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 16, Problem 16.6P
The applied load on a shallow square foundation makes an angle of 15° with the vertical. Given: B = 1.83 m, Df = 0.91 m, γ = 18.08 kN/m3,
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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
allowable load. (Use general bearing capacity equation.)
square foundation makes an angle of 10° with the vertical. Use FS
3 and determine the
2 m
6 m
4 m
y = 17.5 kN/m³
4' = 33°
c' = 20 kN/m²
Ysat =
20k N/m³
Groundwater table
Q6. A column foundation (Figure below) is 3 m X 2 m in plan. Given: De = 1.5 m, o = 25°, c=
70 kN/m . Terzaghi's equation and assume general shear failure in soil and FS = 3, determine
the net alowable koad.
y = 17 kN/m
1.5 m
3 m x 2 m
Yat = 19.5 kN/m
Groundwater level
H.Q 1
Consider a rectangular foundation. Given: B = 1.5 m, L = 2.5 m, Df= 1.2
m, H =0.9 m, o' = 40°, c' = 0, and y= 17 kN/m3. Using a factor of safety
of 3, determine the gross allowable load the foundation can carry. Use
Meyerhof equation.
Chapter 16 Solutions
Fundamentals of Geotechnical Engineering (MindTap Course List)
Ch. 16 - Prob. 16.1PCh. 16 - A 2.0 m wide continuous foundation carries a wall...Ch. 16 - Determine the maximum column load that can be...Ch. 16 - A 2.0 m wide strip foundation is placed in sand at...Ch. 16 - A square column foundation has to carry a gross...Ch. 16 - The applied load on a shallow square foundation...Ch. 16 - A column foundation (Figure 16.23) is 3 m 2 m in...Ch. 16 - Prob. 16.8PCh. 16 - A 2 m 3 m spread foundation placed at a depth of...Ch. 16 - An eccentrically loaded foundation is shown in...
Ch. 16 - For an eccentrically loaded continuous foundation...Ch. 16 - The shallow foundation shown in Figure 16.12...Ch. 16 - A mat foundation measuring 14 m 9 m has to be...Ch. 16 - Repeat Problem 16.13 with the following: Mat...Ch. 16 - Prob. 16.15PCh. 16 - For the mat in Problem 16.15, what will be the...Ch. 16 - Prob. 16.17CTPCh. 16 - Prob. 16.18CTPCh. 16 - A 2.0 m 2.0 m square pad footing will be placed...
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- 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 tablearrow_forward3. 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.) 2 m 6 m 4 m y = 17.5 kN/m³ p' = 33° c' = 20 kN/m² Ysat = 20k N/m³ Groundwater tablearrow_forwardA column foundation (Figure P3.5) is 3 m x 2 m in plan. Given: D; = 2 m, o' = 25°, c' = 50 kN/m². Using Eq. (3.23) and FS = 4, determine the net allowable load [see Eq. (3.15)] the foundation could carry. Use bearing capac- ity, shape, and depth factors given in Şection 3.6.arrow_forward
- Problem #3 lơ lag An eccentrically loaded continuous foundation is shown in (Eccentricity in one direction only) e = 0.15 m I Qall y = 17 kN/m³ c' = 0 4'= 36° the figure. Determine the maximum allowable load (Qall) 1.0 m that the foundation can carry. Use Meyerhof's effective area method and FS of 4. B = 2 m Solution: Centerlinearrow_forwardFor a square foundation that is B X B in plan, Df= 2 m; vertical gross allowable load, Qall= 3330 kN; γ= 16,5 kN/m3; φ’= 30°; c’ = 0; and FS= 4. Determine the size of the foundation. Use Eq (16.9)arrow_forwardA 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.arrow_forward
- For a square foundation, according to the information given and the assumption of vertical load, it is desirable to determine the dimensions of the foundation. Use the general formula. D, = 2 m; Qa = 3330 kN, y = 16.5 kN/m'; 6' = 30°; c' = 0; and FS 4.arrow_forwardFor a square foundation that is B × B in plan, D¡ = 2 m; vertical gross allowable load, Qall 3.6 = 3330 kN, y 16.5 kN/m³; ø' = 30°; c' 0; and FS = 4. Determine the size of the foundation. Use Eq. (3.19).arrow_forwardQUESTION #2 A rectangular foundation (B x 1.2B) has to be constructed as shown in Figure. Assume that y-17 kN/m³, Ysat = 20 kN/m³, D1-30°, D2-340, De 2 m, and Dw = 1 m. The gross allowable load with FS = 4 is 750 kN. Determine the size of the foundation by using general bearing capacity equation. Use: Meyerhof's bearing capacity and depth factors, DeBeer's shape factors. Qall 1.0 m 1.0 m G.W.L B x 1.2B Y = 17.0 kN/m² c=0 $1 = 30° Ysat = 20.0 kN/m² c = 0 kN/m² $2= 34°arrow_forward
- 10. A flexible foundation is subjected to a uniformly distributed load of q-500 kN/m². Table 3 could be useful. Determine the increase in vertical stress, in kPa, Aoz at a depth of z=3m under point F. B 4m 3m 6m E 10m Table 10.3 Variation of I, with m and n m 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 0.1 0.0047 0.0092 0.0270 0.0279 0.2 0.0132 0.0092 0.0179 0.0259 0.0132 0.0259 0.0374 0.0222 0.0242 0.0435 0.0474 0.0629 0.0686 0.0258 0.0504 0.0528 0.0547 0.3 0.0731 0.0766 0.0794 0.4 0.1013 0.5 0.0198 0.0387 0.1202 0.6 0.0222 0.0435 0.7 0.0242 0.0474 0.0947 0.1069 0.1168 0.1247 0.1311 0.1361 0.1365 0.1436 0.1491 0.1537 0.1598 0.0168 0.0198 0.0328 0.0387 0.0474 0.0559 0.0168 0.0328 0.0474 0.0602 0.0711 0.0801 0.0873 0.0931 0.0977 0.0559 0.0711 0.0840 0.0947 0.1034 0.1104 0.1158 0.0629 0.0801 0.0686 0.0873 0.1034 0.8 0.0258 0.0504 0.0731 0.0931 0.1104 0.9 0.0270 0.0528 0.0766 0.0977 0.1158 0.0794 0.1013 0.1202 0.0832 0.1263 1.4 0.1300 1.6 0.0306 0.0599 0.0871 0.1114 0.1324 1.8 0.0309 0.0606…arrow_forwardA 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_forwardQuestion 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 CamScannerarrow_forward
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