out8.txt

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CEXA — ENGINEERING HYDROLOGY
Spring, 2017—18
IUTORIAL SHEET 4 6

ch and 2 Km wide. Two observation walls located 2 km
indicate hn deaulic head of 45 and 39.5 . IC the coefficient
us 30 m day. calculate (i) total daily flow through the
ic head at an obscrvation well located at 300 m from the

 

  
 

freun we pos ided in a reservoir o act as an outlet, Due to disuse,
complersiy cloaced un for some length by sediment deposited.
: sand (K; = 10 m/day) deposit for a length

50 aniday) at the downstream
i these two layers the presence of slty sund (K =0.1
111 ar a head ifference of 20 in on cither side of the
«is found to be 0.8 m Wday. Estimate the longth of

 

   
  
 

 

 

   

 

 

lined aquifer (K= 50 miday) situated over a
© ow conditions shown in the figure befow, estimate the
e caliected per un length of the gallery

 

bocroniel rmpers hins he

  
 

 

150 m
Horizontal,impervious bed

 

s well operating under steady state in a confined
Values of drawdown at two observation wells
d 0.30 m respectively. Determine the

The discharge from a fully penetrating
wquiler 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 paraliel water bodies A and B which are
1000 m apart, The water surface elevations of A and B. measured above the horizontal
aquiclude, are 12.0 m and 0.0 m fa uniform recharge rate 0f 0.003 m‘iday per i‘ of
forizontal area occurs on the ground surface, estimate the followings:

An un—confined aquifer with hy drauli
a horizontal aquiclude which connect

   

The porentiometric surface profile.
Te focation and elovation of Water Table.

The seepage discharges into the lakes: .
Thc recharge rate and total seepage fiow per unit width of the aquifer.

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