What is the superimposed total lateral force resulting from groundwater pressure on a 8-foot high wall if the groundwater level behind the wall is located 4 feet below the backfill surface?

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the superimposed total lateral force resulting from groundwater pressure on an 8-foot high wall if the groundwater level behind the wall is located 4 feet below the backfill surface is 499.2 pounds. Solution: Use pressure area equation p = (?_w ) (h² ) (K) Where unit weight of water, ?_w = 62.4 pcf K = 1 as water pressure is equal in all directions Therefore, Superimposed lateral force from groundwater pressure =½ (unit weight of water) (height of wall - groundwater table) = ½ (62.4 pcf) (8 - 4 feet)² = 499.2 pounds

What Is the Superimposed Total Lateral Force Resulting from Groundwater