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36 relations: Aquifer, ASTM International, Atmospheric pressure, Bernoulli's principle, Capillary action, Ceramic, Clay, Effective stress, Frost weathering, Geotechnical engineering, Gravity, Groundwater, Hydraulic head, Hydrostatics, International Organization for Standardization, Ion, Isothermal process, Karl von Terzaghi, Phreatic, Piezometer, Pore space in soil, Pressure, Rock (geology), Sand, Silt, Soil, Soil mechanics, Suction, Tensiometer (soil science), Tension (physics), Terzaghi's principle, Transducer, United States Bureau of Reclamation, Vadose zone, Water potential, Water table.
Aquifer
An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt).
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ASTM International
ASTM International is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.
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Atmospheric pressure
Atmospheric pressure, sometimes also called barometric pressure, is the pressure within the atmosphere of Earth (or that of another planet).
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Bernoulli's principle
In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid's potential energy.
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Capillary action
Capillary action (sometimes capillarity, capillary motion, capillary effect, or wicking) is the ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.
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Ceramic
A ceramic is a non-metallic solid material comprising an inorganic compound of metal, non-metal or metalloid atoms primarily held in ionic and covalent bonds.
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Clay
Clay is a finely-grained natural rock or soil material that combines one or more clay minerals with possible traces of quartz (SiO2), metal oxides (Al2O3, MgO etc.) and organic matter.
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Effective stress
Effective stress is a force that keeps a collection of particles rigid.
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Frost weathering
Frost weathering is a collective term for several mechanical weathering processes induced by stresses created by the freezing of water into ice.
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Geotechnical engineering
Geotechnical engineering is the branch of civil engineering concerned with the engineering behavior of earth materials.
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Gravity
Gravity, or gravitation, is a natural phenomenon by which all things with mass or energy—including planets, stars, galaxies, and even light—are brought toward (or gravitate toward) one another.
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Groundwater
Groundwater is the water present beneath Earth's surface in soil pore spaces and in the fractures of rock formations.
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Hydraulic head
Hydraulic head or piezometric head is a specific measurement of liquid pressure above a geodetic datum.
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Hydrostatics
Fluid statics or hydrostatics is the branch of fluid mechanics that studies fluids at rest.
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International Organization for Standardization
The International Organization for Standardization (ISO) is an international standard-setting body composed of representatives from various national standards organizations.
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Ion
An ion is an atom or molecule that has a non-zero net electrical charge (its total number of electrons is not equal to its total number of protons).
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Isothermal process
An isothermal process is a change of a system, in which the temperature remains constant: ΔT.
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Karl von Terzaghi
Karl von Terzaghi (October 2, 1883 – October 25, 1963) was an Austrian civil engineer, geotechnical engineer and geologist known as the "father of soil mechanics".
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Phreatic
Phreatic is a term used in hydrology to refer to aquifers, in speleology to refer to cave passages, and in volcanology to refer to eruption type.
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Piezometer
A piezometer is either a device used to measure liquid pressure in a system by measuring the height to which a column of the liquid rises against gravity, or a device which measures the pressure (more precisely, the piezometric head) of groundwater at a specific point.
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Pore space in soil
The pore space of soil contains the liquid and gas phases of soil, i.e., everything but the solid phase that contains mainly minerals of varying sizes as well as organic compounds.
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Pressure
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
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Rock (geology)
Rock or stone is a natural substance, a solid aggregate of one or more minerals or mineraloids.
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Sand
Sand is a naturally occurring granular material composed of finely divided rock and mineral particles.
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Silt
Silt is granular material of a size between sand and clay, whose mineral origin is quartz and feldspar.
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Soil
Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life.
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Soil mechanics
Soil mechanics is a branch of soil physics and applied mechanics that describes the behavior of soils.
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Suction
Suction is the flow of a fluid into a partial vacuum, or region of low pressure.
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Tensiometer (soil science)
A tensiometer in soil science is a measuring instrument used to determine the matric water potential (\Psi_m) (soil moisture tension) in the vadose zone.
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Tension (physics)
In physics, tension may be described as the pulling force transmitted axially by the means of a string, cable, chain, or similar one-dimensional continuous object, or by each end of a rod, truss member, or similar three-dimensional object; tension might also be described as the action-reaction pair of forces acting at each end of said elements.
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Terzaghi's principle
Terzaghi's Principle states that when a rock is subjected to a stress, it is opposed by the fluid pressure of pores in the rock.
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Transducer
A transducer is a device that converts energy from one form to another.
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United States Bureau of Reclamation
The United States Bureau of Reclamation (USBR), and formerly the United States Reclamation Service (not to be confused with the Office of Surface Mining Reclamation and Enforcement), is a federal agency under the U.S. Department of the Interior, which oversees water resource management, specifically as it applies to the oversight and operation of the diversion, delivery, and storage projects that it has built throughout the western United States for irrigation, water supply, and attendant hydroelectric power generation.
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Vadose zone
The vadose zone, also termed the unsaturated zone, is the part of Earth between the land surface and the top of the phreatic zone, the position at which the groundwater (the water in the soil's pores) is at atmospheric pressure ("vadose" is from the Latin for "shallow").
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Water potential
Water potential is the potential energy of water per unit volume relative to pure water in reference conditions.
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Water table
The water table is the upper surface of the zone of saturation.
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Redirects here:
Pore fluid pressure, Pore pressure, Porewater pressure.
References
[1] https://en.wikipedia.org/wiki/Pore_water_pressure
