b) A geotechnical laboratory reported these results of five samples taken from asingle boring. Determine which are not correctly reported, if any, show your work.Hint:take Yw = 9.81kN/m³Sample #1:w=30%,Ya = 14.9 kN/m³, Ys = 27 kN/m³, claySample #2:w=20%,Ya = 18 kN/m³, Ys = 27 kN/m³, siltSample #3:w=10%,Ya = 16 kN/m³, Y = 26 kN/m³, sandSample #4:w=22%,Yd = 17.3 kN/m³, Ys = 28 kN/m³, siltSample #5:w=22%,Yd = 18 kN/m³, Ys = 27 kN/m³, silt

Given : Five sample data is as follows : This is a problem of Soil mechanics where we are asked to…

Answered: b) A geotechnical laboratory reported…

b) A geotechnical laboratory reported these results of five samples taken from a single boring. Determine which are not correctly reported, if any, show your work. Hint:take Yw = 9.81kN/m³

Principles of Geotechnical Engineering (MindTap Course List)

9th Edition

ISBN:9781305970939

Author:Braja M. Das, Khaled Sobhan

Publisher:Braja M. Das, Khaled Sobhan

Chapter17: Subsoil Exploration

Section: Chapter Questions

Problem 17.7P

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Concept explainers

Laboratory Determination of Hydraulic Conductivity

Hydraulic conductivity is the measure of flowability of water inside the soil in the presence of a hydraulic gradient. The hydraulic gradient is defined as the difference in the water heads in the soil, which induces a water motion. In simple terms, a hydraulic gradient is the presence of a potential that induces a flow of water.

Question

b) A geotechnical laboratory reported these results of five samples taken from a
single boring. Determine which are not correctly reported, if any, show your work.
Hint:take Yw = 9.81kN/m³
Sample #1:w=30%,Ya = 14.9 kN/m³, Ys = 27 kN/m³, clay
Sample #2:w=20%,Ya = 18 kN/m³, Ys = 27 kN/m³, silt
Sample #3:w=10%,Ya = 16 kN/m³, Y = 26 kN/m³, sand
Sample #4:w=22%,Yd = 17.3 kN/m³, Ys = 28 kN/m³, silt
Sample #5:w=22%,Yd = 18 kN/m³, Ys = 27 kN/m³, silt

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