5. A column carrying a load of 750 kN is to be founded on a square footing at a depth of 2 m below the ground surface in a deep clay stratum. What will be the size of the footing if a factor of safety of 3 is considered? Pertinent soil parameters are saturated unit weight of 18.5 kN/m', cohesion of 22.5 kPa and angle of internal friction of 18°. The groundwater is at the base of the footing but is expected to rise to the ground level during the rainy seasons. 790 k

5. A column carrying a load of 750 kN is to be founded on a square footing at a depth of 2 m below the ground surface in a deep clay stratum. What will be the size of the footing if a factor of safety of 3 is considered? Pertinent soil parameters are saturated unit weight of 18.5 kN/m', cohesion of 22.5 kPa and angle of internal friction of 18°. The groundwater is at the base of the footing but is expected to rise to the ground level during the rainy seasons. 790 k

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Shallow Foundations: Ultimate Bearing Capacity

Section: Chapter Questions

Problem 6.17P: A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a...

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A square footing (B B) must carry a gross allowable load of 1160 kN. The base of the footing is to be located at a depth of 2 m below the ground surface. If the required factor of safety is 4.5, determine the size of the footing. Use Terzaghis bearing capacity factors and assume general shear failure of soil. Given: = 17 kN/m3, c = 48 kN/m2, =31.
A 2 m 3 m spread footing placed at a depth of 2 m carries a vertical load of 3000 kN and a moment of 300 kN m, as shown in Figure P6.14. Determine the factor of safety using Meyerhofs effective area method. Figure P6.14
A square footing 2.5 m X 2.5 m is built on a homogeneous bed of sand of density 19 kN/m3 having an angle of shearing resistance of 36o . The depth of foundation is 1.5 m below the ground surface. Calculate the safe load that can be applied on the footing with a factor of safety of 3.
A column is to be supported by a square footing, 2.00 m on a side, on a founding depth of 1.00 m into a cohesionless soil deposit. The unit weight of the soil is 16 kN/m³ and the angle of internal friction of 25 deg. Nq= 12.7 Ny= 8.34 Evaluate the contribution of the depth of embedment to the ultimate bearing capacity of the soil, in kPa. 2 Evaluate the contrbution of the footing dimension to the ultimate bearing capacity of the soil, in kPa. 3 Evaluate the concentric load, in kN, that the footing can safely support, using a factor of safety of 3.0 against bearing capacity failure.
For a square footing, determine the gross allowable load, Qall, that the footing can carry. Use Terzaghi,s equation for general shear failure ( fs=3.5). Given : Density of soil above the underground table, p=1800 kg/m^3, saturated soil density below the underground table, P sat=1980 kg/m^3, c=24 kN/m^2, $=25°‌, B=1.8 m, Df=1.2 m and h=2 m.
A square footing 2.5 m X 2.5 m is built on a homogeneous bed of sand of density 19 kN/m3having an angle of shearing resistance of 36o. The depth of foundation is 1.5 m below the ground surface. Calculate the safe load that can be applied on the footing with a factor of safety of 3. Take bearing capacity factors as Nc= 27, Nq = 30, Nγ = 35
A square footing which carries an axial load of 13000 kg has its bottom resting on a ground water table at a depth of 2.5 m from the ground surface. Nc = 35, Nq = 22, Nγ = 19. Take PDRY = 1910 kg/m3 and PSAT = 1600 kg/m3, c = 1800 kg/m2. Compute the net soil pressure.
A column carrying a load of 750 kN is to be founded on a square footing at a depth of 2m below the ground surface in a deep clay stratum. What will be the size of the footing if a factor of safety of 2.5 is considered? Pertinent soil parameters are saturated unit weight of 18.5kN/m^3 , cohesion of 30 kPa and angle of internal friction of 18°. The groundwater is at the base of the footing but is expected to rise to the ground level during the rainy seasons.
Q/ for the circular footing 5m diameter . find the thickness of footing if (factor of safety = 3) . salty sand . Ƴsaturated = 19 kN/m3 C = 10 kN/m2 ƴd = 15 kN/m3
A footing 2m square is located a depth of 4m in a stiff clay of saturated unit weight 21kN/m3. The undrained strenght of the clay at a depth of 4m is given by the 3 parameters c=120kN/m2 and φ=0o . For a factor of a safety of 3 with respect to shear failure ,What load could be carried by the footing.
A square footing 2.8 m X 2.8 m is built on a homogeneous bed of sand of density 18 kN/m3 and ϕ = 36o. If the depth of foundation is 1.8 m, determine the safe load that can be applied on the footing.
A continuous footing is shown in Figure 16.17. Using Terzaghi’s bearing capacity factors, determine the gross allowable load per unit area (all ) that the footing can carry. Assume general shear failure. Given: γ = 19 kN/m3, c′ = 31kN/m2 , , Df = 1.5 m, B = 2 m, and factor of safety = 3.5.