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HOW TO CALCULATE VOLUME OF CONCRETE OF COUNTER FORT RETAINING WALL

Hello everyone. In this blog we will learn about HOW TO CALCULATE VOLUME OF CONCRETE OF COUNTER FORT RETAINING WALL. So lets start.


HOW TO CALCULATE VOLUME OF CONCRETE OF COUNTER FORT RETAINING WALL


QUESTION: Calculate volume of 60' long and 15' high counter-fort retaining wall?

GIVEN DATA:

Counter-fort retaining wall consist of 3 parts.
  • Slab
  • Stem
  • Counter-fort Buttress
Width of slab = w = 12’
Thickness of slab = t = 1’

Top width of stem = a = 0.6’
Bottom width of stem = b = 2’

Top width of counter-fort buttress = a = 1’
Bottom width of counter fort buttress = b= 6’

Height of Retaining wall = h= 15’
Length of retaining wall = L = 60’

Total volume of counter-fort retaining wall = Volume of slab+ Volume of stem + volume of counter-fort buttress

Volume of slab = 12*1*60 = 720 cft

Volume of stem = {a+b)*h/2}*L

= {(0.6+2)*15/2}*60 = 1170 cft

Volume of counter-fort buttress = {(a+b)*h/2}*L = {(1+6)*15/2}*0.6 = 31.5 cft *7 = 220.5 cft


Total volume of counter-fort retaining wall = 720+1170+220.5 =2110.5 cft




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