Conclusions
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1.
The stress-strain state of the rock in the vicinity of a working must be calculated on the basis of a scheme which takes into account the descending branch of the T-G graph.
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2.
The borehole method enables one to assess by simple means the dependence of the degree of damage of the rock on the distance to the working, and thus to indicate the type of T-G graph.
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Literature Cited
E. I. Shemyakin, “Laws of inelastic deformation of rocks in the vicinity of a development working,” in: Rock Pressure in Main and Development Workings [in Russian], Izd. IGD Sib. Otd. Akad. Nauk SSSR, Novosibirsk (1975).
V. V. Naldzhan and G. N. Gumenyuk, “The character of rock displacements in a development working outside the zone of influence of mining-out work,” in:.
G. G. Litvinskii, “Laws of movement of the brittle fracture front and of formation of the zone of inelastic deformation around a mine working,” in:.
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Translated from Fiziko-Tekhnicheskie Problemy Razrabotki Poleznykh Iskopaemykh, No. 3, pp. 7–12, May–June, 1978.
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Aksenov, V.K., Zhigalkin, V.M., Lindin, G.L. et al. Determination of the stress-strain state of the rock in the vicinity of a working. Soviet Mining Science 14, 241–245 (1978). https://doi.org/10.1007/BF02499319
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DOI: https://doi.org/10.1007/BF02499319