A laboratory testing campaign has been performed on soil samples within the context of a ground investigation that relates to the construction of a five-story building. The soil strata found in-situ comprises a 6 m layer of fine-grained material overlying permeable bedrock. Ground water table was found to be at the ground surface. Consider that sufficient high quality samples were obtained using block sampling procedures within a trench from a depth of 3 m in order to complete the following tasks. a) A representative soil sample (356.52 g) was subject to a wet sieving test producing the following data as reported by a laboratory technician (see Table 1):
A laboratory testing campaign has been performed on soil samples within the context of a ground investigation that relates to the construction of a five-story building. The soil strata found in-situ comprises a 6 m layer of fine-grained material overlying permeable bedrock. Ground water table was found to be at the ground surface. Consider that sufficient high quality samples were obtained using block sampling procedures within a trench from a depth of 3 m in order to complete the following tasks. a) A representative soil sample (356.52 g) was subject to a wet sieving test producing the following data as reported by a laboratory technician (see Table 1):
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Step 1: Introduce the problem statement
VIEWStep 2: Determine Percent Finer for sieve sizes
VIEWStep 3: Plot the particle Size Distribution Curve
VIEWStep 4: Determine Value of Mean Diameter
VIEWStep 5: Compute Uniformity Coefficient and Coefficient of Curvature
VIEWStep 6: Classify the given soil and comment about it
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c. Recall that the natural moisture of the soil is 36.4%. Consider that the following properties
were also measured using the relevant experimental procedures on representative
(saturated) samples of the soil deposit at a depth of 3 m:
Specific gravity, Gs = 2.62
Unit weight of water, gw = 9.81 kN/m3
Draw a phase diagram and estimate the void ratio and the bulk density of the soil. What
can you comment in relation to the density of the soils and its expected compressibility?
How would you expect these to vary with depth?
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