In a laboratory falling head test, a sample of soil 8.75 cm in diameter and 15 cm long. It was observed that the head was initially 50 cm and was reduced by 5 cm in a minute. a. If the radius of the standpipe = 10mm, calculate the hydraulic conductivity, in cm/s. b. How many minutes is required to the head to fall to 30 cm? c. If the objective is to decrease the head to 20 cm within 5 minutes, determine the appropriate diameter of the standpipe needed, in mm.

In a laboratory falling head test, a sample of soil 8.75 cm in diameter and 15 cm long. It was observed that the head was initially 50 cm and was reduced by 5 cm in a minute. a. If the radius of the standpipe = 10mm, calculate the hydraulic conductivity, in cm/s. b. How many minutes is required to the head to fall to 30 cm? c. If the objective is to decrease the head to 20 cm within 5 minutes, determine the appropriate diameter of the standpipe needed, in mm.

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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