Constanthead test
Assumptions:
üaquifer is
confined, isotropic, of infinite lateral extent;
ütwo calculation
schemes are available: (1) accounting and not accounting for
leakage;
üdrawdown is
estimated in the aquifer at any distance from the pumping
well;
ühydraulic head
in the pumping well is constant during the test period;
üstorage capacity
of the pumping well is included.
a
b
Hydrogeological conceptual schemes for constanthead test
analysis: nonleaky confined aquifer (a); leaky confined aquifer (b
). For leaky aquifer some other positions of aquifers and aquitards can be
considered.
To be analyzed
are:
One well pumped at a constant
drawdown
Pumping
References
Hantush M.S. Nonsteady flow
to flowing wells of leaky aquifers // Journal of Geophysical
Research. 1959. Vol. 64, N 8.
P. 1043–1052.
Hantush M.S. Hydraulics of
wells // Advances in Hydroscience / Edited by
Ven Te Chow. New York; London: Academic Press, 1964.
Vol. 1. P. 281–432.
Sternberg Y.M. Some approximate
solutions of radial flow problems // Journal of Hydrology. 1969.
Vol. 33, N 2. P. 158–166.
