A cone penetration test has been conducted, and has measured a cone resistance of 85 kg/cm² at a depth of 10 m. The vertical effective stress at this depth is 150 kPa, and the overconsoliation ratio is 2. The soils at this depth are quartz sands. Compute the relative density, and classify the soil using Table 3.3.

Structural Analysis
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Author:KASSIMALI, Aslam.
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A cone penetration test has been conducted, and has measured a cone resistance of 85
kg/cm² at a depth of 10 m. The vertical effective stress at this depth is 150 kPa, and the
overconsoliation ratio is 2. The soils at this depth are quartz sands. Compute the relative
density, and classify the soil using Table 3.3.
Transcribed Image Text:A cone penetration test has been conducted, and has measured a cone resistance of 85 kg/cm² at a depth of 10 m. The vertical effective stress at this depth is 150 kPa, and the overconsoliation ratio is 2. The soils at this depth are quartz sands. Compute the relative density, and classify the soil using Table 3.3.
TABLE 3.3 CONSISTENCY OF COARSE-GRAINED
SOILS VARIOUS RELATIVE DENSITIES (Adapted
from Lambe and Whitman, 1969)
Relative Density, D, (%)
0-15
15-35
35-65
65-85
85-100
Classification
Very loose
Loose
Medium dense
Dense
Very dense
"Lambe and Whitman used the term "medium," but "medium dense"
is better because "medium" usually refers to the grain size distribu-
tion.
Transcribed Image Text:TABLE 3.3 CONSISTENCY OF COARSE-GRAINED SOILS VARIOUS RELATIVE DENSITIES (Adapted from Lambe and Whitman, 1969) Relative Density, D, (%) 0-15 15-35 35-65 65-85 85-100 Classification Very loose Loose Medium dense Dense Very dense "Lambe and Whitman used the term "medium," but "medium dense" is better because "medium" usually refers to the grain size distribu- tion.
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