Principles of Foundation Engineering (MindTap Course List)
9th Edition
ISBN: 9781337705028
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 6, Problem 6.8P
A 2.0 m wide strip foundation is placed in sand at 1.0 m depth. The properties of the sand are: γ = 19.5 kN/m3, c′ = 0, and ф′ = 34°. Determine the maximum wall load that the foundation can carry, with a factor of safety of 3.0, using
- a. Terzaghi’s original bearing capacity equation with his bearing capacity factors, and
- b. Meyerhof’s general bearing capacity equation with shape, depth, and inclination factors from Table 6.3.
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Question 2) For a shallow foundation shown below:
A. Estimate the ultimate bearing capacity when the water table located at a depth of 2 m
below the ground surface.
B. Estimate the moments about the x- and y-axis; assume that the foundation is subjected
to a vertical load and a moment. If eg and eL is 0.33 m and 0.12 m, respectively.
G.S
Iz
2 m
(2 m x 3 m)
Silty clay
Yo=17 kN/m³ , Ysat = 20 kN/m3
%3D
6 m
c'=78 kN/m? 0'=35°
Shear modulus=250 kN/m?
CS Scanned with CamScanner
Question attached
Use Meyerhof's equation
Chapter 6 Solutions
Principles of Foundation Engineering (MindTap Course List)
Ch. 6 - For the following cases, determine the allowable...Ch. 6 - A 5.0 ft wide square footing is placed at 3.0 ft...Ch. 6 - Prob. 6.3PCh. 6 - Redo Problem 6.2 using the general bearing...Ch. 6 - The applied load on a shallow square foundation...Ch. 6 - A 2.0 m wide continuous foundation carries a wall...Ch. 6 - Determine the maximum column load that can be...Ch. 6 - A 2.0 m wide strip foundation is placed in sand at...Ch. 6 - A column foundation (Figure P6.9) is 3 m × 2 m in...Ch. 6 - For the design of a shallow foundation, given the...
Ch. 6 - An eccentrically loaded foundation is shown in...Ch. 6 - Prob. 6.12PCh. 6 - For an eccentrically loaded continuous foundation...Ch. 6 - A 2 m 3 m spread footing placed at a depth of 2 m...Ch. 6 - Prob. 6.15PCh. 6 - A tall cylindrical silo carrying flour is to be...Ch. 6 - A 2.0 m 2.0 m square pad footing will be placed...Ch. 6 - An eccentrically loaded continuous foundation is...Ch. 6 - A square foundation is shown in Figure P6.19. Use...Ch. 6 - The shallow foundation shown in Figure 6.25...Ch. 6 - Consider a continuous foundation of width B = 1.4...
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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
- Help!arrow_forwardMat foundation (20 x 30) is built on a sand layer with an internal friction angle of 32 degrees and unit weight of y = 19 KN/m³ Use vesic's method to find the bearing capacity in the following conditions. 1. Water level at (1). 2. Water level at (2). Ground Surface (1) (2) 1.0 Bed Rock 4.0 7,0arrow_forwardFor a shallow foundation shown below: A. Estimate the ultimate bearing capacity when the water table located at a depth of 2 m below the ground surface. B. Estimate the moments about the x- and y-axis; assume that the foundation is subjected to a vertical load and a moment. If eg and er is 0.33 m and 0.12 m, respectively. G.S 2 m (2 m x 3 m) Silty clay Ya=17 kN/m , Ysat = 20 kN/m3 6 m c'=78 kN/m? 0=35° Shear modulus=250 kN/m2 CS Scanned with CamScannierarrow_forward
- A concrete foundation 3 m wide, 9 m long and 0.75 m thick is to be founded at a depth of 1.5 m in a deep deposit of dense sand. The angle of shearing resistance of the sand is 35° and its unit weight is 19 kN/m². The unit weight of concrete is 24 kN/m³. Using the working stress design approach with a factor of safety, Fs = 3.0: Determine the safe bearing capacity of the sand deposit under the prevailing conditions. Determine the safe bearing capacity of the foundation if it is subjected to a vertical load of 2200 kN and a horizontal load of 500 kN. The resulting eccentricity is 0.3 m in the foundation width (B) direction QpCarrow_forwardQuestion attachedarrow_forwardA strip foundation with dimensions B has to be constructed on sandy soil. The foundation will be located at 1 m below the ground surface. The unit weight and the static angle of friction of the soil are 18 kN/m3 and 39o , respectively. The foundation may occasionally be subjected to a maximum dynamic load of 1800 kN increasing at a moderate rate. (i) Determine the size of the foundation using a safety factor of 3 by assuming the kh and kv values are 0.176 and 0, respectively. (ii) Determine the seismic settlement of the foundation if the design earthquake parameters are V = 0.4 m/sec and A = 0.32.arrow_forward
- answer in complete solution plsarrow_forwardA square shallow foundation (B × B) is planned to be constructed on a normality consolidated (NC) clay soil as shown in the below figure. The maximum acceptable settlement for the foundation is equal to 2.0 inches (5 cm), and the safety factor against bearing capacity is FS = 4. Determine the size of foundation. (Note: To simplify the calculations, ignore both the elastic settlement and secondary compression settlement. Also consider 4o'ave = 40'm) Q = 500 kN Ysat = 19.24 kN/m³ en = 0.8 C. = 0.25 p'= 0 c'= 25 kPa 2 m B ×B FS again Bearing Capacity = 4 Acceptable settlement = 2.0 inches 10 marrow_forwardA square shallow foundation (B × B) is planned to be constructed on a normality consolidated (NC) clay soil as shown in the below figure. The maximum acceptable settlement for the foundation is equal to 2.0 inches (5 cm), and the safety factor against bearing capacity is FS = 4. Determine the size of foundation. (Note: To simplify the calculations, ignore both the elastic settlement and secondary compression settlement. Also consider Ao'ave = 4o'm) Q = 500 kN Ysat = 19.24 kN/m³ eo = 0.8 C. = 0.25 p'= 0 c' = 25 kPa FS again Bearing Capacity = 4 Acceptable settlement = 2.0 inches 2 m В ХВ 10 marrow_forward
- A square shallow foundation is located at depth of 1 m, in stronger sand. A softer sand layer is located at a depth of 3 m measured below the ground surface. H= 5.0 m and K, 4.0. Find B to carry the 4000 kN load using a factor of safety FS = 3. Assume that the bearing capacity of the top layer exceeds the ultimate bearing capacity. %3D Notes: For the top sand layer, unit weight= 14 kN/m'; d' = 30°. For the bottom sand layer, unit weight=11 kN/m2; d'= 22°.arrow_forwardplease solve th problem clearlyarrow_forwardFor 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.arrow_forward
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