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out13.txt
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out13.txt
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VA‘*UI [ %N{«)
CENARM — ENGINEERING HYDROLOGY
Spring, 2017—18
TUTORIAL SHEET 4 6
sls hft‘k and 2 hm wide. Two observation wells located 2 km
hn indieate hy deaulic head of 45 and 39.5 m. IC the coefficient
ifer is 30 m day, calcutate (i) total daily flow through the
1c head at an obscrvation well located at 300 m ffom the
cher was pinsided in a reservoir to act as an outlat. Dae to disuse,
5 up for some length by sediment deposited.
of fine sand (K; ~ 10 miday) depos‘t for a length
umm end and on e I (a= 50 mn‘day) as the downstrcam
cor thase two laers the presence ofsity sund (Ks=0.1
1 ara head diffecence of 20 in on cither side of the
«is found to be 0.8 n Way. Estimate the length of
Ieath is ident
the scets doch
woup saleots ind
\ in lned a
e en hn in unconfined aquifer (K= 50 miday) situated over a
ho onl rpaviue y oz Pow conditions shown in the figure befow., estimate the
dinchurge callected per uent Tongth of the pallery
Ground stice
K s 5 midy
uSm L ——— Infitration gallery
von ermcacacconds
——|
18 m
s wel! operating under steady state in a confined
Values of drawdown at two observation wells
d 0.30 m respectively. Determine the
4.. The disch from a fully penetrating
aquiler of 35 m thickness is 3000 lpm.
12 and 120 m away from the well are 3.0 an
permeability of the aquifer
ic conductivity as 6 m per day located at the top of
ts two parallel water bodies A and B which are
and B, measured above the horizontal
‘iday per m‘ of
5 — An un—confined aquifer with hydrauli
a horizontal aquiclude which contiect
1000 m apart. The water surface elevations of A
aquiclude, are 12.0 m and 9.0 m. Ia uniforn recharge rate 0f 0.003 m
Pofpontal area occurs on the ground surface, estimate the followings:
The potentiometric surface profile.
Te focation and elovation of Water Table.
The seepage discharges into the lakes, .
Thc recharge rate and total seepage flow per unit width of the aquifer.
ac se