Analysis of flow into draintile in three-dimensional flow field

Draintiles (impervious lengths of pipe laid end to end with gaps between adjacent sections to permit water entry) are commonly used in the drainage of agricultural lands and airport runways, and are employed to ensure foundational stability of many structures. The rate of flow into a line of drainti...

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Bibliographic Details
Published inJournal of hydrology (Amsterdam) Vol. 122; no. 1-4; pp. 321 - 333
Main Authors Hazenberg, G., Panu, U.S.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.01.1991
Elsevier Science
Subjects
drain pipes
Earth sciences
Earth, ocean, space
Exact sciences and technology
flow rate
flow to drains
Hydrogeology
Hydrology. Hydrogeology
mathematical models
saturated conditions
spatial distribution
subsurface drainage
tile drainage
water
Drainage
Formula
Three dimensional model
Flow mechanism
Three-dimensional models
Agriculture
Mathematical models
Mathematical model
Velocity
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Summary:Draintiles (impervious lengths of pipe laid end to end with gaps between adjacent sections to permit water entry) are commonly used in the drainage of agricultural lands and airport runways, and are employed to ensure foundational stability of many structures. The rate of flow into a line of draintiles buried in water-saturated soil depends upon the width and spacing of the gaps between the tiles as well as other parameters. A formula is developed in this paper for the general, non-axisymmetric case to determine the flow rate into a single gap. The differences between the formula developed in this paper and that developed earlier are discussed in terms of their derivation. A numerical example provides details on the essential differences between the two formulae.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0022-1694
1879-2707
DOI:10.1016/0022-1694(91)90186-L