title: Very intense pulse in the groundwater flow in fissurized-porous stratum.
abstract: An asymptotic solution is obtained corresponding to a very intense pulse: a sudden strong increase and fast subsequent decrease of the water level at the boundary of semi-infinite fissurized-porous stratum. This flow is of practical interest: it gives a model of a groundwater flow after a high water period or after a failure of a dam around a collector of liquid waste. It is demonstrated that the fissures have a dramatic influence on the groundwater flow, increasing the penetration depth and speed of fluid penetration into the stratum. A characteristic property of the flow in fissurized-porous stratum is the rapid breakthrough of the fluid at the first stage deeply into the stratum via a system of cracks, feeding of porous blocks by the fluid in cracks, and at a later stage feeding of advancing fluid flow in fissures by the fluid, accumulated in porous blocks.
authors.affiliation: Department of Mathematics, University of California at Berkeley, and Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
authors.forename: G I
authors.initials: GI
authors.lastname: Barenblatt
authors.forename: E A
authors.initials: EA
authors.lastname: Ingerman
authors.forename: H
authors.initials: H
authors.lastname: Shvets
authors.forename: J L
authors.initials: JL
authors.lastname: Vázquez