Abstract
The paper describes experimental findings on stresses and strains in specimens made of an equivalent geo-material and subjected to static compression and multiple weak impacts. Against the background of gradual increase in the total compressional strain, the specimen area adjacent to the impact point is first compressed and then stretches. The temporal variations in strains are non-monotonous but fluctuate relative to the general trend. Weak impacts initiate a slow deformation wave at a rate of 8.8 mm/h in the specimen. The initial compression stress decreases non-monotonously with time, too. There are areas of both rise and drop of the stress. On the whole, the specimen periodically accumulates and releases elastic energy in the course of the whole loading experiment. The aforementioned behavior has the following qualitative explanation. Weak impacts, which act on the background of pre-limited static stress, lead to irreversible micro-strain between structural elements (grains) of the sample. This effect is accumulated in the form of sample macrostrain with time.
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References
Erzhanov, Z.S., Saginov, A.S., Gumenyuk, G.N., et al.: Creep of Rocks. Theory and Practice. Nauka, Alma-Ata (1970) (in Russian)
Svalov, A.M.: Deformation characteristics of rocks in oil and gas reservoir development. Monit. Nauka Tekhnolog. 3(8), 84–90 (2011) (in Russian)
Mokhnachev, M.P.: Fatigue of Rocks. Nauka, Moscow (1979) (in Russian)
Kurlenya, M.V., Adushkin, V.V., Garnov, V.V., et al.: Alternating response of rocks to dynamic impacts. Doklady Akad. Nauk SSSR 323(2), 263–265 (1993) (in Russian)
Trapeznikov, Y.A., Manzhikov, B.T., Bogomolov, L.M.: Effect of small weak vibrations on strain in rocks at constant load. Volcanol. Seism. 22(1), 22–106 (2000)
Kuksenko, V.S., Manzhikov, B.T., Tilegenov, K., et al.: Trigger effect of weak vibrations in solids (rocks). Phys. Solid State 45(12), 2287–2291 (2003)
Kocharyan, G.G., Kulyukin, A.A., Pavlov, D.V.: Role of nonlinear effects in the mechanics of accumulation of small perturbations. Fiz. Mezomekh. 9(1) 5–14 (2006) (in Russian)
Deshcherevskii, A.V., Lukk, A.A., Mirzoev, K.M., Sidorin, A.Y.: Potentiality of trigger effect of daily variations in microseismic vibrations on seismic process. Nauka Tekhnol. Razrab. 94(4) 16–29 (2015) (in Russian)
Stavrogin, A.N., Shirkes, O.A.: Aftereffect in rocks caused by preexisting irreversible deformations. J. Min. Sci. 22(4), 235–244 (1986)
Moroz, A.I.: Self-Stress State of Rocks. MGGU, Moscow (2004) (in Russian)
Lavrikov, S.V., Revuzhenko, A.F.: Modeling deformation processes in self-stressed rock specimens. J. Min. Sci. 53(1), 12–20 (2017)
Kosykh, V.P., Kosykh, P.V.: Fluctuations of stresses in geomaterials during long-term weak dynamic impacts. In: IV All-Russian Conference with International Participation on Trigger Effects in GeoSystems, pp. 176–182. GEOS, Moscow (2017) (in Russian)
Kosykh, V.P., Kosykh, P.V., Revuzhenko, A.F.: Test bench to study complex stress evolution in geomaterials under weak dynamic loads. J. Min. Sci. 53(6), 1147–1151 (2017)
Rzhanitsyn, A.F.: Theory of Creep. Stroyizdat, Moscow (1968) (in Russian)
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This study was carried out in the framework of the Fundamental Scientific Research, state registration no. AAAA-A17-117121140065-7.
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Kosykh, V. (2019). Effect of Multiple Weak Impacts on Evolution of Stresses and Strains in Geo-materials. In: Kocharyan, G., Lyakhov, A. (eds) Trigger Effects in Geosystems. Springer Proceedings in Earth and Environmental Sciences. Springer, Cham. https://doi.org/10.1007/978-3-030-31970-0_11
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DOI: https://doi.org/10.1007/978-3-030-31970-0_11
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