A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Hydraulic Parameters
Hydraulic conductivity can be measured in two ways: either in the laboratory or in the field. Measurements conducted in the laboratory are accurate and refined but have limited applications compared to the field because they do not represent large discontinuities such as fractures, anisotropy and alteration. Clay soils are often anisotropic, different hydraulic conductivity with in the horizontal (kh) and vertical (kv) directions. The ratio of the former to the latter is called the ratio of anisotropy. Water pressure dissipation during a cone penetration test (CPTu) can be recorded using a piezocone. The water has a restricted movement when saturating the soil, and a part of it is retained by suction or water‐holding capacity. Thus, the water that is free to move is not equal to the porosity except for very coarse materials. This is called the effective porosity, which decreases with grain size.
Hydraulic Parameters
Hydraulic conductivity can be measured in two ways: either in the laboratory or in the field. Measurements conducted in the laboratory are accurate and refined but have limited applications compared to the field because they do not represent large discontinuities such as fractures, anisotropy and alteration. Clay soils are often anisotropic, different hydraulic conductivity with in the horizontal (kh) and vertical (kv) directions. The ratio of the former to the latter is called the ratio of anisotropy. Water pressure dissipation during a cone penetration test (CPTu) can be recorded using a piezocone. The water has a restricted movement when saturating the soil, and a part of it is retained by suction or water‐holding capacity. Thus, the water that is free to move is not equal to the porosity except for very coarse materials. This is called the effective porosity, which decreases with grain size.
Hydraulic Parameters
Verbrugge, Jean‐Claude (author) / Schroeder, Christian (author)
2018-05-30
4 pages
Article/Chapter (Book)
Electronic Resource
English
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