Groundwater and seepage
- Author
- Harr, Milton Edward, 1925-
- Published
- New York : McGraw-Hill, [1962]
- Physical Description
- 315 pages : illustrations ; 24 cm
- Contents
- FUNDAMENTALS OF GROUNDWATER FLOW: Scope and aim of subject -- Nature of soil body -- Discharge velocity and seepage velocity -- Darcy's law -- Range of validity of Darcy's law -- Coefficient of permeability -- Capillarity -- General hydrodynamic equations, velocity potential -- Two-dimensional flow, stream function -- Streamlines and equipotential lines -- Boundary conditions -- The flow net -- Seepage force and critical gradient -- Anisotropy -- APPLICATION OF THE DUPUIT THEORY OF UNCONFINED FLOW: Basic Considerations -- Two-dimensional flow on a horizontal impervious boundary -- Free surface subject to infiltration or evaporation -- Groundwater flow with an inclined lower impervious boundary -- Pavlovsky's solution for i > 0 -- Pavlovsky's solution for i < 0 -- Seepage through an earth dam on an impervious base -- Radial flow into completely penetrating wells -- CONFORMAL MAPPING BY ELEMENTARY FUNCTIONS: Introduction and geometrical representation of w = f(z) -- Application of the mapping function z = w2 -- Conformal mapping -- Fundamentals of solution of two-dimensional flow problems by conformal mapping -- Linear mapping function -- Reciprocal function, w = 1/z -- Bilinear transformation -- Upper half of z plane into unit circle in w plane -- The transformation w = zn -- SPECIAL MAPPING TECHNIQUES: Velocity hodograph -- Flow characteristics at singular points of flow domain -- Examples of velocity hodographs -- Construction of solution by complex velocity -- Zhukovsky functions -- The Schwarz-Christoffel transformation -- Examples of schwarz-christoffel mappings -- CONFINED FLOW: General discussion -- Hydraulic structure on surface of infinite depth of porous media -- Inclined sheetpile -- Finite lower impervious boundary: general -- Impervious structure with sheetpile on layer of finite depth -- Heaving and roofing -- Depressed structure on a permeable base of infinite extent -- Depressed structure on a permeable base of infinite extent with two symmetrical rows of pilings -- Double-wall sheetpile cofferdam -- APPROXIMATE METHODS OF SOLUTION FOR CONFINED FLOW PROBLEMS: Graphical flow net -- Solutions by analogies: electrical analogue -- The flow tank -- Viscous flow models: Hele-Shaw model -- Relaxation method -- Method of fragments -- Flow in layered systems -- UNCONFINED FLOW THROUGH EARTH STRUCTURES ON HOMOGENEOUS FOUNDATIONS OF GREAT DEPTH: General discussion -- Unconfined flow around cutoffs -- Seepage through homogeneous Earth dam with horizontal under-drain -- Earth structure with a cutoff wall -- Earth structure with a cutoff wall at the toe -- Earth structure with horizontal drain underlain by impervious material of infinite extent -- Seepage through earth structures into drains of finite length -- UNCONFINED FLOW THROUGH HOMOGENEOUS EARTH STRUCTURES OF FINITE DEPTH: Solution by inversion -- Rockfill dams with central cores without tail water -- Rockfill dams with tail water -- Seepage through an earth dam on an inclined impervious base -- Earth dam on impervious base with toe filter -- Seepage through earth dam founded on layer of finite depth with cutoff wall -- SEEPAGE FROM CANALS AND DITCHES: Seepage from a ditch with a curved perimeter into a horizontal drainage layer -- Seepage from a ditch into a curved drainage layer -- Seepage from ditches of trapezoidal shapes -- Seepage from triangular-shaped ditches -- Seepage from ditches into permeable layers at shallow depths -- Seepage from a shallow ditch considering capillarity -- Seepage from a ditch into a permeable layer of finite length -- SEEPAGE TOWARD WELLS: Fundamental equations; sources and sinks -- Well and uniform flow -- Flow between two wells of equal strength -- An eccentrically placed well within a circular contour -- Influence of the shape of the contour on the discharge -- Interference among wells -- Partially penetrating well in semi-infinite media -- Partially penetrating well in layer of finite thickness.
- Subject(s)
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