permeability Flashcards
Soils are assemblages of solid
particles with interconnected
voids where water can flow from
a point of ____________ to a point
of___________
high energy to a point
of low energy
The property of soils that allows water to
pass through them at some rate
Permeability
Beneath the water table
Fluid pressure is _________
hydrostatic
Immediately above the water table is the _________
capillary zone
In the capillary zone, water pressure is less than ________ pressure.
atmospheric
In darcy’s law, k is termed the ___________ with units of velocity.
hydraulic conductivity
Fluids flow in soils only when there is a______ in piezometric head h.
gradient
is a phenomenon by which the
soil on the downstream sides of some
hydraulic structures get lifted up due to the excess pressure of water.
piping
The pressure
that is exerted on the soil due to the
seepage of water is called the ________________.
seepage
force or pressure
forms in saturated loose sand when suddenly agitated.
quicksand
is a special case of quicksand. where In this case, sudden earthquake forces immediately increase
the pore pressure of shallow groundwater.
liquefaction
The study of flow water
through porous media is
important for stability analyses
of earth retaining structures
subjected to ___________
seepage force
Whenever there is fluid flow in soils, there is__________
energy dissipation.
In soils, fluids always flow _____ the gradient in piezometric head.
down
During quick sand condition, the _______________ is reduced to zero.
effective stress
