Aquifer of infinite extent and thickness
Assumptions:
üaquifer is
confined, anisotropic on the vertical plane, of infinite extent and
thickness;
üdrawdown can be
estimated in an observation well or in a piezometer at any distance
from the pumping well.
a
b
c
Linear source in a confined aquifer of infinite extent and
thickness.
a – 3D view; b – crosssection showing observation well; c –
crosssection showing piezometer.
Fundamental equations:
Average drawdown in an observation well:
Drawdown in a piezometer:
To be analyzed
are:
One well pumped at a constant
rate
Pumping
Recovery
One or several wells pumped at a
variable rate
Pumping
References
Бабушкин В.Д. Определение
водопроницаемости анизотропных пород методом опытных откачек //
Разведка и охрана недр. 1954. № 6. С. 50–53.
Гиринский Н.К. Определение
коэффициента фильтрации по данным откачек при неустановившихся
дебите и понижениях. М.: Госгеолиздат, 1950.
Мироненко В.А.,
Шестаков В.М. Теория и методы
интерпретации опытнофильтрационных работ. М.: Недра,
1978.
Hantush M.S. Aquifer tests on
partially penetrating wells // Journal of the Hydraulics Division.
Proceedings of the American Society of Civil Engineers. 1961.
Vol. 87, N HY5, P. 171–195.
Hantush M.S. Drawdown around
a partially penetrating well // Journal of the Hydraulics Division.
Proceedings of the American Society of Civil Engineers. 1961.
Vol. 87, N HY4. P. 83–98.
