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Vol 159 No 1
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Influence of temperature on the stress-strain state of the "pillar-mass" system

M. A. Karasev
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  • Postgraduate student G.V. Plekhanov Saint Petersburg State Mining Institute
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The problem of temperature stress distribution around underground radioactive waste storage facilities is formulated. Blue clays in the Northwest region of Russia were taken as geological formations. The problem is solved by the finite element method. The effect of the temperature factor on the stress-strain state of the "pillar-mass" system was found out. The character of surface rise as a function of temperature in the chamber has been established. The emergence of pronounced tensile zones in the massif caused by temperature stresses has been noted. The character of stress distribution σ x and σ y in the massif and tunnel lining has been analyzed.

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