Bundle: Principles Of Foundation Engineering, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
9th Edition
ISBN: 9781337947060
Author: Braja M. Das, Nagaratnam Sivakugan
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 10, Problem 10.4P
To determine
Find the allowable net pressure using Equation 9.51 and 10.14.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 10 m x 6 m mat foundation is placed at 2.0 m depth in sand where the average value of N60 is 23. Determine the allowable net pressure that would limit the settlement to 75 mm, using the following equations.
10.6
X=30
Chapter 10 Solutions
Bundle: Principles Of Foundation Engineering, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
Ch. 10 - Refer to the rectangular combined footing in...Ch. 10 - Prob. 10.2PCh. 10 - Prob. 10.3PCh. 10 - Prob. 10.4PCh. 10 - Prob. 10.5PCh. 10 - Prob. 10.6PCh. 10 - Prob. 10.7PCh. 10 - Prob. 10.8PCh. 10 - A plate loading test was carried out on a medium...Ch. 10 - A 300 mm 450 mm plate was used in carrying out a...
Knowledge Booster
Similar questions
- Please solve with a good explantion and step by step solutionarrow_forwardQ3. Two meters of compacted fill (y= 20 kN/m³) is placed over a large area (Figure 4). A rectangular foundation of size 4 m x 5 m is constructed at the site with its base located at the existing ground surface. GWT is found at a depth of 3 m below the existing ground surface. a). Calculate and plot the in-situ vertical effective stress profile to a depth of 16 m below the existing ground surface prior to fill and footing placement. Use points with z = +2, +1, 0, -1, -2, -3, -5, -10, -13, -16 m (with z measured from the existing ground surface). b). Calculate and plot the additional effective stress due to the fill to a depth of 16 m. Use the same points as in part a). c). If the load applied on the foundation is 4 MN, calculate and plot the effective stress increase due to the footing to a depth of 16 m. Use the 2:1 approximate method and the same points as in part a). Summarize your calculations in an Excel spreadsheet and present sample calculations for z = 0, -3, -10 and -16 m (with…arrow_forward2 m 3 m 3 m 1 m 5. Refer to Prob. 3. Determine the vertical stress at a depth of 2.5 m below point E in Fig. Prob. 3. All the other data given in Prob. 3 remain the same. 6. A rectangular footing 6x3 m carries a uniform pressure of 300 KN/m2 on the surface of of a soil mass. Determine the vertical stress at a depth of 4.5 m below the surface on the center line 1.0 m inside the long edge of the foundation. 7. A tower is founded on a circular ring type foundation. The width of the ring is 4 m and its internal radius is 8m. Assuming the distributed load per unit area as 300 KN/m2, determine the vertical pressure at a depth of 6 m below the center of the foundation. The footing is founded at a depth of 2.5m below the ground surface. 8. The L-shaped area shown in figures carries a 96KN/m2 uniform load. Find the vertical increment due to the structure load at a depth of 8m below comers A and E. Sm 4m 6.5m 4m E- 9. The plan of a rectangular loaded area is shown in the figure. The uniformly…arrow_forward
- The soil profile at a road construction site is as shown in figure (not to scale). A large embankment is to be constructed at the site. The ground water table (GWT) is located at the surface of the clay layers, and the capillary rise in the sandy soil is negligible. The effective stress at the middle of the clay layer after the application of the embankment loading is 180 kN/m². Take unit weight of water, Yw = 9.81 kN/m3. Embankment load boudi Sand GWT 2m y = 18.5 kN° it enit Clay Specific gravity, G̟ = 2.65 Water content, w = 45% Compession index, C. = 0.25 6m %3D %3D Impermeable layer The primary consolidation settlement (in m, round off to two decimal places) of the clay layer resulting from this loading will bearrow_forwardCalculate the settlement of the 10-ft-thick clay layer that will result from the load carried by a 5-ft-square footing. The clay is normally consolidated. Use the 2:1 method to calculate the average increase of effective pressure in the clay layer. 10 ft 10 ft 10 ft 5 ft ↓ Dry sand Footing size 5 ft x 5ft Sand Clay Ydry = 100 pcf Groundwater table Ysat = 120 pcf Ysat = 110 pcf % = 1.0 LL=40arrow_forwardA loaded footing ABCD with q = 200 kN/m2 on the ground is shown in Figure 8.19. Compute Ao, under Points E, F, B, and G at a depth of 5 m. 3 m 2 m q = 200 kN/m? 2 m A F Вarrow_forward
- A rectangular footing 6 x 3 m carries a uniform pressure of 300 kN/m2 on the surface of a soil mass. Determine the vertical stress at a depth of 4.5 m below the surface on the center line 1.0 m inside the long edge of the foundation.arrow_forward1- Depth of B.H ==> depth of borehole 2- Bearing capacity for the soil under the footing. ==> hansen equation 3- Immediate settlement for the soil under footing. ==> Si 4- Find the time required for 100% degree of consolidationarrow_forwardA circular footing 3 m in diameter applies a uniform surface pressure of 150 kPa. Determine the vertical stress increase beneath the center at 2 m deep from the ground level.arrow_forward
- A footing 3 m square carries a gross pressure of 350 kN/m2 at a depth of 1.2 m in sand. The saturated unit weight of sand is 20kN/m3 and the unit weight above the water table is 17KN/m3. The shear strength parameters are c' = 0 and o = 30°. (For O' = 30°, N = 22 and N. = 20 ). Determine the factor of safety with respect of shear failure for the following cases: %3D b. %3D %3D (a) water table is 5m below ground level. (b) water table is at 1.2 m below ground level.arrow_forwardابعاد H.W: A rectangular footing of 3+ 4.6m is to be constructed on a silty-sand with D E, 8500kPa and μ = 0.3 at depth 5m below N.G.S, to carry a uniform pressure = of 180kPa. Estimate the elastic settlement. Assume a rock layer is at depth 8m below N.G.S. Ans. (24mm) Si Solutionsarrow_forward3. Point A lies in a clayey sand layer with ' = 38, c' = 10 kPa, and Ko = 0.5. The ground surface is flat. A planned construction operation will cause the vertical effective stress at point A to reach 80 kPa. a. Use a compass to draw the expected MC for point A (after construction) on the space shown on the right. b. Will point A reach failure? Explain your answer with one sentence.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Principles of Foundation Engineering (MindTap Cou...Civil EngineeringISBN:9781337705028Author:Braja M. Das, Nagaratnam SivakuganPublisher:Cengage Learning
Principles of Foundation Engineering (MindTap Cou...
Civil Engineering
ISBN:9781337705028
Author:Braja M. Das, Nagaratnam Sivakugan
Publisher:Cengage Learning