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 3, Problem 3.19P
To determine
Find the overconsolidation ratio
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
a. A vane shear test was conducted in a saturated clay. The height and diameter of the rectangular vane were 4 in. and 2 in., respectively. During the test, the maximum torque applied was 230 lb-in. Determine the undrained shear strength of the clay. b. The clay soil described in part (a) has a liquid limit of 58 and a plastic limit of 29. What would be the corrected undrained shear strength of the clay for design purposes? Use Bjerrum’s relationship for λ
a. A vane shear test was conducted in a saturated clay. The height and diameter of the rectangular vane were 4 in. and 2 in., respectively. During the test, the maximum torque applied was 230 lb-in. Determine the undrained shear strength of the clay. b. The clay soil described in part (a) has a liquid limit of 58 and a plastic limit of 29. What would be the corrected undrained shear strength of the clay for design purposes? Use Bjerrum’s relationship for λ [Eq. (3.40a)].
Vane shear tests were conducted in the clay layer. The vane dimensions were 63.5 mm
(D) x 127 mm (H). For the test at A, the torque required to cause failure was 0.051 Nm. For
the clay, given: liquid limit = 46 and plastic limit = 21.
(a) Estimate the undrained cohesion of the clay for use in the design by using Bjerrum's
correction. A = 1.7 – 0.54 log[PI(%)]
(b) Estimate the overconsolidation ratio of the clay. Use Eqations below.
Cu(field)
B-
σο
B = 22[PI(%)]-048
OCR
%3|
Dry sand
y = 16.5 kN/m³
·1.5 m
Groundwater
table
Sand
1.5 m
Ysat = 19 kN/m³
N60
5
:1.5 m
• 8
Clay
= 16.8 kN/m³
1.5 m
Ysat
* A • 8
1.5 m
• 9
1.5 m
10
Sand
Chapter 3 Solutions
Bundle: Principles Of Foundation Engineering, 9th + Mindtap Engineering, 1 Term (6 Months) Printed Access Card
Ch. 3 - Prob. 3.1PCh. 3 - Prob. 3.2PCh. 3 - Prob. 3.3PCh. 3 - Refer to Figure P3.3. Use Eqs. (3.10) and (3.11)...Ch. 3 - Prob. 3.5PCh. 3 - Prob. 3.6PCh. 3 - Prob. 3.7PCh. 3 - Prob. 3.8PCh. 3 - Prob. 3.9PCh. 3 - Prob. 3.10P
Ch. 3 - Prob. 3.11PCh. 3 - Prob. 3.12PCh. 3 - Prob. 3.13PCh. 3 - Prob. 3.14PCh. 3 - Prob. 3.15PCh. 3 - Prob. 3.16PCh. 3 - Prob. 3.17PCh. 3 - Prob. 3.18PCh. 3 - Prob. 3.19PCh. 3 - Prob. 3.20PCh. 3 - Prob. 3.21PCh. 3 - Prob. 3.22PCh. 3 - Prob. 3.23PCh. 3 - Prob. 3.24PCh. 3 - Prob. 3.25PCh. 3 - Prob. 3.26PCh. 3 - Prob. 3.27PCh. 3 - Prob. 3.28PCh. 3 - Prob. 3.29PCh. 3 - Prob. 3.30PCh. 3 - Prob. 3.31P
Knowledge Booster
Similar questions
- Take o, = 580 kPa (Figure 1) Express your answer to three significant figures and include the appropriate units. HÀ ? o, = Value Units Submit Request Answer Figure Part B Determine the shear stress acting on the inclined plane AB. Express your answer to three significant figures and include the appropriate units. В HA ? 30° Value Units Aarrow_forward11. Consider the downward flow of water through a layer of sand in the tank shown. (see picture below) Void ratio of the soil = 0.52 Specific Gravity = 2.70 Compute the value of h1. (Answer: 0.436) Compute the effective stress at A. (Answer: 17.44 kPa) Compute the effective stress at B. (Answer: 31.98 kPa) Compute the seepage force per unit volume. (Answer: 3.57 kN/m3)arrow_forwardRefer to Figure P3.3. Vane shear tests were conducted in theclay layer. The vane (tapered) dimensions were 63.5 mm(d) 3 127 mm (h), iB 5 iT 5 458 (see Figure 3.23). For the test at A, the torque required to cause failure was 51 N ? m.For the clay, given: liquid limit 5 46 and plastic limit 5 21.Estimate the undrainedcohesion of the clay for use in thedesign by usingBjerrum’s l relationshiparrow_forward
