Rectangular footing (4m x 5m) was supported by a saturated clay layer with a thickness of 5m. If the second layer (below the clay) was a saturated sand. The settlement that could be occurred in this site: a. Is only consolidation settlement b. None of the given answers are correct c. Is a short term settlement d. Is only long term settlement

Rectangular footing (4m x 5m) was supported by a saturated clay layer with a thickness of 5m. If the second layer (below the clay) was a saturated sand. The settlement that could be occurred in this site: a. Is only consolidation settlement b. None of the given answers are correct c. Is a short term settlement d. Is only long term settlement

Principles of Foundation Engineering (MindTap Course List)

9th Edition

ISBN:9781337705028

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter9: Settlement Of Shallow Foundations

Section: Chapter Questions

Problem 9.5P

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4. a) For the footing shown in figure 2, determine the length of the footing (given B 2.0m) for tolerable maximum ultimate settlement due to consolidation of the clay layer is 10 cm. b) Calculate the immediate settlement 3.0m 10.0m 120t 2.0m Sand y 1.60/m¹ U-035 E-30 MPa clay Your 1.950/m¹ u-0.4 E-20 MPa Cc-0.32 e-1.1 Figure 2
2. please give correct answer clay thick 12ft
It is desired to calculate the consolidation settlement of the 6m thick layer shownin the below figure that will result from the load carried by the footing measuring 3mx3m inplan (bottom of footing is 2m below the surface). Assume the clay to be normallyconsolidated. Compute the following: a. Immediate Settlement, Se b. Primary Consolidation Settlemen, Spc. Secondary Consolidation Settlement, Ssd. Total Consolidation Settlement, St of the clay 5 years after the completion of the primarysettlement. The time for the completion of the primary settlement is 3 years. ES = 18 MPaPoisson's Ratio = 0.20 IF = 1.0 Compression Index, Cc = 0.09(LL-10)Secondary Compression Index, Ca = 0.020
A plate load test was conducted using a square plate of 30 cm side, at 2 m depth on loose sand. The plate settled by 8 mm at load intensity of 12 t/m². Determine the settlement of 2 mx 2 m square footing if it has to carry the same load intensity at 2 m depth at this site. Ignore the effect of embedment.
Q-1: The subsoil profile of a proposed site of construction is shown below, a square footing of 2m x 2m carries a load of 1000 kN and is laid with its base at 1m depth below ground surface assuming that post construction settlement in sand is negligble determine the consolidation settlement of clay layer on account of construction. There is geological evidence, clay is NC, use 2 vertical and 1 horizontal for load dispression to estimate the stress increase in clay layer. 1000 KN 2m 2 m 3 m 1m 7 W₁ = 40% G = 2.7 W₁ = 60% Rock Soil Profile Sand y = 16 kN/m³ Sand Y = 20 kN/m³ Clay Y = 19 kN/m³ W.T
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7. It is desired to calculate the consolidation settlement of the 6m thick layer shown in the below figure that will result from the load caried by the footing measuring 3mx3m in plan (bottom of footing is 2m below the surface). Assume the clay to be normally consolidated. Compute the following: a. Immediate Settlement, S. b. Primary Consolidation Settlemen, S, c. Secondary Consolidation Settlement, S̟ d. Total Consolidation Settlement, S, of the clay 5 years after the completion of the primary settlement. The time for the completion of the primary settlement is 3 years. Es = 18 MPa Poisson's Ratio = 0.20 If = 1.0 Соmpression Index,Cc %3D 0.009(LL - 10) Secondary Compression Index, C, = 0. 020
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A 1.8 m square, 2 m deep footing supports a service load of 570 kN. It is supported on a clayey sand. A dilatometer test run at the site has returned the following modulus profile. Compute the footing settlement.
1- 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 consolidation