The following table gives the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) N60 1.5 6 3.0 12 4.5 15 6.0 20 7.5 9.0 18 26 The groundwater table is located at a depth of 12 m. The dry unit weight of sand from 0 to a depth of 12 m is 17.6 kN/m³. Assume the mean grain size (D50) of the sand deposit to be about 0.8 mm. Estimate the variation of the relative density with depth for sand. Use the equation Dr (%) = = N60 (0.23+0.06/D50) 1.7 1 9 σo/Pa 0.5 (100) (Enter your answers to three significant figures.) Depth (m) N60 Dr. (%) 1.5 6 3.0 12 4.5 15 6.0 20 7.5 18 9.0 26
The following table gives the variation of the field standard penetration number (№60) in a sand deposit: Depth (m) N60 1.5 6 3.0 12 4.5 15 6.0 20 7.5 9.0 18 26 The groundwater table is located at a depth of 12 m. The dry unit weight of sand from 0 to a depth of 12 m is 17.6 kN/m³. Assume the mean grain size (D50) of the sand deposit to be about 0.8 mm. Estimate the variation of the relative density with depth for sand. Use the equation Dr (%) = = N60 (0.23+0.06/D50) 1.7 1 9 σo/Pa 0.5 (100) (Enter your answers to three significant figures.) Depth (m) N60 Dr. (%) 1.5 6 3.0 12 4.5 15 6.0 20 7.5 18 9.0 26
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
The following table gives the variation of the field standard penetration number in a sand deposit:
The groundwater table is located at a depth of 12 . The dry unit weight of sand from 0 to a depth of 12 is 17.6 . Assume the mean grain size of the sand deposit to be about 0.8 . Estimate the variation of the relative density with depth for sand. Use the equation
(Enter your answers to three significant figures.)
Transcribed Image Text:The following table gives the variation of the field standard penetration number (№60) in a sand deposit:
Depth (m) N60
1.5
6
3.0
12
4.5
15
6.0
20
7.5
9.0
18
26
The groundwater table is located at a depth of 12 m. The dry unit weight of sand from 0 to a depth of 12 m is 17.6 kN/m³. Assume the mean grain size (D50) of the sand deposit to be about 0.8 mm. Estimate the variation of the relative density with depth for
sand. Use the equation
Dr (%) =
=
N60 (0.23+0.06/D50) 1.7 1
9
σo/Pa
0.5
(100)
(Enter your answers to three significant figures.)
Depth (m) N60
Dr. (%)
1.5
6
3.0
12
4.5
15
6.0
20
7.5
18
9.0
26
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
Step by step
Solved in 2 steps with 1 images
Recommended textbooks for you
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Structural Analysis (10th Edition)
Civil Engineering
ISBN:
9780134610672
Author:
Russell C. Hibbeler
Publisher:
PEARSON
Principles of Foundation Engineering (MindTap Cou…
Civil Engineering
ISBN:
9781337705028
Author:
Braja M. Das, Nagaratnam Sivakugan
Publisher:
Cengage Learning
Fundamentals of Structural Analysis
Civil Engineering
ISBN:
9780073398006
Author:
Kenneth M. Leet Emeritus, Chia-Ming Uang, Joel Lanning
Publisher:
McGraw-Hill Education
Traffic and Highway Engineering
Civil Engineering
ISBN:
9781305156241
Author:
Garber, Nicholas J.
Publisher:
Cengage Learning