A concrete foundation wall will be subjected to a lateral soil pressure of 45 psf per foot of depth. If the wall is 8 feet high, what is the total lateral force per linear foot at the base of the wall?
Correct Answer
D) 1,440 pounds per linear foot
Lateral pressure increases linearly with depth. At 8 feet deep, pressure = 45 × 8 = 360 psf. Total force = (360 psf × 8 ft) ÷ 2 = 1,440 pounds per linear foot.
Why This Is the Correct Answer
Lateral pressure increases linearly with depth. At 8 feet deep, pressure = 45 × 8 = 360 psf. Total force = (360 psf × 8 ft) ÷ 2 = 1,440 pounds per linear foot.
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