An Assessment of the Osmotic Pressure Effect on the Creep Properties of Silty Mudstone
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The existence of water and osmotic pressure significantly aggravates the rheological behavior of rocks, which greatly affects the long-term stability of rock mass. The triaxial rheological deformation of mudstone under different osmotic pressures was discussed, and a new viscoelastic-plastic rheological constitutive model was proposed. The research shows that the existence of osmotic pressure shortens the time required for the mudstone to reach steady-state creep, reduces the failure-level stress, and makes creep failure occur faster.
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