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Your search keyword '"H. Y. Hammad"' showing total 3 results
Start Over Author "H. Y. Hammad" Journal transactions of the american society of civil engineers
3 results on '"H. Y. Hammad"'

1. Seepage Losses from Parallel Canal Systems

Author

H. Y. Hammad

Subjects
Gravity (chemistry), Canal water, Soil water, General Engineering, General Earth and Planetary Sciences, Two-dimensional flow, Geotechnical engineering, Conformal map, Seepage flow, Layer (electronics), Geology, General Environmental Science
Abstract

Two-dimensional problem of steady seepage flow under gravity from system of parallel, identical, and equally spaced canals into semipervious clay layer underlain by freely permeable layer of sand and gravel in which piezometric heat is very near canal water level; two steps of conformal mapping are used and approximation to canal profile is adopted.

Published
1961
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2. Depth and Spacing of Tile Drain Systems

Author

H. Y. Hammad

Subjects
Water table, Soil surface, Physics::Geophysics, visual_art, Soil water, visual_art.visual_art_medium, Geotechnical engineering, Tile, Drainage, Porosity, Saturation (chemistry), Seepage flow, Physics::Atmospheric and Oceanic Physics, Geology
Abstract

Paper discusses saturation of agricultural soil by over-irrigation or rain; downward seepage flow through porous soil to system of parallel tile drains is studied, and theory of hydrodynamics is developed for providing scientific basis for design; new spacing formula is obtained based on time variation of water table; effect of evaporation from soil surface on spacing formula.

Published
1963
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