Principles of Foundation Engineering, SI Edition
8th Edition
ISBN: 9781305723351
Author: Braja M. Das
Publisher: Cengage Learning US
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Chapter 4, Problem 4.4P
The applied load on a shallow square foundation makes an angle of 20° with the vertical. Given: B = 5 ft, Df = 3 ft, γ = 115 lb/ft3, ф′ = 25°, and c′ = 600 lb/ft2. Use FS = 3 and determine the gross inclined allowable load. Use Eq. (6.28).
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The appied load on a shallow square fondation makes an angle of 20° wiht the vertical. Given: B= 5 ft, Df= 3 ft, γ= 115 lb/ft3, φ’= 25°, and c’= 600 lb/ft2. Use FS= 3 and determine the gross inclined allowable load. Use Eq (6.28)
The applied load on a shallow square foundation makes an angle of 15° with
the vertical. Given: B = 5.5 ft, D; = 4 ft, y
350 lb/ft?. Use FS = 4 and determine the gross allowable load. Use Eq.
(3.23). Use the bearing capacity, shape, depth, and inclination factors given in
Section 3.6.
= 107 lb/ft', ø' = 25°, and c' =
3. A square foundation is constructed in a soil deposit as shown in the figure below. Assume
that the groundwater table is 6 meters below the foundation. The applied load on the shallow
square foundation makes an angle of 10° with the vertical. Use FS = 3 and determine the
allowable load. (Use general bearing capacity equation.)
6m
4 m
y = 17.5 kN/m³
' = 33°
c' = 20 kN/m²
Ysat = 20k N/m³
Groundwater table
Chapter 4 Solutions
Principles of Foundation Engineering, SI Edition
Ch. 4 - For the following cases, determine the allowable...Ch. 4 - A square column foundation has to carry a gross...Ch. 4 - Prob. 4.3PCh. 4 - The applied load on a shallow square foundation...Ch. 4 - A column foundation (Figure P6.9) is 3 m × 2 m in...Ch. 4 - Prob. 4.6PCh. 4 - For the design of a shallow foundation, given the...Ch. 4 - An eccentrically loaded foundation is shown in...Ch. 4 - Prob. 4.9PCh. 4 - For an eccentrically loaded continuous foundation...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.Similar questions
- The applied load on a shallow square foundation makes an angle of 15° with the vertical. Given: B= 1.83 m, D;= 0.91 m, 7 = 18.08 kN/m³, ' = 25°, and d' = 23.96 kN/m?. Use FS= 4 and determine the gross allowable (vertical component) load. Use Eq. (16.9).arrow_forwardAnswer correctlyarrow_forwardPls help.arrow_forward
- 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.arrow_forwardProb. 3): A square shallow foundation is shown below. If the load eccentricity is 0.3 m, determine the maximúm allowable load that the foundation can carry. Use Mayerhof's method, and FS as 4. (Eccentricity in one direction only) e = 0.3 m Qal Y = 16.3 kN/m3 c' = 20 kN/m? p'=28° 1.0 m 1.5 m X 1.5 m Centerlinearrow_forwardQuestion attachedarrow_forward
- A strip foundation is design to carry 750 kN/m with width of footer 3m, assuming depth of foundation is 1.5m and the soil underlying the foundation is clayey sand. Take ? = 16kN/m3, c = 9.5 kPa and ϕ = 32o.Find the factor of safety against bearing capacity failure.arrow_forwardRepeat Problem 4.8 using Prakash and Saran’s method.arrow_forwardGarrow_forward
- " (a) Qu 1 Qu 3 B (b) M M → X M Qu M (c) Figure 4.24 Analysis of foundation with two-way eccentricity 7 = 17kN/m³ friction angle = : 35⁰° , and cohesion c = 0 Qu (d) The shallow foundation is shown in Figure 4.24 measures 1.5 m X 2.25 m and is subjected to a centric load and a moment. If ев = = 0.12m e₁ eL = 0.36m 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 weightarrow_forwardFarrow_forward1. A rectangular foundation is 3 m x 4m in plan is acted upon by a inclined force of 50 kN at an angle of 15° to the vertical. The soil supporting the foundation has a friction angle of '=27° and c'=22 kN/m². The unit weight of soil is 18kN/m³. Determine the allowable gross load on the foundation with a factor of safety of 3. Assume that the depth of the foundation is 2 m, depth of water table 3.5 m and that local shear failure occurs in the soil. Use general Bearing Capacity equation and Mayerhoff, Hansen's and IS 6403-1981 bearing capacity factors separately to calculate bearing capacity. State your assumption in case any.arrow_forward
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