Two points on a curve for a normally consolidated clay have the following coordinates. Point 1 : e1 = 0.7, Pl = 2089 lb/ft2 ;Point 2 e2 = 0.6, p2 = 6266 lb/ft2. If the average overburden pressure on a 20 ft thick clay layer is 3133 lb/ft2, how much settlement in inches will the clay layer experience due to an induced stress of 3340 lb/ft2 at its mid-depth. a.9.55 b.24.32 c.12.93 d.17.15

Two points on a curve for a normally consolidated clay have the following coordinates. Point 1 : e1 = 0.7, Pl = 2089 lb/ft2 ;Point 2 e2 = 0.6, p2 = 6266 lb/ft2. If the average overburden pressure on a 20 ft thick clay layer is 3133 lb/ft2, how much settlement in inches will the clay layer experience due to an induced stress of 3340 lb/ft2 at its mid-depth. a.9.55 b.24.32 c.12.93 d.17.15

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter9: Consolidation

Section: Chapter Questions

Problem 9.20CTP

See similar textbooks

Similar questions

the results of a consolidated undrained test, in which o3 = 392 kN/m?, %3D on a normally consolidated clay are given next: Axial Strain, % Ao, kN/m2 Ud, kN/m? 0.5 156 99 0.75 196 120 1 226 132 1.3 235 147 2 250 161 3 245 170 4 240 173 4.5 235 175 Draw the kf line in a p' vs q' diagram. Also draw the stress path for the test in the diagram.
A normally consolidated clay layer of 4 m in thikness has overburden stress of 96.7 kPa and final effective stress of 154.3 kPa. If Cr = 0.22 and void ratio = 1.1 the consolidation settlement would be: %3D O A. 173.0 mm O B. 178.3 mm O C. 172.3 mm O D. 175.3 mm QUESTION 12 The liquid and plastic limits of a clay are 48% and 23% respectively. The specific gravity is 2.7. Estimate the following: - Cc - Cr Then select the correct answers. O A. Cc = 0.33 Cr = 0.66 O B. Cc = 0.34 Cr = 0.06 O C. Cc = 0.30 Cr = 0.16 O D. Cc = 0.06 Cr = 0.34
A normally consolidated clay has the following values void ratio e = 1.2, k(cm/sec) = 0.2 x 10^-6 And void ratio e = 1.9, 0.91x10^-6. Estimate the magnitude k of the clay at a void ratio (e) of 0.9. Use k = C (e^n)/1+e.
The results of a consolidated undrained test, in which o3 = 392 kN/m?, on a normally consolidated clay are given as: Axial strain (%) Ao(kN/m²) ug(kN/m²) 0.5 0.75 156 196 226 235 250 245 240 235 99 120 132 147 161 170 173 175 1.3 2 3 4 4.5 Draw the K; line in a P' versus q' diagram. Also draw the s tress path for this test in the diagram.
For the stressed soil element shown 1. Det. the major principal stress 2. Find the minor principal stress 3. Det. the normal stress on plane AB oy = 280kpa %3D 40kpa 40kpa Ox = 100 kpa Ox = 100kpa 40kpa 200 40kpa A Oy = 280 kpa
IV. A soil element is shown in Figure 3. (use equations) 130 kN/m² +35kN/m² 30⁰ 60 kN/m² 10 11. 12 + + B SITY FICAT 35 kN/m² Figure 3 What is the value of the maximum stress in kPa? What is the value of the normal stress acting at the plane AB in kPa? What is the value of the shear stress acting at the plane AB in kPa?
2.9 A normally consolidated clay has the following values. Void ratio, e k (cm/sec) 0.2 × 10 0.91 x 10-6 1.2 1.9 Estimate the magnitude of k of the clay at a void ratio (e) of 0,9. Use Eq. (2,41).
The following data are given for normally consolidated clay: Thickness=2.6m Primary Cc=0.3 Secondary Cc=0.02 e=0.8 Average Pressure=127 kPa Change in pressure (vertical) =46 kPa Determine the following 1. Primary Consolidation Settlement (Ans. 58.17mm) 2. Secondary Settlement five years after the completion of the primary settlement. The time for completion of primary settlement is 1.5 years. (Ans. 15.4mm)
SITUATION 2: A normally consolidated clay layer 3m thíck has a void ratio of 1.10. Liquid Limit is equal to 40 and the average effective stress on the clay layer was 80 kPa. The average stress on it is increased to 120 kPa as a result of construction of a foundation. 13. Compute for the consolidation settlement that will occur on the clay layer. a. 17 mm b. 45 mm C. 68 mm d. 57 mm 14. Compute for the consolidation settlement that will occur on the clay layer if pre- consolidation pressure is 96 kPa. a. 68 mm b. 57 mm C. 17 mm d. 45 mm 15. Compute for the consolidation settlement that will occur on the clay layer if pre- consolidation pressure is 130 kPa. a. 45 mm c. 57 mm b. 68 mm d. 17 mm
A normally consolidated clay has the following values. Void ratio, e k (cm/sec) 1.5 0.2 x 10-6 0.91 x 10-6 Estimate the magnitude k of the clay at a void ratio (e) of 0.9. Use 1.9 en k = C, 1+e (Enter your answer to three significant figures.) k cm/sec
11.12 A 2-m clay layer in the field has a current effective stress, oó= 70 kN/m?. There is a net stress increase, Ao = 180 kN/m², due to a foundation load. Calculate the expected primary consolidation settlement. The results of a consolidation test on the clay are given below. o' (kN/m) 0.98 12 0.94 50 0.82 200 0.73 400 ©Cngage lamng 2014
In a tri-axial test for a normally consolidated soil, the deviator stress is equal to 700 kPa and the angle of failure plane makes with the major principal plane is equal to 60 degrees. shearing stress at the failure plane = 303.11 kPa determine the normal stress at the failure a. 477 kPa b. 525 kPa c. 493 kPa d. 545 kPa determine the confining pressure. a. 350 kPa b. 385 kPa c. 405 kPa d. 425 kPa