b) A square footing 3.5 m X 3.5 m is built on a homogeneous bed of sand of density 16 kN/m having an angle of shearing resistance of 36°. The depth of foundation is 3 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 N= 27, Nq = 30, Ny = 35

b) A square footing 3.5 m X 3.5 m is built on a homogeneous bed of sand of density 16 kN/m having an angle of shearing resistance of 36°. The depth of foundation is 3 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 N= 27, Nq = 30, Ny = 35

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter17: Settlement Of Shallow Foundations

Section: Chapter Questions

Problem 17.12P

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b) A square footing 3.5 m X 3.5 m is built on a homogeneous bed of sand of density 16 kN/m² having an angle of shearing resistance of 36°. The depth of foundation is 3 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, Ny = 35
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
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A 1.5 m wide strip footing is to be placed on a homogeneous clay deposit at a depth of 1.0 m below ground level. The average unit weight of soil is 19 kN/m³ and the angle of friction is 0. The cohesive strength of clay can be taken as 40 kN/m². The water table is very deep. The load on the footing is 100 kN/m run. Check the safety of the foundation against bearing capacity failure.
A strip footing is to be designed to support a dead load of 500 kN/m and an imposed load of 300 kN/m at a depth of 0.7 m in a gravelly sand. Characteristic values of the shear strength parameters are c' = 0 and ϕ' =40˚. (a) Determine the required width of the footing if a factor of safety of 3.0 and assuming that the water table may rise to foundation level. (b) Would a foundation of that width satisfy the bearing resistance limit state? The unit weight of the sand above the water table is 17 kN/m3 and below the water table the saturated unit weight is 20 kN/m3.
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A circular footing with a 1.5 m diameter is to be constructed 1.2 m below the ground surface. Thesubsoil consists of a uniform deposit of dense soil having the following strength parameters.Angle of internal friction = 25o, Nc = 24.1 ; Nq =13.1 ; N = 9.1Unconfined compressive strength = 96 kN/m2Unit weight of soil = 20.12 kN/m3The ground water table is at great depth and its effect can be ignored.a) Compute the Ultimate bearing capacity of the soil.b) Compute the gross allowable bearing capacity of the soil using a factor of safety of 3.c) Compute the allowable load the footing could carry
A rectangular footing of breadth size 3 m and length 5 m is designed on CLAY at a depth of 1.5 m below the ground level to support a vertical load of 1200 kN. The unit weight of the soil is 19 kN/m³ and shear strength parameters are cu 65 kN/m² and θ =0°. Calculate factor of safety and take the appropriate bearing capacity coefficient Nc, Nq, and Nr, as 5.7, 1.0 and 0 respectively.
4) A strip footing is to be placed 2m below the surface of soil having a cohesion of 40kpa, unit weight of 18.2kn/cum and angle of friction of 10deg. Nc=9.61 Nq=2.69 Ny=0.56 Nc'=8.02 Nq'=1.94 Ny'=0.24 a) Assuming local shear failure, compute the ultimate bearing capcity of footing if width is 1.25m b) Considering a rectangular footing of 1.25mx6m and a load factor of 2.5, determine allowable bearing capacity under general shear failure
Solve using eurocode 7, design approach 1, combination 2
Solving using Eurocode 7, design approach 1, combination 2
Q.1. A rectangular footing 2.0 m by 3.0 m is built in a homogeneous bed of sand of having bulk unit weight 20 kN/m³ and saturated unit weight 21 kN/m³ with an angle of shearing resistance of ( 37 P. The depth of the base of footing is 1.8 m below the ground surface and water table is located at a deth of 1.0m below the base of the foundation. a) Justify the adequacy of the footing if the proposed design load on the foundation is 1500 kN. b) depth 1.0 m below the ground Level. Calculate the safe load can be carried by the footing if the water table is located at a Consider the factor of safety of 3. Use Terzaghi's Analysis.