Calculation of nonstationary drainage in the case of a finite number of closed horizontal drains

In the hydrodynamic formulation, a study is made of nonstationary drainage in a water-bearing stratum in the presence of a finite number of closed drains and variable infiltration. The drains are simulated by linear sinks with known time-dependent flow rates per unit length of the drains. The dependences found in the paper enable one to predict, and if necessary also regulate the dynamics of the level of ground water in a drained region, which is of practical interest in the study of salinization and swamping of land.Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 4, pp. 165–170, July–August, 1979.