Question 2 An oedometer (consolidation) test was performed on a clay sample 3 cm high, drained on both sides, and taken from mid-stratum shown below. Seventy percent consolidation was attained in 6.67 minutes. Find: (b) The time required to attain 70% consolidation of the clay stratum. (c) The magnitude of that settlement in that time. 4m Sand Surcharge Sand y = 18 kN/m² 2m WT Clay • A _¢q= 1, Ce = 0.20, Ysat = 20 kN/m² 7m Dense Limestone

Question 2 An oedometer (consolidation) test was performed on a clay sample 3 cm high, drained on both sides, and taken from mid-stratum shown below. Seventy percent consolidation was attained in 6.67 minutes. Find: (b) The time required to attain 70% consolidation of the clay stratum. (c) The magnitude of that settlement in that time. 4m Sand Surcharge Sand y = 18 kN/m² 2m WT Clay • A _¢q= 1, Ce = 0.20, Ysat = 20 kN/m² 7m Dense Limestone

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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8.2
Kindly answe the question in the image given below (Q3)
Two identically clay samples of the same size designated as A and B are subjected to consolidation under identical conditions. Drainage takes place through one face in sample A and through both the faces in sample B. 50% consolidation of sample A occurs in 10 minutes. The time required for 50 % consolidation to occur in sample B in minutes will be. (a) 40 (c) 5 (b) 10 (d) 2.5
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Q₂/ From the result which obtained from consolidation test on a sample of clay soil at depth (3.5 m). Show if the soil is (N.C.C) or (O.C.C), if you know: (y sat = 18.82 kN/m³). Pressure Void ratio 0 0.903 25 0.865 50 0.843 100 0.795 200 0.730 400 0.651 800 0.555 1600 0.468 400 0.501 100 0.547 25 0.583 0 0.612
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A sample of moist sand was subjected to a series of triaxial tests. The soil fails under the following stresses Cell pressure, σ3 Plunger stress, σd Sample 1 11 kPa 20 kPa Sample 2 26 kPa 31 kPa What is the angle of internal friction and cohesion of the soil? Please answer this asap. For upvote. Thank you very much
Compare the final settlement magnitude of the soil samples in the two scenarios explained below between time t1 and time t2. Note: The answer must include a short explanation of the reason too. 1) The soil sample is compacted and subjected to one-dimensional consolidation loading under 200 kPa. After completion of the consolidation stage, it is unloaded and consolidated to 10 kPa (time=ti). Afterwards, the axial stress on the soil is increased to 200 kPa (time=t2). 2) The soil sample is consolidated under 10 kPa (time=ti), 50 kPa, 100 kPa and finally 200 kPa (time=t2).
W1
It’s a common observation that hydraulic conductivity of fine sands is greater than that of clean gravels (True or False) Standard Penetration Test (SPT) N-values can be correlated with soil’s unconfined compressive strength (True or False) If a soil sample has a 100% degree of saturation, the sample’s water content also becomes 100% (True or False) In the consolidation theory, the greater the coefficient of consolidation (cv), the faster the consolidation (True or False)
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A consolidated-drained triaxial test was conducted on an overconsolidated clay sample. The sample failed in test 1 at 01=200 kPa and 03=130 kPa, and in test 2 at o1=400 kPa and 03=290 kPa. Determine the undrained and drained friction angles and cohesion for the assumption that the Skempton's pore water pressure parameter A=0.45. Also, for a CU test on the same soil, determine o1, 1', 03', and excess pore water pressure u for 03=340 kPa.