Principles of Geotechnical Engineering (MindTap Course List)
Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN: 9781305970939
Author: Braja M. Das, Khaled Sobhan
Publisher: Cengage Learning
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Chapter 2, Problem 2.2P
To determine

Calculate the uniformity coefficient Cu and coefficient of gradation of the soil Cc.

State is it a well-graded or a poorly-graded soil.

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Problem 1: For a gravel with D60 0.48mm, D30 0.25mm, and D10 coefficient and the coefficient of gradation. Is it a well-graded or poorly graded soil? - = = = 0.11mm, calculate the uniformity Problem 2: 0.3 mm, D30 The following values for a sand are given: D10 Determine Cu and Cc and state if it is a well-graded or a poorly graded soil. = 0.41 mm, and D60 = = 0.77 mm.
Problem 2.1: The following values for a sand are given: D10 = 0.3 mm, D30 = 0.41 mm, and D60 = 0.77 mm.Determine Cu and Cc, and state if it is a well-graded or a poorly-graded soil.
SIZE (mm) PERCENT FINER 2.0 90.1 0.073 53.96 0.053 41.9 0.0045 25.16 0.0017 10.1 A sample of residual soil developed on shaly sandstone has the following grain-size characteristics. USING USDA, DETERMINE THE FOLLOWING AND SHOW COMPLETE SOLUTION. PLOT THE GRAPH.  (ALL FINAL ANSWER IS IN 3 DECIMAL PLACES) 1. Determine the modified percentage of sand. 2. Determine the modified percentage of silt. 3. Determine the modified percentage of clay. 4. Determine the classification of soil.
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