A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Coefficient of Earth Pressure at Rest
This chapter describes the evaluation of the coefficient of earth pressure at rest. The coefficient of earth pressure depends on the plasticity index of soil. The chapter expresses the equations that are only valid for normally consolidated soils and mainly for sands or sandy soils. Higher values of the coefficient of earth pressure are sometimes found for cemented soils, which are also influenced by sensitivity. Overcompaction of backfills or embankments partly induces overconsolidation. From regression analyses of the results obtained from the laboratory and in situ tests, Kulhawy and Mayne deduced the equations for cone penetrometer test (CPT), and standard penetration test (SPT), respectively. From the equation of Kulhawy that yields horizontal stress obtained from tests performed on sands in a calibration chamber, by combining CPT result and relative density, it is possible to deduce the coefficient of earth pressure.
Coefficient of Earth Pressure at Rest
This chapter describes the evaluation of the coefficient of earth pressure at rest. The coefficient of earth pressure depends on the plasticity index of soil. The chapter expresses the equations that are only valid for normally consolidated soils and mainly for sands or sandy soils. Higher values of the coefficient of earth pressure are sometimes found for cemented soils, which are also influenced by sensitivity. Overcompaction of backfills or embankments partly induces overconsolidation. From regression analyses of the results obtained from the laboratory and in situ tests, Kulhawy and Mayne deduced the equations for cone penetrometer test (CPT), and standard penetration test (SPT), respectively. From the equation of Kulhawy that yields horizontal stress obtained from tests performed on sands in a calibration chamber, by combining CPT result and relative density, it is possible to deduce the coefficient of earth pressure.
Coefficient of Earth Pressure at Rest
Verbrugge, Jean‐Claude (author) / Schroeder, Christian (author)
2018-05-30
3 pages
Article/Chapter (Book)
Electronic Resource
English
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