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?

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter11: Compressibility Of Soil

Section: Chapter Questions

Problem 11.12P

See similar textbooks

Related questions

Q: 18. Water flows through a horizontal Venturi meter having an inlet diameter of 30 cm and throat of…

A: The objective of the question is to calculate the discharge through a Venturi meter given the inlet…

Q: Determine the resultant internal loadings acting on the cross section through point C. Assume the…

Q: A lake with a surface area of 1250 acres was monitored over a period of time. During a one-month…

Q: the vertical stress at a point P at a depth of 2.5 under The centre of the circular area of radius…

A: qo=100 kN/mPoint P, directly under the load at depth , r=0, z=2.5mPoint Q, r=2.5m , z=2.5mradius of…

Q: ISOLVE FOR THE MOMENT 3 kipft 2f+ 2f+ 30 kip aft FOR CACH to kip aft POINT 12 kip aft F lakip

Q: (a). An anaerobic rectangular waste stabilization pond is treating a poultry wastewater with the…

Q: For the truss structure shown, express the position vector r AC from point A to point C in terms of…

Q: Simply-supported beams with overhangs 5 kN/m -2m² B RB = 8.75 kN 8 m R=11.25 kN 10 kN -2m- D

Q: ∆у = ду 5WL3 384Е (5 ×3758.0698kg x33m3) (384 X200GPa x39.2x106 mm4

Q: how much salt (NaCl) is carried by a river flowing at 25.0 m3/s and containing 40.0 mg/L? Give…

Q: -15 The 800-lb load is being hoi- using the motor M, which has a we the resultant internal loadings…

Q: Draw the total stresses distribution and compute the total force and its location, acting on a 12 m…

Q: a. Find the risk of liquefaction for each soil layer (at the mid-point of layers) b. Determine the…

A: Risk of Liquefaction:Sand: The Risk of Liquefaction for the sand layer is low as the groundwater…

Q: Concentrations of Pb, Cu, and Mn in rainwater collected in Minneapolis were found to be 9.5, 2.0,…

Q: A 0.5 m diameter 20 m high stack releases gases at 500 K at a rate of 10 g/s into a steady 1.0 m/s…

A: d = Diameter of stack = 0.5 mh = height of stack = 20 mTs = Stack temperature = 500 KQ = Rate of…

Q: Dead load on beams Consider the plan shown in the figure below. Assume a total dead load of 50…

Q: 30 KN HA 40 KN 30 20 m hinged 30% 30% 30° 30 20 m 15 KN The vertical reaction at support A is The…

A: Given dataHorizontal component of 30kN =30×Cos(30°) H30 = 25.981 kNVertical component of 30kN =…

Q: Exercise 1.10: Draw the Isometric view from the provided views (Front, Top, Right). Note: Third…

A: Isometric view from the given orthographic projection.

Q: 12-1M. Determine the forces in the members of the truss in Figure 12-11M. 30 kN. A 30 kN do 60 kN do…

Q: 3 Find the critical load for the following columns if EI/L² = 120 kN P-- EI, L EI, L 77777 : محمدی

Q: Plot a histogram for concrete strength and discuss the characteristics. The number of bins can be…

A: From the given data set of concrete strength.

Q: 2.48 A spherical soap bubble has an inside radius R, a film thickness t, and a surface tension o.…

Q: 24. Reservoir A and B have elevations of 100 m and 160 mm respectively. A pump is installed near…

Q: 19. A tank in a shape of an inverted cone having a radius of 1 m and a height of 3 m is filled with…

Q: 1. The pipe system shown below, use n = 0.011. Use conventional solution A) Compute the discharge…

Q: ду 5WL3 384EI (5×4369.43722kg x 33m3) 384 х 200GPах 188 × 106 mm

Q: A container of volume 2.83 X 10-3 m3 weighs 9.8 N. Dry sand was poured to fill the container. The…

A: V = 2.83 x 10-3 m3 Wc = 9.8 NW = 52.3 NGs = 2.7

Q: In the following structure, consisting of a rigid body DBC and a bar AB with a diameter of 24 mm,…