- Problem 3. The strain rosette shown has angles 0, = 0° (aligned with the x-axis), 0, = 60°, and 0, = 120°, We attach it to a body and then load the body. The strain m m rosette reports the following values: E = 500µ, E, =1200µ, and ɛ. 100µ- m Recall for a delta rosette: Ex = Ea %3D 1 Ey 3 =(26, +26, - 8.) %3D 2 Yy = J a Sketch Mohr's Circle for Strain. Indicate the following Y Max 20,, &,, E2, and- InPlane on your sketch the followinge 2 Determine the following: E2. Op. YMax InPlanearrow_forward1. Triaxial compression tests are done on quartzite rocks, the results are shown below. (0₁+03)/2 -964.25 14500 19575 23200 29000 43210 63075 psi (01-03)/2 964.25 14500 18850 21750 26100 35960 48575 psi Comment on the applicability of each of the Mohr-Coulomb, Griffith, and Hoek-Brown criteria for the testing results.arrow_forward1.A dry sand is known to have an angle of internal friction of 29. A triaxial test is planned, where the confining pressure will be 41 kPa. What is the maximum axial stress, in kPa, (major principal stress) that can be applied? Calculate the value to 1 decimal place. Do not provide units in your answer. 2.A clay soil is subjected to a triaxial test under unconsolidated-undrained conditions. At failure, the major and minor principal stresses are 8401 psf and 4875 psf, respectively. What is the shear strength of this soil if the confining pressure is doubled? Provide your answer in psf with no decimals.arrow_forward
- A rectangular distributed load of 100 kPa is applied to the soil surface. An additional circular distributed load of 200 kPa is applied on one side of the previous load. Determine the vertical effective stress 6 m below point A due to the application of both loads. R= 6 m 6 m 6 m 6 m 200 kPa 6 m 6 m 100 kPa 6 marrow_forwardA vane shear test was conducted in a saturated clay. The height and diameter of the rectangular vane were 4 in. and 2 in., respectively. During the test, the maximum torque applied was 230 lb-in. The clay soil has a undrained shear strength of 7.844 psi. It has a liquid limi of 58 and a plasic limi o 29. What would be the corrected undrained shear strength of the clay for design purposes? Using Bjerum's relationship for λ. λ = 1.7 - 0.54 log[PI(%)]arrow_forwarda. A vane shear test was conducted in a saturated clay. Theheight and diameter of the rectangular vane were 4 in.and 2 in., respectively. During the test, the maximumtorque applied was 230 lb ? in. Determine the undrainedshear strength of the clay.b. The clay soil described in part (a) has a liquid limit of58 and a plastic limit of 29. What would be the correctedundrained shear strength of the clay for design purposes?Use Bjerrum’s relationship for l [Eq. (3.40a)]. Determine the overconsolidation ratiofor the clay. Use Eqs. (3.42) and (3.45). Use s9o 5 1340 lb/ft2.arrow_forward
- A D. A- 业。。 T Normal 1Ingen m. Overskrift 1 Overskrift 2 Tittel Undertittel = A Velg Avsnitt Stiler 5 Redigering Stress path concepts 4. The initial mean effective stress on a soil is p'o and the deviatoric stress is q = 0. If the soil is a linear, isotropic, elastic material, plot the total and effective stress paths for the following axisymmetric undrained loading condition: a.) Ασ 0.5Δ01, Β ) Δσε -0.5 Δσι. (see example 8.2). D Fokus ritannia) e InternalNormal Tilgjengelighet: Undersak 11°C Sky Ho F10 F11 F12 F5 F8 F9 F3 F6 F7 F4 6. 8. 24 { T Y UI 5 #3Earrow_forwardA concentrated load of 1000 kN is applied at the ground surface. Compute the vertical stress at a depth of 4 m below the load. Use Boussinesq's equation.equation. Select one: O a. 57.75 kN/m2 Ob. 17 kN/m2 Oc. 67 kN/m2 O d. 30 kN/m2arrow_forwardA shear vane of 7.5 cm diameter and 11.0 cm length was used to measure the shear strength of soft clay. A torque of 600 kg-cm was required to shear the soil. The vane was then rotated rapidly to cause remoudling of the soil. The torque required in the remoulded state was 200 kg-cm. The shear strength and sensitivity of the soil are respectively.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