9. An experimental setup in the laboratory is shown. Two 50 mm diameter soil samples A and B are placed under constant head. (All dimensions are in mm.) The permeability of sample A is twice that of sample B. Assuming the tail water level as the datum, what is the total head at the interface between the soil samples? If 200 ml of water flows through the sample in 5 minutes, determine the permeabilities of the two soil samples. Water 412 140 Answer: 62.5 mm, 0.076 cm/s, 0.038 cm/s 4 B Datum 287

9. An experimental setup in the laboratory is shown. Two 50 mm diameter soil samples A and B are placed under constant head. (All dimensions are in mm.) The permeability of sample A is twice that of sample B. Assuming the tail water level as the datum, what is the total head at the interface between the soil samples? If 200 ml of water flows through the sample in 5 minutes, determine the permeabilities of the two soil samples. Water 412 140 Answer: 62.5 mm, 0.076 cm/s, 0.038 cm/s 4 B Datum 287

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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The hydraulic conductivity of a soil sample (3.4 x 10-4 cm/s) has been determined via a permeability test. The water temperature was 28°C at the time of experiment. What is the hydraulic conductivity of the sample at the standard temperature of 20°C?
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Answer Question 7
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A carefully-weighed 52.9 gram soil sample was dispersed for particle-size analysis using the Bouyoucos hydrometer method. The laboratory was held at a constant temperature of 20 C (68 F). The hydrometer reading after 40 seconds was 20.1 and the hydrometer reading after 8 hours was 5.1. What percentage of particles in the soil sample were clay-sized? Your Answer: Answer units
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