Poroviscoelastic analysis of borehole and cylinder problems. (English) Zbl 0881.73108
This paper addresses the phenomena of mechanical creep and deformation in rock formations, coupled with the hydraulic effects of fluid flow. The theory is based on Biot’s poroelasticity, generalized to encompass viscoelastic effects through the correspondence principle. Based on the resultant poroviscoelastic theory, stress and deformation analyses are performed. The interactions between the fluid pore pressure diffusion and the elastic/viscoelastic rock matrix deformation are illustrated via two examples.
MSC:
| 74L10 | Soil and rock mechanics |
| 74D99 | Materials of strain-rate type and history type, other materials with memory (including elastic materials with viscous damping, various viscoelastic materials) |
| 86A05 | Hydrology, hydrography, oceanography |
Keywords:
mechanical creep; hydraulic effects; Biot’s poroelasticity; fluid pore pressure diffusion; elastic/viscoelastic rock matrix deformationReferences:
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