Situation 7 - A long footing 2 m wide is buried at a depth of 1 m. Water table is located 0.40 m from the ground surface. Soil above the water table has a unit weight of 19.65 kN/m3 and the saturated soil has a unit weight of 21.70 kN/m3. The soil is cohesionless and has an angle of shearing resistance of 20°. Nc = 17.69, Nq = 7.44, and Nγ = 3.64. (a.) Determine the safe gross load in kN per meter width that the footing can carry assuming a factor of safety of 1.75. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places. (b.) Determine the ultimate bearing capacity of the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places. (c.) Determine the overburden pressure on the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places.
Situation 7 - A long footing 2 m wide is buried at a depth of 1 m. Water table is located 0.40 m from the ground surface. Soil above the water table has a unit weight of 19.65 kN/m3 and the saturated soil has a unit weight of 21.70 kN/m3. The soil is cohesionless and has an angle of shearing resistance of 20°. Nc = 17.69, Nq = 7.44, and Nγ = 3.64. (a.) Determine the safe gross load in kN per meter width that the footing can carry assuming a factor of safety of 1.75. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places. (b.) Determine the ultimate bearing capacity of the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places. (c.) Determine the overburden pressure on the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Situation 7 - A long footing 2 m wide is buried at a depth of 1 m. Water table is located 0.40 m from the ground surface. Soil above the water table has a unit weight of 19.65 kN/m3 and the saturated soil has a unit weight of 21.70 kN/m3. The soil is cohesionless and has an angle of shearing resistance of 20°. Nc = 17.69, Nq = 7.44, and Nγ = 3.64.
(a.) Determine the safe gross load in kN per meter width that the footing can carry assuming a factor of safety of 1.75. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places.
(b.) Determine the ultimate bearing capacity of the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places.
(c.) Determine the overburden pressure on the soil in kPa. Hint: Overburden pressure is the effective stress from the ground surface to the bottom of the footing. Round off to two decimal places.
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