Abstract

Results for the pore pressure induced by a plane strain shear dislocation that starts from rest, moves a finite distance at constant speed and stops demonstrate that coupling between deformation and diffusion causes a complex response even though the spatial distribution of slip is simple. A summary of recent solutions for stationary, instantaneous plane strain shear and opening dislocations and steadily moving shear dislocations demonstrates that coupling between deformation and diffusion is significant for locations near the dislocation edge and for short times. In addition, the response depends strongly on whether the plane of the dislocation is permeable or impermeable. Applications of these solutions to interpret water well level changes caused by aseismic slip (creep) in the Earth’s crust are discussed.

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