Solutions Manual for Principles of Geotechnical Engineering 9th Edition Das

SOLUTIONS MANUAL FOR
PRINCIPLES OF GEOTECHNICAL
ENGINEERING 9TH EDITION DAS

, Principles of Geotechnical Engineering 9th Edition Das Solutions Manual




Chapter 2

2
D60 0.48 D30 0.25 2
2.1 Cu = = = 4.36 ; Cc = = = 1.18
D10 0.11 ( D60 )( D10 ) ( 0.48)( 0.11)

Since Cu > 4 and Cc is between 1 and 3, the soil is well graded.


2
D60 1.1 D30 0.412
2.2 Cu = = = 6.11 ; Cc = = = 0.727 ≈ 0.73
D10 0.18 ( D60 )( D10 ) (1.1)( 0.18)

Although Cu > 6, Cc is not between 1 and 3. The soil is poorly graded.


2.3 The D10, D30, and D60 for soils A, B, and C are obtained from the grain-size
distribution curves.




2
D60 3.5 D30 1.95 2
Soil A: Cu = = = 17.5 ; Cc = = = 5.43
D10 0.2 ( D60 )( D10 ) (3.5)(0.2)

Although Cu > 6, Cc is not between 1 and 3. The sand is poorly graded.



1
© 2018 Cengage Learning®. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part.



Visit TestBankDeal.com to get complete for all chapters