A cantilever retaining wall of 7 meter height (Fig. Ex. 11.2) retains sand. The properties of the sand are: e=0.5, = 30 and G,=2.7. Using Rankine's theory determine the active earth pressure at the base when the backfill is (i) dry. (i) saturated and (ii) submerged, and also the resultant active force in cach case. In adition setermine the total water pressure under the submerged condition. - Backfill submerged G,=27 30 Dry backfill Sand Backfill saturated -Water pressure 259 AN P412AN AB is the wall considered P.48.SI AN Figure Ex. 11.2

Structural Analysis
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Chapter2: Loads On Structures
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A cantilever retaining wall of 7 meter height (Fig. Ex. 11.2) retains sand. The properties of the sand
are: e=0.5, = 30" and G, = 2.7. Using Rankine's theory determine the active earth pressure at the
base when the backfillis (i) dry, (i) saturated and (i) submerged, and also the resultant active force
in cach case. In addition sdetermine the total water pressure under the submerged condition.
- Backfill suhmerged
e0.5
G,2.7
30
Dry backfill
7 m
Sand
Backfill saturated
Water pressure
P.-259 AN/m
P41.2 KN/m
AB is the wall considered
P.48.81 AN/m-
yH= 68.67 kN/m p.
Figure Ex. 11.2
Transcribed Image Text:A cantilever retaining wall of 7 meter height (Fig. Ex. 11.2) retains sand. The properties of the sand are: e=0.5, = 30" and G, = 2.7. Using Rankine's theory determine the active earth pressure at the base when the backfillis (i) dry, (i) saturated and (i) submerged, and also the resultant active force in cach case. In addition sdetermine the total water pressure under the submerged condition. - Backfill suhmerged e0.5 G,2.7 30 Dry backfill 7 m Sand Backfill saturated Water pressure P.-259 AN/m P41.2 KN/m AB is the wall considered P.48.81 AN/m- yH= 68.67 kN/m p. Figure Ex. 11.2
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