Fundamentals of Geotechnical Engineering (MindTap Course List)
5th Edition
ISBN: 9781305635180
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
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Chapter 17, Problem 17.12P
To determine
Find the settlement of the footing in 20 years.
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A circular footing with a 1.5 m diameter is to be
constructed 1.22 m
below the ground surface. The subsoil consists of
a uniform deposit
of dense soil having the following strength
parameters:
Angle of Friction = 250 Nc = 24.1 Nq = 13.1 Ny = 9.1
Cohesion = 48 kN/m2
Unit weight of soil = 20.12 kN/m2
The groundwater table is at a great depth and its
effect can be
ignored.
Determine the following:
a) Ultimate bearing Capacity of the soil
A square footing 2.8 m X 2.8 m is built on a homogeneous bed of sand of density 18 kN/m3 and ϕ = 36o. If the depth of foundation is 1.8 m, determine the safe load that can be applied on the footing.
Note: Use Meyerhof's equation
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Chapter 17 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
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- A footing 3 m x 1.5 m in plan transmits a pressure of 160 kN/m² on a cohesive soil having E = 8 x 104 kN/m² and μ = 0.48. What is the immediate settlement at the centre, assuming the footing to be flexible? (Take Iw= 1.52) Warrow_forwardA 2.0 m x 2.0 m square pad footing will be placed in a normally consolidated clay soil to carry a column load Q. The depth of the footing is 1.0 m. The soil parameters are: c’= 0, ϕ’= 26º, γ =19kN/m3 , and cu = 60 kN/m2. Determine the maximum possible value for Q, considering short-term and long-term stability of the footing.arrow_forwardQ- Determine the width of strip footing to carry a load of 750 kN/m at a depth of 1.6 m in a c-o soil having unit weight of 18 kN/m² and c = 20 kN/m², p=25. Take FOS = 3 and for p=25. (Assume general shear failure) No = 25.1, N₁ = 12.7 and Ny=9.7arrow_forward
- Foundation, engg.arrow_forwardA 4m x 5m rectangular footing resting at ground level carries a uniform load of 550 kPa. Compute the vertical stress increment at a depth of 8.0m below the ground surface. a. Use 2:1 Approximation Method (70.51) b. Use 60 Approximation Method (58.36)arrow_forwardQuiz-2: For the strip footing shown. Calculate the reduction percentage in the bearing capacity of the soil profile when the groundwater rises to the footing base level. Use Meyerhof's equation P = 723 kN/m 0.5 m Yt = 17.0 kN/m3 B = 3.0 m Pure Sand Ywet 18.0 kN/m3 5.9 m Ø = 36.0° W.T. Ysat = 18.0 kN/m3arrow_forward
- Solve using eurocode 7, design approach 1, combination 2arrow_forwardCheck the adequacy of the (3*8.5*1) m footing to resist the applied loads. Use Vesic's equation and FSBearing= 3. 2.25 m Тon V 80 1 m - Y = 14.5 kN/m $ =25°arrow_forwardA square footing 2.8 m X 2.8 m is constructed on a uniform bed of sand with a density of 18 kN/m3 and a slope of = 36o. Determine the safe load that may be applied to the footing if the foundation depth is 1.8 m.arrow_forward
- Q: VERTICAL STRESS INCREMENT UNDER CORNER OF RECTANGULAR FOOTING Ex1: A footing is uniformly loaded with q = 100 kN/m2 as shown in the figure. Compute the vertical stress increments under Points A, B, and C at z = 10 m. 13.5 m 7.0 m Footing 12 m (Plane view) 6.0 marrow_forwardI need help solving this exercise step by step, please.arrow_forwardA footing of size 2m×2m transferring a pressure of 200 kN/m², is placed at a depth of 1.5 m below the ground as shown in the figure (not drawn to the scale). The clay stratum is normally consolidated. The clay has specific gravity of 2.65 and compression index of 0.3. 1.5m 1m 1.5 m 200 kN/m² Silty sand Clay Ya =15kN/m³ Y sat = 18kN/m³ Y sat = 17 kN/m³ GWT $0.5 m Dense sand Considering 2:1 (vertical to horizontal) method of load distribution and Y₁ = 10kN/m³, the primary consolida- tion settlement (in mm, round off to two decimal places) of the clay stratum isarrow_forward
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