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- W2352408441 abstract "Testing study is made on sandstone under two types of triaxial compression experiments with rock mechanic system MTS815.Based on the Mohr-Coulomb criterion,under the condition of non-pore water pressure and different confining pressures,the influence of confining pressure on the parameters such as peak failure strength σ 1max,axial strain e 1max,shear strength τ and normal stress σ is analyzed;under the condition of pore pressure and constant confining pressure,the influence of pore water pressure P on the parameters such as peak failure strength σ 1maxand the corresponding axial strain e 1max,effective peak intensity σ 1'm ax,effective confining pressure σ 3',effective shear strength τ'and effective normal stress σ' is analyzed.The following conclusions are drawn:(1) Under the condition of pore water pressure,with the increase of the effective confining pressure,the effective peak failure strength σ 1'max increases.Under the same confining pressure,however,with the increase of the pore water pressure,the effective peak failure strength σ 1' maxreduces.(2) Under either the condition of non-pore water pressure or pore water pressure,both unary quadratic equation and linear equation are fit for the stress-strain relationship;and the corresponding intensity curve is in good agreement with the Mohr-Coulomb criterion.(3) The effective shear strength reduction factor can well demonstrate the influence of the pore water pressure on the effective shear strength." @default.
- W2352408441 created "2016-06-24" @default.
- W2352408441 creator A5046203657 @default.
- W2352408441 date "2010-01-01" @default.
- W2352408441 modified "2023-09-24" @default.
- W2352408441 title "EXPERIMENTAL STUDY OF MECHANICAL PROPERTY OF SANDSTONE UNDER PORE WATER PRESSURE AND CONFINING PRESSURE" @default.
- W2352408441 hasPublicationYear "2010" @default.
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