A: bar AB with a diameter of 24 mm

Q: munity is now achieving a 25 percent by weight separation of wastes he following items: mixed paper,…

Q: A student is concerned with the amount of air pollution students are exposed to in the school’s…

A: The objective of the given scenario is to enhance the reliability of an investigation assessing…

Q: Dead load on girders Consider the plan shown in the figure below. Assume a total dead load of 70…

Q: and vertical components of force at the pin A, and the reaction at the rocker B of the curved beam.…

A: The multiple forces that are being applied on the body that is in equilibrium along any direction is…

Q: 3-49. Determine the maximum mass of the crate so that the tension developed in any cable does not…

A: T = 3 kNWe need to determine maximum mass of crate

Q: 1-39 The lever is held to the fixed shaft using a tapered pin AB, which has a mean diameter of 6 mm.…

A: Given:Pin AB mean diameter,dm=6 mm

Q: Problem 1. (15pts) The specific gravity of an unknown fluid is 0.85. Given a mass of 1kg of the…

A: The objective of the question is to determine the density, volume, and specific weight of an unknown…

Q: Compute the roots of the auxiliary equation (m² - 4) (m² - 1) - 0.

A: Lets solve the quadratic equation,(m2 - 4)(m2 -1)=0Firstly expand and simplify the…

Q: 4) Draw the shear and moment curves and sketch the deflected shape. E P = 36 kips 2' 31 F P= 24 kips…

A: Beam is givenpin supporetd at A and roller supported at DFINDSFD , BMD and deflceted shape of the…

Q: Referring to the same river as the previous question, how many minutes does it take before the…

Q: Exercise 1.9: Draw the Isometric view from the provided views (Front, Top, Right). Note: Third Angle…

A: Orthographic projections are given.To draw : isometric projection.

Q: Consider the plan shown in the figure below. Assume a total dead load of 50 lb/ft2 in the floor (do…

Q: EXAMPLE 4.1: RATIO OF CLEAR AREA TO TOTAL AREA • A bar rack has 30 parallel bars equally spaced in a…

A: Calculation of clear areaTotal bars= Clear spaces=total bars+ 1=30+1=31Total width of clear area =…

Q: 1-5. The shaft is supported by a smooth thrust bearing at B and a smooth journal bearing at A.…

Q: Derive the shear force and moment equations and construct the shear force & bending moment liagrams…

A: A beam member that faces a loading condition as per the figure given belowNeed to find the shear…

Q: Calculate the required axial capacity in each member of the below simply supported truss. Th

A: A truss is given belowNeed to find The forces in each member with his behaviour

Q: 1-42 The 50-lb lamp is supported by three steel rods con- nected by a ring at A. Determine which rod…

Q: In the image below they used P=F but in the second picture they solved by using F=P and i dont know…

A: In the first problem, it is required to determine the value of P with two conditions to…

Q: Case Study: A 0 Design of a foundation (Reinforced Concrete) 4m Feu = 30 MPa fx = 460 N/mm² Ⓡ H 5m…

Q: Problem 5. (30pts) An aqueduct with a rectangular flow area has a depth, y=10ft, and a width,…

A: The objective of the question is to calculate the shear stress at the midpoint and top of the…

Q: Use the moment-area method to determine the slopes and deflections at point C of the beam shown.

A: Use the moment-area method to determine the slopes and deflections at point C of the beam shown.

