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 4, Problem 4.7P

Following results are obtained for a liquid limit test using a fall cone device. Estimate the liquid limit of the soil and the flow index.

Chapter 4, Problem 4.7P, Following results are obtained for a liquid limit test using a fall cone device. Estimate the liquid

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A constant head permeability test is performed on soil that is 2 cm x 2 cm square, and 2.5cm long. The head difference applied during the test is 20 cm and 7 cm3 is collected over a time of 100 sec. Provide step by step solution. a) Compute the permeability based on these test conditions and results.  b) A falling head test is conducted on the same soil specimen at the same time  (t1 – t2 = 100 sec), and the standpipe diameter is 0.8 cm. If the average head during the test should be 18 cm, what are h1 and h2 values, provide step by step solution solving h1 and h2 values.
FUNDAMENTALS OF GEOTECHNICAL ANALYSIS A constant head permeability test is performed on soil that is 2 cm x 2 cm square, and 2.5cm long. The head difference applied during the test is 20 cm and 7 cm3 is collected over a time of 100 sec. Provide step by step solution. a) Compute the permeability based on these test conditions and results.  b) A falling head test is conducted on the same soil specimen at the same time  (t1 – t2 = 100 sec), and the standpipe diameter is 0.8 cm. If the average head during the test should be 18 cm, what are h1 and h2 values?
A liquid limit test performed on a soil sample has the following results, compute for the value of the flow index.  No. of blows               Moisture content          20                               40.8%         28                               39.1%
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