation between the energy expenditure and the degree of fragmentation of diabase specimens: these curves are nonlinear.

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Literature Cited

  1. M. A. Bol'shanina and V. E. Panin, Potential Energy of Deformation: Investigation on Solid-State Physics [in Russian], Publ. by AN SSSR, Moscow (1957).

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  2. N. A. Rebinder, L. A. Shreiner, and N. F. Zhigach, Methods of Reducing Rock Hardness in Drilling [in Russian], Publ. by AN SSSR (1944).

  3. A. N. Khanukaev and K. A. Dolgov, “On the energy expenditure in the neighborhood of an explosion,” Zap. LGI,2, No. 1 (1966).

  4. Yu. M. Misnik and K. A. Dolgov, “The specific surface energy: a new index of the breakability of a rock, and its applications to calculations of the characteristics of blasting operations,” Fiz.-Tekh. Probl. Razrabotki Polezn. Iskop., No. 2 (1967).

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Authors
  1. Yu. M. Misnik
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  2. K. A. Dolgov
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Additional information

G. V. Plekhanov Mining Institute, Leningrad. Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 87–90, May–June, 1969.

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Misnik, Y.M., Dolgov, K.A. Experimental determination of the energy expended on elastic and plastic deformation during fragmentation of rocks by blasting. Soviet Mining Science 5, 309–311 (1969). https://doi.org/10.1007/BF02501868

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  • DOI: https://doi.org/10.1007/BF02501868

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