Problem.№3- The plan of a mat foundation is shown in Figure. Calculate the soil pressure at points A, B, C, D, E, and F. (Note: All column sections are planned to be 0.5 m 3 0.5 m.) All loads shown are factored loads according to ACI 381-11 (2011). 550 KN 2000 KN 5.25 m 2000 KN 550 kN F →K 0.25 m G H 10 m B i 660 kN 2000 KN 10 m 2000 KN 660 kN E * I 600 KN 1600 KN 5.25 m J 10 m 1600 KN 470 kN с D 0.25 m 9 m 9 m 9 m 0.25 m 0.25 m X

Problem.№3- The plan of a mat foundation is shown in Figure. Calculate the soil pressure at points A, B, C, D, E, and F. (Note: All column sections are planned to be 0.5 m 3 0.5 m.) All loads shown are factored loads according to ACI 381-11 (2011). 550 KN 2000 KN 5.25 m 2000 KN 550 kN F →K 0.25 m G H 10 m B i 660 kN 2000 KN 10 m 2000 KN 660 kN E * I 600 KN 1600 KN 5.25 m J 10 m 1600 KN 470 kN с D 0.25 m 9 m 9 m 9 m 0.25 m 0.25 m X

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 16.7P: A column foundation (Figure 16.23) is 3 m 2 m in plan. Given: Df = 1.5 m, =25, c = 70 kN/m2. Using...

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Consider a continuous foundation of width B = 1.4 m on a sand deposit with c = 0, = 38, and = 17.5 kN/m3. The foundation is subjected to an eccentrically inclined load (see Figure 6.33). Given: load eccentricity e = 0.15 m, Df = 1 m, and load inclination = 18. Estimate the failure load Qu(ei) per unit length of the foundation a. for a partially compensated type of loading [Eq. (6.89)] b. for a reinforced type of loading [Eq. (6.90)]
A square column foundation has to carry a gross allowable load of 1805 kN (FS = 3). Given: Df = 1.5 m, =15.9 kN/m3, = 34, and c = 0. Use Terzaghis equation to determine the size of the foundation (B). Assume general shear failure.
A column foundation (Figure 16.23) is 3 m 2 m in plan. Given: Df = 1.5 m, =25, c = 70 kN/m2. Using Eq. (16.9) and FS = 3, determine the net allowable load [see Eq. (16.16)] the foundation could carry. FIG. 16.23
Refer to Figure 5.2. Given: B = L = 1.75 m, Df = 1 m, H = 1.75 m, = 17 kN/m3, c = 0, and = 30. Using Eq. (5.6) and FS = 4, determine the gross allowable load the foundation can carry.
Refer to Figure 5.9. For a continuous foundation in two-layered clay, given:●● γ1 = 121 lb/ft3, cu(1) = 1000 lb/ft2, Φ1 = 0●● γ2 = 115 lb/ft3, cu(2) = 585 lb/ft2, Φ2 = 0●● B = 3 ft, Df = 1.65 ft, H = 1.65 ftFind the gross allowable bearing capacity. Use a factor of safety of 3.
The plan of a mat foundation is shown in Figure 1. Calculate the soil pressure at points A, B, C, D, E and F. (Note: All column sections are planned to be 450mmX450mm). Determine factor of safety of the Mat.
For the following cases, determine the allowable gross vertical load-bearing capacity of the foundation. Use Terzaghi’s equation and assume general shear failure in soil. Use FS=4. B = 1.5 m Df = 1.2 m Φ' = 35° c' = 0 specific weight of the soil = 17.8 kN/m^3 Foundation Type = Continuous
Refer to Figure 5.2 and consider a rectangular foundation. Given: B = 1.5 m, L = 2.5 m, Df = 1.2 m, H = 0.9 m, Φ' = 40º, c' = 0, and γ = 17 kN/m3. Using a factor of safety of 3, determine the gross allowable load the foundation can carry. Use Eq. (5.3).
For the following cases, determine the allowable gross vertical load-bearing capacity of the foundation. Use Terzaghi’s equation and assume general shear failure in soil. Use FS=4. B = 3 m Df = 2 m Φ' = 30° c' = 0 specific weight of the soil = 16.5 kN/m^3 Foundation Type = Square
A rectangular foundation has a dimensions B=1 m, and L=4 m, the depth of foundation Df=2.2 m, the soil unit density is 16.1 KN/m^3, the cohesion 15 KN/m^2, Nc=10.16, Nq=2.98, Ngamma=0.69 find the force in KN that the foundation can support for a factor of safety 3
The shallow foundation shown in Figure 6.25 measures 1.5 m × 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 ф′ = 35°, and cohesion c′ = 0.
The foundation of the figure presents an eccentricity that goes in 2 directions, eb= 0.20, eL=0.35. Using the general Meyerhof bearing capacity equation and FS= 1.5, determine Qu(adm) that the foundation can support.