Abstract
A study has been made of the process of pressure relaxation in a liquid-filled tank with impaired leakproofness, which is found in the ground. Assuming that the leak rate is limited by filtration characteristics of the ground surrounding the tank, the authors have constructed a theoretical model representing a linear integral equation. Here, the obtained equation has an exact analytical solution. On the basis of a numerical analysis of this solution, the authors have analyzed the influence of the scale of the damaged portion of tank walls, the permeability of the ground, and also the rheological properties of the liquid on the rate of pressure relaxation (decay) in the tank after its sudden pressure testing.
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