Answered: The observed N value in the field is 40…

The observed N value in the field is 40 at a depth of 6 m. The average saturated unit weight of fine sand is 19 kN/m³. The corrected N value of the soil is [Assume water table at ground level]

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter12: Shear Strength Of Soil

Section: Chapter Questions

Problem 12.24P

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Concept explainers

Test for Determination of Shear Strength

The term shear strength is often associated with the soil. Shear strength is defined as the resistance to the deformation of soil particles due to the continuous action of shear stress. In short, shear strength is the maximum shear stress that a soil can sustain.

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The observed N value in the field is 40 at a depth of 6 m. The average saturated unit weight of
fine sand is 19 kN/m³. The corrected N value of the soil is [Assume water table at ground level]

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A sand with Gs= 2.66 and void ratio e=0.60 is completely dry. It been becomes wetted by a rising groundwater table. Compute the unit weight in KN/cu.m. under the following conditions:a) When the sand is completely dryb) When the sand is 40% saturatedc) When the sand is completely saturated
An undisturbed sample of clay, 24 mm in thickness, is tested in a consolidometer. The total change in the thickness of the specimen in 4.74 mm when the applied pressure is 200 kN/m² and 6.13 mm when the applied pressure is 400 kN/m. On reducing the pressure to zero, the specimen swells to a thịckness of 18.50 mm. The final water content of the specimen is 32.6% and specific gravity is 2.72. The clay stratum, 1 m thick, is sandwiched between pervious strata, and is subjected to an overburden pressure of 200 kN/m². Estimate the probable settlement of a proposed structure, if due to its construction, the effective pressure at the centre of the clay layer is expected to be increased to 400 kN/m². don't try to solve this question, otherwise
For a normally consolidated soil, the following is given: Determine the following: a. The compression index, Cc. b. The void ratio corresponding to pressure of 200 kN/m2
A saturated sand sample has dry unit weight of 18 kN/m³ and a specific gravity of 2.65. If Yw = 10 kN/m³, the water content of the soil W is....
The height of the sample sand to be tested = 20 cm and the height of the saturated sand = 16 cm. Find the bulking of sand. 1. 20% 2. 55.5% 3. 25% 4. 80%
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A series of previous tests has established that the ultimate effective friction angle of a NC clayey soil is 19.2°. If a CD test is now performed on this soil with a cell pressure of 105 kPa, what would be deviator stress at failure? Given: o3 = Kao, where Ka 1-sin o' 1+sin o'
A sand with Gs = 2.66 and a void ratio of 0.60 is completely dry. It the becomes wetted by a rising groundwater table. Compute the unit weight in KN/m3 under the following conditions; a) When the sand is completely dry b) When the sand is 40% saturated c) When the sand is completely saturated
A stratified soil sample has the following profile characteristics: LAYER 1: The upper later is a 4-m thick sand layer with void ration = 0.61 and specific gravity of solids = 2.65. LAYER 2: The lower layer is a 5-m thick clay layer with void ration = 0.48 and specific gravity of solids = 2.67. If the ground water table is situated at the interface between the sand and clay layers, evaluate the effective stress (in kPa) at the bottom of the sand layer, and the effective stress at the bottom of the clay layer.
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A simple of dry sand is subjected to a triaxial test. During the test if deviator stress and cell pressure are 600 kN/m² and 200 kN/m² respectively then the angle of internal friction is: A 21.56° B 16.58° C 36.87°
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