A square footing of 4 m side is placed at1 m depth in a sand deposit. The dry unitweight (y) of sand is 15 kN/m³. Thisfooting has an ultimate bearing capacityof 600 kPa. Consider the depth factors :d = d = 1.0 and the bearing capacityfactor N₁ =18.75. This footing isYplaced at a depth of 2, in the same soildeposit. For a factor of safety of 3.0 asper Terzaghi's theory, the safe bearingcapacity (in kPa) of this footing wouldbe

Answered: Image /qna-images/answer/14a6c203-b527-4450-8ca2-4e091e3ec1f2.jpg

A square footing of 4 m side is placed at 1 m depth in a sand deposit. The dry unit weight (y) of sand is 15 kN/m³. This footing has an ultimate bearing capacity of 600 kPa. Consider the depth factors : d=d=1.0 and the bearing capacity Y factor N = 18.75. This footing is placed at a depth of 2, in the same soil deposit. For a factor of safety of 3.0 as per Terzaghi's theory, the safe bearing capacity (in kPa) of this footing would be

A square footing of 4 m side is placed at 1 m depth in a sand deposit. The dry unit weight (y) of sand is 15 kN/m³. This footing has an ultimate bearing capacity of 600 kPa. Consider the depth factors : d=d=1.0 and the bearing capacity Y factor N = 18.75. This footing is placed at a depth of 2, in the same soil deposit. For a factor of safety of 3.0 as per Terzaghi's theory, the safe bearing capacity (in kPa) of this footing would be

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter16: Shallow Foundations-bearing Capacity

Section: Chapter Questions

Problem 16.19CTP: A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a...

See similar textbooks

Similar questions

A rectangular footing 3m x 2m exerts a pressure of 100kN/m2on a cohesive soil Es= 5x104 kN/m2and µ = 0.5. Estimate the immediatesettlement at the centre, assuming(a) the footing is flexible (b) the footing is rigid (ii) Write about influence of water table in determination of bearing capacity.
A strip footing was constructed on a pure sand which is 1.5 m wide with its base at a depth of 1 m. Using Terzaghi's method, the ultimate bearing capacity of strip footing will be [Take Y = 16 kN/m³, N., = 75, Assume general shear failure] Ya Y
A 2.0 m 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a column load Q. The depth of the footing is 1.0 m. The soil parameters are: c = 0, =26, = 19 kN/m3, cu = 60 kN/m2 (=0 condition). Determine the maximum possible value for Q, considering short-term and long-term stability of the footing.
A circular footing with a 1.5 m diameter is to be constructed 1.22 m below the ground surface. The subsoil consists of a uniform deposit of dense soil having the following strength parameters: Angle of Friction = 250 Nc = 24.1 Nq = 13.1 Ny = 9.1 Cohesion = 48 kN/m2 Unit weight of soil = 20.12 kN/m2 The groundwater table is at a great depth and its effect can be ignored. Determine the following: a) Ultimate bearing Capacity of the soil
For general c- soil, cohesion c is 50 kPa, the total unit weight y. is 20 kN/m3 and the bearing capacity factors are N= 8 and = 3 and N, = 2. Using Terzaghi's formula. Na Calculate the net ultimate bearing capacity for a strip footing of width B=2m at depth z = 1 m. Considering shear failure only, estimate the safe total load on a footing 10m long by 2m wide strip footing using a factor of safety of 3. %3D
A 2m wide strip footing is formed at a depth of 1.5 m below the ground level in a homogenous bed of Dense Sand, having the following properties 36° y 1.85 tm3³, Determine the ultimate, net ultimate Net safe bearing capacity of the footing. Given For = 36⁰, N = 60° N 42, N. 47. Assume a F.O.S of 3
For general c-o soil, cohesion c is 50 kPa, the total unit weight y, is 20 kN/m³ and the bearing capacity factors are N= 8 and N. = 2. Using Terzaghi's formula. Calculate the net ultimate bearing capacity for a strip footing of width B=2m at depth z = 1 %3D 3 and N. = b, %3D %3D m. Considering shear failure only, estimate the safe total load on a footing 10m long by 2m wide strip footing using a factor of safety of 3.
A circular footing with a 1.5 m diameter is to be constructed 1.22 mbelow the ground surface. The subsoil consists of a uniform depositof dense soil having the following strength parameters:Angle of Friction = 25o Nc = 24.1 Nq = 13.1 Ny = 9.1Cohesion = 48 kN/m2Unit weight of soil = 20.12 kN/m2The groundwater table is at a great depth and its effect can beignored.Determine the following:a) Ultimate bearing Capacity of the soilb) Compute the gross allowable bearing capacity of the soil using afactor of safety of 3.c) Compute the total allowable load that the footing can carry.
For a certain soil the cohesion is 50 kPa, the unit weight is 19.2 kN/m³, angle of friction is 10° 1. Assuming local shear failure, calculate the net ultimate bearing capacity in kPa for a strip footing of width = 4.5 m at a depth of 4.5 m. Terzaghi's ultimate bearing capacity equation for strip footing is given by qu = c'Nc' + YDfNq' + 0.5YBNY' with Nc' = 7.5, Nq' = 1.8, NY' = 0.48 2. Considering general shear failure, calculate the net ultimate bearing capacity on a square footing 4m x 4m using a load factor of 2.5 m. using Nc 9, Nq = 2.5, Ny = 1.2 3. Compute the net allowable load on the square footing %3D %3D %3D %3D %3D
A 2.0 m x 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry acolumn load Q. The depth of the footing is 1.0 m. The soil parameters are: c’= 0, ϕ’= 26º, γ =19kN/m3, and cu = 60 kN/m2. Determine the maximum possible value for Q, considering short-termand long-term stability of the footing
A circular footing having a diameter of 1.47m has its bottom at a depth of 2.54 m from the ground surface. The water table is located at a depth of 1.09m below the ground. FS = 2.86 Properties of soil are as follows: Specific gravity, GS = 2.72 Void ratio, e = 0.19 Cohesion, c=20.20 kPa, Assume local shear failure and Terzhagi's Bearing Capacity Equation. Use the following bearing capacity factors: Nc' = 11.85 Nq' = 3.88 Ny' = 1.12 Calculate the following Net Allowable load on the footing, kN HINT: Use Dry unit weight for soil above the groundwater table. Unit weight of water = 9.81 kN/m² NOTE: ROUND OFF ONLY ON THE FINAL ANSWER
A footing is supported by soil having a cohesion of 50 kPa. The unit weight of soil is 19 kN/m^3 and the depth of footing is 3 m below the ground surface. The angle of internal friction is 10 degrees.1. Assuming a local shear failure, which of the following most nearly gives the net ultimate bearing capacity per meter for a strip footing having a width of 1.25 m? Use the equation of Terzaghi’s ultimate bearing capacity for strip footing. a. 314 kPab. 380 KPac. 256 kPad. 280 kPa2. If factor of safety is 2.5, which of the following most nearly gives the safe bearing pressure for a footing 1.25 m wide and 6 m long assuming a general shear failure? Use the equation.a. 208 kPab. 240 kPac. 300 KPad. 180 kPa