The cross section through a concrete dam spillway, including a cut-off sheet pile wall, is given (next page). (A) Determine the uplift pressures induced by the water flow against the base of the spillway at all points 1 through 5. This is a much larger structure than the one given your notes. In the present exercise, the scale goes from 0 to 30 m. (Include all pertinent calculations and report your rcsults in the same organized, tabular fashion as illustrated in your class notes.) (B) Dcterminc the net pressurcs acting on the cut-off wall at all points 5 through 8. (Include all pertinent calculations and report your results in the same organized, tabular fashion as illustrated in your class noles.) (C) Draw both the uplift pressurc diagram and the net pressurc diagram, to cxact scales, as illustrated in your class notes (following page). (D) Determine the factor of safety (FOS) against potential uplifting by assuming a reasonable value for the unit weight of concrete. (E) Dctcrminc the maximum bcnding moment the cut-off wall is bcing subjected to from the flow of water through the soil mcdium. Net pressure on wall, unet (kPa) Datum W 61 Uplift pressure on base of spillway (kPa) [8 15 30m
The cross section through a concrete dam spillway, including a cut-off sheet pile wall, is given (next page). (A) Determine the uplift pressures induced by the water flow against the base of the spillway at all points 1 through 5. This is a much larger structure than the one given your notes. In the present exercise, the scale goes from 0 to 30 m. (Include all pertinent calculations and report your rcsults in the same organized, tabular fashion as illustrated in your class notes.) (B) Dcterminc the net pressurcs acting on the cut-off wall at all points 5 through 8. (Include all pertinent calculations and report your results in the same organized, tabular fashion as illustrated in your class noles.) (C) Draw both the uplift pressurc diagram and the net pressurc diagram, to cxact scales, as illustrated in your class notes (following page). (D) Determine the factor of safety (FOS) against potential uplifting by assuming a reasonable value for the unit weight of concrete. (E) Dctcrminc the maximum bcnding moment the cut-off wall is bcing subjected to from the flow of water through the soil mcdium. Net pressure on wall, unet (kPa) Datum W 61 Uplift pressure on base of spillway (kPa) [8 15 30m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The cross section through a concrete dam spillway, including a cut-off sheet pile wall, is
given (next page).
(A) Determine the uplift pressures induced by the water flow against the base of the
spillway at all points 1 through 5. This is a much larger structure than the one given
your
notes. In the present exercise, the scale goes from 0 to 30 m. (Include all
pertinent calculations and report your rcsults in the same organized, tabular fashion
as illustrated in your
class notes.)
(B) Dcterminc the net pressurcs acting on the cut-off wall at all points 5 through 8.
(Include all pertinent calculations and report your results in the same organized,
tabular fashion as illustrated in your class noles.)
(C) Draw both the uplift pressurc diagram and the net pressurc diagram, to cxact scales,
as illustrated in your class notes (following page).
(D) Determine the factor of safety (FOS) against potential uplifting by assuming a
reasonable value for the unit weight of concrete.
(E) Dctcrminc the maximum bcnding moment the cut-off wall is bcing subjected to
from the flow of water through the soil mcdium.
Net pressure on
wall, unet (kPa)
Datum
W
61
Uplift pressure
on base of
spillway (kPa)
[8
15
30m
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