This preview shows page 1. Sign up to view the full content.
~~
,/
","
'
~t/~
!

'.:;:
=
II
A homogeneous confined aquifer is tapped by.a fullypenetrating well whose radius is
225 millimeters: The aquifer transmissivity is 8.35xlO4m2/s and the storage coefficient is
0.00065. For the given parameters determine the following:
1
.
1.
Drawdown at 50 meters from the pumping well
~
and 24 hours after the
.
beginningofpumpingwiththerate of 12litersper second(0.012m3/s).
2.
Time after which the drawdown at 30 meters from the pumping well would be 2.5
metersifthe pumpingratewas9 litersper second.
.
3.
Pumping rate needed to produce.1.5meter drawdown at 28 meters from the pumping
wellafter 10daysofpumping.
.
.
.
4.
Distance at 'which the drawdown is 0.85 meters after one week of pumping with the
rate of 5 liters per second.
.
A
r
.
.
5.
The radius of well influence after 5 days and 6 months of pumping with the rate of 15
litersper second.
~.
~
?
"
/
p
ffV\'
f)cK
A.
p'M$ll~
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 04/19/2010 for the course CE 421 taught by Professor Shuguangli during the Spring '05 term at Michigan State University.
 Spring '05
 SHUGUANGLI

Click to edit the document details