V.L.Polyakov Mechanical suffosion in soil under drainage |
Applied hydromechanics, Vol. 4 (76) ¹ 4, (2002) |
| Filtration deformations in two-fraction cohesionless soil due to solid particles transport are considered.The mass transfer is initiated by drainage acting under different conditions. An equation for the velocity of ground-water is deduced when the content of solid phase is changing. An exact solution to the transient problem is obtained at the constant drainage discharge and existence of two distinctive zones is established in the deformation domain.In the case of variable drainage discharge a great number of computations are performed coming from a numerical solution to the characteristic system. A detailed analysis is conducted of the changes in physical and mechanical values. On the basis of the Cozeny-Carman formula modified a relative increase in hydraulic conductivity owing to solid particles re-distribution is evaluated. |
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| TEXT LANGUAGE: Russian |