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- W2378489131 abstract "The Drucker-Prager strength criterion for rock is relatively conservative and obviously deviates from reality.In this paper the modification of this criterion is studied.Firstly,the existing statistical damage softening constitutive model for rock is modified according to the relationship between model parameters and confining pressure.On this basis,the Drucker-Prager criterion is modified by using the method for calculating the extremity of pluralistic function according to the extremity characteristics of rock deformation softening curve.The modified criterion comprehensively reflects the effects of volume stress,shear stress and major stress on rock strength.The calculation result by using this modified criterion well agrees with experimental data." @default.
- W2378489131 created "2016-06-24" @default.
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- W2378489131 date "2004-01-01" @default.
- W2378489131 modified "2023-09-23" @default.
- W2378489131 title "Modified Drucker-Prager strength criterion based on statistical damage theory for rock" @default.
- W2378489131 hasPublicationYear "2004" @default.
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