2.17 A clay specimen 25 mm thick (drained at top only) was tested in the laboratory. For a given load increment, the time for 60% consolidation was 6 min. How long will it take for 50% consolidation for a similar clay layer in the field that is 2.45 m thick and drained on both sides?

2.17 A clay specimen 25 mm thick (drained at top only) was tested in the laboratory. For a given load increment, the time for 60% consolidation was 6 min. How long will it take for 50% consolidation for a similar clay layer in the field that is 2.45 m thick and drained on both sides?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: A cylindrical water tank weighing 1,000,000 N with a diameter of 3.5 m is expected to be placed on a…

A: The given data is: Weight of Cylindrical tank (W) = 1,000,000 N Diameter of tank (d) = 3.5 m…

Q: How long will it take for 50% of the total settlement to occur in laboratory specimen of the clay…

A: Degree of consolidation = U= 50%Cv= 0.25m²/dayDiameter of specimen = 6.35cmH= 2.54cm

Q: The time required for a 50% consolidation of a 25mm thick layer drained both sides is 2 min 20…

A: Given: For 50% consolidation of a 25 mm thick layer having drainage both side , time required is…

Q: A clay layer 5 m thick has double drainage. It was consolidated under a load of 127.5 kN/m2. The…

A: Given Data:Thickness of layer=5mdouble drainageLoad=127.5 kN/m2Increased load=197.5 kN/m2Coefficient…

Q: The initial and final void ratios of a clay sample in a consolidation test are 1 and 0.5,…

Q: A 3-m thick layer of saturated clay (two-way drainage) under a surcharge loading underwent 90%…

A: Thickness of saturated clay layer, H= 3 m Drainage condition = 2 way drainage Degree of…

Q: The time required for a 50% consolidation of a 25 mm thick layer (drained at both and bottom) in the…

Q: Question attached

A: The test results related to consolidation are 1)The relation between dial gauge reading and time…

Q: A clay layer 5 m thick has double drainage. It was consolidated under a load of 127.5 kN/m2. The…

A: Given Data: Thickness of layer=5m double drainage Load=127.5 kN/m2 Increased load=197.5 kN/m2…

Q: The time required for 50% consolidation of a 20 mm- thick clay layer(drained at both top and bottom)…

A: It is required to determine the time of consolidation using the relation. Tv=CvtH2 Here Tv is the…

Q: A 12 ft. sandy fill is to be added to the saturated clay site shown below. The moist unit weight of…

A: Before loadingσ'=112.4-62.4×10=500 lb/ft2After loadingσ'=500+115×12=1880 lb/ft2σc'=1000 lb/ft2

Q: Q1- In an Odometer test a specimen of saturated clay 26 mm thick reaches 58% consolidation in 31…

Q: A fully saturated clay specimen is placed in a consolidometer and subjected to a loading of 200…

Q: Q: For the soil profile shown in figure. Determine the: a) Final consolidation settlement. b) Time…

A: We are authorized to answer three subparts at a time, since you have not mentioned which subparts…

Concept explainers

Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.

Question

2.17
A clay specimen 25 mm thick (drained at top only) was
tested in the laboratory. For a given load increment, the time
for 60% consolidation was 6 min. How long will it take for
50% consolidation for a similar clay layer in the field that is
2.45 m thick and drained on both sides?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Objective of the problem

VIEW

Step 2: Calculate the coefficient of consolidation

VIEW

Step 3: Calculate the time of field consolidation

VIEW

Solution

VIEW

Step by step

Solved in 4 steps with 8 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

A laboratory sample of clay 2 cm thick took 15 min to attain 60 percent consolidation under a double drainage condition. a. What time will be required to attain the same degree of consolidation for a clay layer 3 m thick under the foundation of a building for a similar loading and drainage condition? b. How long (in days) will it take in the field for 30% primary consolidation to occur?
Q1- In an Odometer test a specimen of saturated clay 26 mm thick reaches58% consolidation in 31 min. How long would it take a layer of this clay 5.8 m thick to reach the same degree of consolidation under the same stress and drainage condition? How long would it take the layer to reach 68% consolidation? What is the degree of consolidation after 2 and 28 years?
Kindly answe the question in the image given below (Q3)
Q: For the soil profile shown in figure. Determine the: a) Final consolidation settlement. b) Time (in month) required for 50% consolidation. c) Time (in month) required for the settlement to be (32) mm. d) Effective stress at the mid of the clay layer immediately after applying the load. e) Pore water pressure at the mid of the clay at the end of consolidation. f) Time (in month) required for full consolidation. g) value of maximum preconsolidation pressure (õp)at which the clay is considered as normally consolidated clay. Note: use yw= 10 kN/m³ Surcharge Aq.= 60 kPa El. 0 XXX Sand y= 15 kN/m³ El. -3 m Sand y= 17 kN/ m³ El. -6 m Clay Y. = 19.5 kN/m³ e = 0.81 C, = 1.5 m²/ yr O.C.R =1.6 C. = 0.15 C, = 0.02 El. -10 m Sand
A clay layer 5 m thick has double drainage. It was consolidated under a load of 127.5 kN/m2. The load is increased to 197.5 kN/m2. The coefficient of volume compressibility is 5.79 x 10^-4 m2/Kn and value of k = 1.6 x 10^-8 m/min. If the test sample is 2 cm thick and attains 100% consolidation in 24 hours, what is the time in days taken for 100% consolidation in the actual layer? a. 62,500 b. 60,000 c. 65,000 d.67,500
Laboratory test on a 35 mm thick clay specimen drained just at the top show that 60% consolidation takes place 9.5 minutes. a) How long will it take for a similar clay layer in the field, 3,6 m thick, but drained at both the top and bottom, to undergo 60% consolidation? b) Find the time required for the clay layer in the field as described in part (a) above to reach 70% consolidation,