Let us calculate the concrete volume of a retaining wall as shown in the drawing.
Given data:
Stem:
Height of stem = h = 5m.
Top width of stem = w1= 0.25m.
Bottom width of stem = w2 = 0.50m.
Length of stem = L = 7m.
Base slab:
Width of base slab = W = 4m.
The thickness of base slab = T = 0.4m.
Length of base slab = L = 7m.
Calculation:
The concrete volume of the base slab
= [L × W × T]
= [Length × width × thickness]
=[7m. × 4m. × 0.4m.]
= 11.2 cum.
The concrete volume of the stem
= [L × {( w1 + w2 ) ÷ 2} × h]
= [7m. × {( 0.25m. + 0.5m. ) ÷ 2} × 5m.]
= [7m. × {0.75m ÷ 2} × 5m.]
= [7m. × 0.375m. × 5m.]
= 13.125 cum.
Now, the total concrete volume of the retaining wall
= [Concrete vol. of the base slab + concrete vol. of the stem.]
= [11.2 cum. + 13.125 cum.]
= 24.325 cum.
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Thank you for going through these calculation steps❤. Have a good day 😄.
Nic3
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