gric. What was the pressure in kg/m² (psf and psi) for love the water in the aquifer before entering the well? d. If the piezometric pressure in the aquifer is reduced 4.6 m (15 ft) for every 1.6 km (1 mi) of horizontal distance, what is the hydraulic gradient for the aquifer? e. If the hydraulic conductivity of the sandstone is 4.7 m/day (15.3 ft/day), what is the average velocity of flow through the sandstone?
gric. What was the pressure in kg/m² (psf and psi) for love the water in the aquifer before entering the well? d. If the piezometric pressure in the aquifer is reduced 4.6 m (15 ft) for every 1.6 km (1 mi) of horizontal distance, what is the hydraulic gradient for the aquifer? e. If the hydraulic conductivity of the sandstone is 4.7 m/day (15.3 ft/day), what is the average velocity of flow through the sandstone?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
3c,d,e
Transcribed Image Text:The depth to the water table is
The silt has a capillary fringe 1.5 m (5 ft) thick.
Based on this information, show the subdivisions of
this cross section relative to the subdivisions of sub-
surface water. Draw an appropriate hydrostatic pres-
sure diagram for the cross section in keeping with
Figure 13.2.
•
3. a. If an artesian aquifer is intercepted by a well drilled
36.6 m (120 ft) deep and the water rises in a stand-
pipe to a height of 3 m (10 ft) above the ground
surface, how many meters (feet) of artesian pres-
sure exist for this well?
b. What type of well is it?
gric. What was the pressure in kg/m² (psf and psi) for
alove the water in the aquifer before entering the well?
d. If the piezometric pressure in the aquifer is
reduced 4.6 m (15 ft) for every 1.6 km (1 mi) of
horizontal distance, what is the hydraulic gradient
for the aquifer?
e. If the hydraulic conductivity of the sandstone is 4.7
m/day (15.3 ft/day), what is the average velocity of
flow through the sandstone?
5. Ar
pe
le
ah be
h
6. B
C
7.
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