Please allow for all steps A (5m x 5m) square foundation is constructed at 2.5m in a soil with the following properties:y = 18.34 kN/m³ c' = 28.0 kN/m² and q' = 31°Using a factor of safety of 3 against bearing capacity failure and assuming a constant unit weight of thesoil, determine the safe bearing capacity (qa in kN/m²) when:a) The water table is level with the foundation base (Scenario A)b) The water table rises to 1m below Ground Level (G.L.) (Scenario B)c) Percent reduction in bearing capacity with fluctuation of GWT from scenario A to scenario B.

Based on this theory, shallow foundations have depths equal to or less than their widths. According…

A (5m x 5m) square foundation is constructed at 2.5m in a soil with the following y = 18.34 kN/m³ c' = 28.0 kN/m² and p' = 31° Using a factor of safety of 3 against bearing capacity failure and assuming a consta soil, determine the safe bearing capacity (qa in kN/m2) when: a) The water table is level with the foundation base (Scenario A) b) The water table rises to 1m below Ground Level (G.L.) (Scenario B) with fluctuation of GWT from scena

A (5m x 5m) square foundation is constructed at 2.5m in a soil with the following y = 18.34 kN/m³ c' = 28.0 kN/m² and p' = 31° Using a factor of safety of 3 against bearing capacity failure and assuming a consta soil, determine the safe bearing capacity (qa in kN/m2) when: a) The water table is level with the foundation base (Scenario A) b) The water table rises to 1m below Ground Level (G.L.) (Scenario B) with fluctuation of GWT from scena

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter9: Settlement Of Shallow Foundations

Section: Chapter Questions

Problem 9.15P

See similar textbooks

Similar questions

A 2.0 m wide continuous foundation carries a wall load of 350 kN/m in a clayey soil where = 19.0 kN/m3, c = 5.0 kN/m2, and = 23. The foundation depth is 1.5 m. Determine the factor of safety of this foundation using Eq. (6.28).
A circular foundation of 1.5 m diameter is constructed in a sand deposit. Given: Df =1 5 m, soil friction angle Ø =35o and soil unit weight γ =17 4kN/m3. Estimate the ultimate uplift capacity of the foundation.
For an eccentrically loaded continuous foundation on sand, given B = 1.8 m, Df = 0.9 m, e/B = 0.12 (one-way eccentricity), γ = 16 kN/m3, and Φ' = 35°. Using the reduction factor method [Eq. (4.60)], estimate the ultimate load per unit length of the foundation.
A 1m deep foundation is placed on a soil of unit weight 20 kN/m3 and ultimate bearing capacity of 300 kN/m2. Determine the net safe bearing capacity for a factor of safety of 2.5
A continuous foundation with a width of 1 m is located on a slope made of clay soil. Refer to Figure 5.19 and let Df = 1 m, H = 4 m, b = 2 m, γ = 16.8 kN/m3, c = cu = 68 kN/m2, Φ= 0, and β = 60°.a. Determine the allowable bearing capacity of the foundation. Let FS = 3.b. Plot a graph of the ultimate bearing capacity qu if b is changed from 0 to 6 m.
A square column foundation has to carry a gross allowable load of 1805 kN ( FS = 3). Given: D f = 1.5 m, γ = 15.9 kN/m 3 , ϕ ′ = 34 ° , and c ′ = 0. Use Terzaghi's equation to determine the size of the foundation ( B ). The applied load on a shallow square foundation makes an angle of 15° with the vertical.
A square foundation is 1.5m x 1.5m in plan. The soil supporting the foundation has a friction angle '=20 and c'=15.2 kN/m². The unit weight of soil is y=17.8 kN/m². Determine the allowable gross load on the foundation with a factor of safety F,=4. Assume that the depth of the foundation D=1m and the general shear failure occur in the soils mass.
A 2.0 m wide continuous foundation carries a wall load of 350 kN/m in a clayey soil where = 19.0 kN/m3, c = 5 kN/m2 and =23. The foundation depth is 1.5 m. Determine the factor of safety of this foundation.
A long foundation 0.6 m wide carries a line load of 100 kN/m. Calculate the vertical stress σz, at a point P, the coordinates of which are x = 2.75 m, and z = 1.5 m, where the x-coordinate is normal to the line load from the central line of the footing.
A 2.0 m wide square foundation is placed at 0.5 m depth ina saturated clay where cu= 40 kN/m2 and delta=19.0 kN/m3 .There is a very stiff stratum present at 1.0 m below the foundation. Determine the ultimate bearing capacity using Buisman’s (1940) equation.
In the following exercise, the load capacity (Qu) per meter of length must be calculated for a continuous foundation that has an eccentricity e=1.2m in the width direction of the foundation.
The shallow foundation shown in Figure 4.24 measures 1.5 m x 2.25 m and is subjected to a centric load and a moment. If eB = 0.12 m, eL = 0.36 m, and the depth of the foundation is 0.8 m, determine the allowable load the foundation can carry. Use a factor of safety of 4. For the soil, we are told that unit weight γ = 17 kN/m3, friction angle Φ' = 35°, and cohesion c' = 0.