Calculation method of the stressed-strained state around breakage faces

被引:0
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作者
Kurlenya, M.V. [1 ]
Mirenkov, V.E. [1 ]
Khan, G.N. [1 ]
Shutov, V.A. [1 ]
机构
[1] Inst Gornogo Dela SO RAN, Novosibirsk, Russia
关键词
Algorithms - Boundary element method - Mathematical models - Rock pressure - Simulation - Stress analysis - Stresses;
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摘要
Calculation method of stresses and displacements around random shape breakage faces is suggested. Medium elastic model, which permits for better accounting irreversible effects occurring on some characteristic sliding surfaces is used. An algorithm, which provides for numerical realization of the obtained system of integral equations is given. The algebraic system of equations is solved by the successive relaxation method. Program debugging, designed for determination and calculation of stress and displacement component near strippings, is performed at the SM-4 computer. Possibilities of the method and examples of calculations of all stress and displacement components are considered. Simulation has been performed for openings with different shape of breakage face. Results of calculations give identical final result for any succession of section working, but actual massif reacts differently on such successions. So, resulting from this fact, it is necessary to account this in the process of simulation. The information of massif state together with simulation possibilities will allow to choose optimal succession of mining extraction.
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页码:3 / 9
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