Determine the ultimate bearing capacity of a 1.3 m wide strip footing foundedat a depth of 1m below the ground surface. Soil parameters are φ′ = 36° c′ =10 kPa, and γ = 18 kN/m 3.
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at a depth of 1m below the ground surface. Soil parameters are φ′ = 36° c′ =
10 kPa, and γ = 18 kN/m 3
.
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- 5A 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 Y₁ = 16 kN/m³, N = 75, Assume general shear failure] 1 (a) 1876 kN/m² (b) 1860 kN/m² (d) 1792 kN/m² (c) 1788 kN/m²A footing 2.50 m x 2.50 m is located at a depth of 1.5 m in sand. The shear strength parameters to be used in design are c' = 0 and o' = 38°. What is the net ultimate bearing capacity of footing if the water table is at 3 m below foundation level? The unit weight of sand is 18 kN/m3 and FOS = 3 For O' = 38°, N, = 67 and Ng = 49Design the size of the square footing that will carry a safe gross load of 17,481.0 kN loaded eccentrically along the x− direction. Use the General Bearing Capacity Equation. FS=3.0 and e=0.25 m. Hint: The depth of the groundwater table is less than the footing width B.
- 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.A rectangular footing of width 2.5m and length 3.5mis resting on a sandy silt at a depth of 3m from the ground surface. The angle of internal friction (phi=20)and cohesion is (c=30kn/m2). The water table is at a great depth. Find the bearing capacity of soil using terzaghi's equation and tje following factor to used. Nc=17.71 Nq=7.4 Ny=5 Factor of safety (F) =3.0 y=35kn/m3A 1.5m diameter footing is to be constructed 1.22m below the ground surface. The subsoil consists of a uniform deposit of dense soil having angle of internal friction=25deg, unconfined compressive strength=96KPa, unit wt of soil= 20.12kPa. a. Compute the gross allowable bearing capacity using terzaghi's equation with factor of safety of 3.Nc=24.1, Nq=13.1, Ny=9.1. b. Compute the ultimate bearing capacity using terzaghi's equation.Nc=24.1, Nq=13.1, Ny=9.1. c. Compute the total allowable load including footing,column,weight of soil surcharge that the footing can carry using terzaghi's equation with factor of safety of 3. Nc=24.1, Nq=13.1, Ny=9.1.
- A footing 2.25 x 2.25 m is located at a depth of 1.5 m in a sand, the shear strength parameters to be used in design being c' = 0 and ϕ' = 38˚. Determine the ultimate bearing capacity: (a) if the water table is well below foundation level and (b) if the water table is at the surface. The unit weight of the sand above the water table is 18 kN/m^3; the saturated unit weight is 20 kN/m^3. Note: Use the equations to solve for Nc, Nq and Nγ.A square footing shown has the following details: Unit weight of soil = 17.66 kN/m3 Saturated unit weight of soil = 21.32 kN/m³ cohesion = 28.20 kPa %3D friction angle = 30 degrees %3D B = 1.61 meter Df = 1.60 meter P 1,559.97 kN e/B = 0.14 --> one way eccentricity Calculate for the gross factor of safety. Use Meyerhof General Bearing Capacity Formula. D. BXB Water tableWhat is the net ultimate bearing capacity of a footing 2.5 mx 2.5 m built on a sand of unit weight 16 kN/m³ and having an angle of friction of 25°. The depth of the footing is 1.5 m below the ground surface. No = 5.6 and N₁ = 3.2.
- A square footing shown has the following details: Unit weight of soil = 15.28 kN/m3 Saturated unit weight of soil = 19.92 kN/m3 cohesion = 21.44 kPa %3D friction angle = 24 degrees %3D B = 2 meter Df = 2.45 meter P = 861 kN e/B = 0.12 --> one way eccentricity Calculate for the net allowable bearing capacity using FOS = 2.8. Use Meyerhof General Bearing Capacity Formula. D, B B Water tableA strip footing is to be designed to carry a load of 800 kN/m at the depth of 7m in a gravelly sand . the appropriate shear strenght parameter are c =0 and φ=40o. Determine the width of the footing if a factor of safety 3 against shear failure is specified and assuming that that the water table may raise to foundation level.Above the water table the unit weight of the sand is 17 kn/m3 and below the water table the saturated unit weight is 20 kN/m3A square footing having a dimension of 2.5m x 2.5m is supported by a cohesionless soil with the following properties: ϕ = 32∘ γ = 18 kN/m3 γsat = 20 kN/m3 The bottom of the footing is 1.5m below the ground surface. Use FS = 3 and γw = 9.81 kN/m3. Apply the general bearing capacity equation. GWT is at the bottom of the footing and load is applied at an eccentricity of 250mm along one side. 1. Determine the effective short dimension, B' (in m). 2. Determine the effective long dimension, L' (in m). 3. Determine the ultimate bearing capacity (in kPa). 4. Determine the magnitude of the gross allowable load applied eccentrically (in kN).