The standard proctor tests were performed on two types of soil. The results of water content (w) and the unit weight () are given in the table below for "Soil A" and "Soil B". Soil A Unit weight, y Soil B Unit weight, y Water content, w (%) 3.2 5.9 7.8 11.2 16.1 (kN/m³) 16.5 17.3 18 19 18.7 Water content, w (%) 5.9 9.5 12.2 16.2 20.9 (kN/m³) 16.5 17.3 18 19 18.7 (i) Calculate the dry unit weight () for each test. (ii) Plot a graph between dry unit weight (7) and water content (w) for both the soils. (iii) Evaluate the compaction parameters and select the suitable soil.

The standard proctor tests were performed on two types of soil. The results of water content (w) and the unit weight () are given in the table below for "Soil A" and "Soil B". Soil A Unit weight, y Soil B Unit weight, y Water content, w (%) 3.2 5.9 7.8 11.2 16.1 (kN/m³) 16.5 17.3 18 19 18.7 Water content, w (%) 5.9 9.5 12.2 16.2 20.9 (kN/m³) 16.5 17.3 18 19 18.7 (i) Calculate the dry unit weight () for each test. (ii) Plot a graph between dry unit weight (7) and water content (w) for both the soils. (iii) Evaluate the compaction parameters and select the suitable soil.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter8: Stresses In A Soil Mass

Section: Chapter Questions

Problem 8.3P

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Concept explainers

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.

Question

The standard proctor tests were performed on two types of soil. The results of water content (w)
and the unit weight () are given in the table below for "Soil A" and "Soil B".
Soil A
Unit weight, y
Soil B
Unit weight, y
Water content,
w (%)
3.2
5.9
7.8
11.2
16.1
(kN/m³)
16.5
17.3
18
19
18.7
Water content,
w (%)
5.9
9.5
12.2
16.2
20.9
(kN/m³)
16.5
17.3
18
19
18.7
(i)
Calculate the dry unit weight () for each test.
(ii)
Plot a graph between dry unit weight (7) and water content (w) for both the soils.
(iii) Evaluate the compaction parameters and select the suitable soil.

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