In a drainage system, closed drains are placed with their centres 1.8 m below the ground level. The highest position of the drained water table is 1.4 m below the ground level. The impervious layer is at a depth of 5.8 m below the ground level. The average annual rainfall is 75 cm and permeability is 2 x 105 m/sec. If it is assumed that 1% of annual average rainfall is drained per day, then the spacing of drains is

Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
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In a drainage system, closed drains are placed with their centres 1.8 m below the
ground level. The highest position of the drained water table is 1.4 m below the
ground level. The impervious layer is at a depth of 5.8 m below the ground level.
The average annual rainfall is 75 cm and permeability is 2 x 105 m/sec. If it is
assumed that 1% of annual average rainfall is drained per day, then the spacing of
drains is
Transcribed Image Text:In a drainage system, closed drains are placed with their centres 1.8 m below the ground level. The highest position of the drained water table is 1.4 m below the ground level. The impervious layer is at a depth of 5.8 m below the ground level. The average annual rainfall is 75 cm and permeability is 2 x 105 m/sec. If it is assumed that 1% of annual average rainfall is drained per day, then the spacing of drains is
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