Answered: Examine the data from the following…

Examine the data from the following soils. Tell me what you think may be the reason for the soil bulk densities varying as they do. Do you think you could suggest a Soil Order associated with each?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Soil engineering for highway design

Soil engineering is a part of geotechnical engineering that deals with the characteristics of soil. It also helps to understand the behavior of the soil in different conditions. The basic concepts of soil are studied to check the strength, compressibility, and porosity of the soil. This makes soil engineering an important topic for civil engineering.

Question

Examine the data from the following soils. Tell me what you think may be the reason for the soil bulk densities varying as they do. Do you think you could suggest a Soil Order associated with each?

Soil A
Soil B
Soil Depth (cm)
0-10
10-20
20-30
30-40
40-50
0-10
10-20
20-30
30-40
40-50
0.403
0.422
0.582
0.588
0.601
Bulk Density (g cm
1.03
1.19
1.37
1.39
varies 1.50 to 2.30

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Problem 1.2.1: The data below were obtained with tension device from two soils of unknown texture. Suction (en) 0 10 20 50 100 300 1000 10,000 20,000 100,000 Water content Soil A Soil B 44 44 43.9 38 22.5 12.5 7 5.2 5.1 4.9 52 52 52 31 48 32 20 13.5 13 128 Answer the following questions: 1. Which soil has a higher porosity? 2. What is the bulk density of the two samples? (Assume that the density of solids comprising both samples is ps = 2.65gm/cm³.) 3. What is estimated water content in the two samples at suction 15cm?