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Overburden pressure, lithostatic pressure, and vertical stress are terms that denote the pressure or stress imposed on a layer of soil or rock by the weight of overlying material. Pressure (symbol 'p' is the force per unit Area applied to an object in a direction perpendicular to the surface Stress is a measure of the average amount of Force exerted per unit Area. Soil, often typeset as SOiL, is a four piece rock band from Chicago Illinois United States founded by Shaun Glass Tom Schofield Tim King and Adam Zadel In Geology, rock is a naturally occurring aggregate of Minerals and/or Mineraloids The Earth's outer solid layer the ‘ Lithosphere

The overburden pressure at a depth z is given by

p(z) = p_0 + g \int_{0}^{z} \rho(z)  \, dz

where ρ(z) is the density of the overlying rock at depth z and g is the acceleration due to gravity. The density of a material is defined as its Mass per unit Volume: \rho = \frac{m}{V} Different materials usually have different Standard gravity, usually denoted by g 0 or g n is the nominal acceleration due to gravity at the Earth's surface at sea level p0 is the datum pressure, like the pressure at the surface. This article describes a concept from Surveying and Geodesy. For other meanings see Datum (disambiguation.

See also


This article about a civil engineering topic is a stub. Sedimentary rock is one of the three main rock types (the others being igneous and Metamorphic rock) Karl von Terzaghi first proposed the relationship for effective stress in 1936 Pore water pressure refers to the pressure of Groundwater held within a Soil or rock, in gaps between particles ( Pores) Civil engineering is a professional engineering discipline that deals with the design construction and maintenance of the physical and naturally built You can help Wikipedia by expanding it.

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