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Statements
1982
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stress and displacement states
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ground around deep mining excavations
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stability of equilibrium states of reinforcements
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nonelastic behaviours of surrounding media
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thick-walled reinforcement elements
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Leibenson- Ishlinsky approach
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three-dimensional elastic-plastic continuum
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optimum parameters of reinforcement elements
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single horizontal opening
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straight and curved axis
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single spherical excavation
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nondisturbed ground
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hydrostatic pressure distribution
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thick-walled cylindrical and spherical shells
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non-hydrostatic pressure field
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critical (minimum) pressure
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loss of stability
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horizontal cylindrical and spherical openings
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rising headings
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underground explosions
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relation
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maximum excavation diameter
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minimum allowable pressure
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minimum tickness monolithic thick-walled reinforcement
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minimum size of guard pillars
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rectangular and circular cross-section
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stresses in and around roof bolts
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load carrying capacity
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optimum flexibility
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bi
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