Principles of Geotechnical Engineering: (9th Edition) [PDF]

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Principles of Geotechnical Engineering (9th Edition) See this solution in the app Show all steps:



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Chapter 6, Problem 2P



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For a soil with Gs = 2.7, calculate and plot the variation of dry



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density (in kg/m3) at w = 8, 12, 16, and 20% and for the



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degree of saturation at S = 55, 70, 85, and 100%,



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Determine dry density of soil.



My Textbook Solutions



Here, specific gravity of soil is



, optimum moisture content



of soil is , degree of saturation of soil is , dry density of soil is , density of water is



. Principles of... Mechanics of Mechanics of Materials Materials 9th Edition



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8th Edition



7th Edition



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Step 2 of 4



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Sample calculations Substitute



for



,



for



,



for



, and



for



Pavel



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Southern Methodis…



1248



formula. Maria MSU-IIT



Reza



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Thus, the dry density of soil is



.



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Step 3 of 4



Draw tabular form for all values. at 55% of S



Moisture content (w) (%)



at 70% of S



at 85% of S



at 100% of S



8



1938.64



2063.32



2152.91



2220.39



12



1699.08



1845.70



1954.86



2039.27



16



1512.22



1669.61



1790.17



1885.47



20



1362.39



1524.19



1651.08



1753.25



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Step 4 of 4



Plot the variation of dry density.



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