Q: Q4) The exerciser begins with his arm in the relaxed vertical position OA, He then rotates his arm…

A: Force required to elongate band each additional meter is 60 N. We need to calculate moment about O

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

3- The time for 65% consolidation of a 1.12-inch clay specimen (drained at top and bottom) in the laboratory is 12 minutes. How long will it take (in days) for a 15-ft-thick clay layer in the field to undergo 35% consolidation under the same pressure increment? In the field, there is a rock layer at the bottom of the clay.
The time required for a 50% consolidation of a 25 mm thick layer (drained at both sides) in the laboratory is 2 min and 20 sec. How long in days will it take for a 3 m thick layer of the same clay in the field under the same pressure increment to reach 50% consolidation? In the field there is a rock layer at the bottom of the clay.
The time required for 50% consolidation of a 25 mm thick layer (drained at both top and bottom) in the laboratory is 2 min 20 sec. How long in days will it take for a 3 m thick layer clay of the same clay in the field under the same pressure increment to reach 50% consolidation? In the field there is a rock layer at the bottom of the clay.
U two-wa Q3 The time for 65% consolidation of a 19-mm clay specimen (drained at top and bottom) in the laboratory is 10 minutes. How long will it take for a 4-m-thick clay layer in the field to undergo 40% consolidation under the same pressure increment? In the field, there is a rock layer at the bottom of the clay.
A normally consolidated clay specimen drained from both sides is tested in the laboratory, and the following data are given: Time for 50% consolidation = 2 min Thickness of clay specimen = 25 mm 00' = 150 kN/m? ơo' + Aơ' = 300 kN/m² eo =1.1 ei = 0.9 a- Determine the coefficient of permeability (k) of the clay for the loading range b- How long (in days) will it take for a 1.8 m clay layer in the field (double drained) to reach 60% consolidation?
The time for 75% consolidation of a 25 mm clay specimen (drained at top and bottom) in the laboratory is 22 minutes. How long will it take for a 6 m thick clay layer (same clay) in the field to undergo 55% consolidation under the same pressure increment? In the field, there is a rock layer at the bottom of the clay layer.
Laboratory tests on a 25-mm-thick clay specimen drained at the top and bot-tom show that 50% consolidation takes place in 8.5 min.a. How long will it take for a similar clay layer in the field, 3.2 m thick anddrained at the top only, to undergo 50% consolidation?b. Find the time required for the clay layer in the field described in part (a)to reach 65% consolidation.
The time for 65% consolidation of a 19-mm clay specimen (drained at top and bottom) in the laboratory is 10 minutes. How long will it take for a 4-m-thick clay layer in the field to undergo 40% consolidation under the same pressure increment? In the field, there is a rock layer at the bottom of the clay.
Q1: A clay specimen was tested in a laboratory consolidation device, which was 12.7 mm thick and the top & bottom boundaries were drained. A 50% consolidation time on the specimen was obtained as 28.4 minutes, Determine the Following: a- The time for 50% consolidation in the field with a 2.5 m thickness where ‘only the top layer is drained. b- The time for 90% consolidation in the field with a 2.5 m thickness where only the top layer is drained. c- For the same field condition above, find the settlement after 1year, if the final consolidation settlement = 0.0345 m.
A 3-m thick layer of saturated clay (two-way drainage) under a surcharge loadingunderwent 90% primary consolidation in 100 days. The laboratory test’s specimenwill have two-way drainage.a. Find the coefficient of consolidation of clay for the pressure range. b. For a 25 mm. thick undisturbed clay specimen, how long will it take to under-go 80% consolidation in the laboratory for a similar pressure range?
The time required for a 50% consolidation of a 25mm thick layer drained both sides is 2 min 20 seconds. • How long (days) will it take for a 3m thick clay layer of the same clay in the field under the same pressure increment to reach 50% consolidation? In the field, there is a rock layer at the bottom of the clay• How long in days will it take to reach 30% consolidation?• The predicted primary settlement for the lab specimen is 0.064mm. What is the average degree of consolidation when the settlement reached 0.02mm?
The time required for a 50% consolidation of a 25 mm thick layer (drained at both and bottom) in the laboratory is 2min. 20 sec. a.) How long in days will it take for a 3 m. thick clay layer of the same clay in the field under the same pressure increment to reach 50% consolidation? In the field, there is a rock layer at the bottom of theclay. b.) How long in days will it take in the field for 30% primary consolidation to occur? c.) From the application of given pressure the anticipated primaryconsolidation settlement is 0.064 mm. What is the average degree of consolidation for the clay layer when the settlement is 0.02 mm?