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- Factors_affecting_permeability_of_soils abstract "The following factors affect permeability of soils. Particle Size. It was studied by Allen Hazen that the coefficient of permeability (k) of a soil is directly proportional to the square of the particle size (D). Thus permeability of coarse grained soil is very large as compared to that of fine grained soil. The permeability of coarse sand may be more than one million times as much that of clay. Impurities in water. Any foreign matter in water has tendency to plug the flow passage and reduce the effective voids and hence permeability of soil. Void ratio (e). Coefficient of permeability varies with void ratio as e3/(1+e). For a given soil, the greater the void ratio, the higher is the value of coefficient of permeability. Here 'e' is void ratio. Based on other concepts it has been established that permeability of a soil varies as e2 or e2/(1+e). Whatever may be the exact relationship, all soils have e versus log k plot as a straight line. Degree of Saturation. If the soil is not fully saturated, it contains air pockets. The permeability is reduced due to the presence of air which causes blockage to passage. Consequently, the permeability of a partially saturated soil is considerably smaller than that of fully saturated soil. In fact, Darcy's Law is not strictly applicable to such soils. Adsorbed water. The fine grained soil have a layer of adsorbed water strongly attached to their surface. This adsorbed layer is not free to move under gravity. It causes an obstruction to the flow of water in the pores and hence reduces permeability of soils. Entrapped air and organic matter.The air entrapped in the soil and organic matter block the passage of water through soil, hence permeability considerably decreases. In permeability tests, the sample of soil used should be fully saturated to avoid errors.".
- Factors_affecting_permeability_of_soils wikiPageID "42610193".
- Factors_affecting_permeability_of_soils wikiPageLength "2582".
- Factors_affecting_permeability_of_soils wikiPageOutDegree "18".
- Factors_affecting_permeability_of_soils wikiPageRevisionID "635908620".
- Factors_affecting_permeability_of_soils wikiPageWikiLink Allen_Hazen.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Category:Pedology.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Category:Soil_mechanics.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Category:Soil_science.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Darcys_Law.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Darcys_law.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Permeability_(earth_sciences).
- Factors_affecting_permeability_of_soils wikiPageWikiLink Soil.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Soil_Mechanics.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Soil_mechanics.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Void_ratio.
- Factors_affecting_permeability_of_soils wikiPageWikiLink Water.
- Factors_affecting_permeability_of_soils wikiPageWikiLinkText "Factors affecting permeability of soils".
- Factors_affecting_permeability_of_soils hasPhotoCollection Factors_affecting_permeability_of_soils.
- Factors_affecting_permeability_of_soils wikiPageUsesTemplate Template:Reflist.
- Factors_affecting_permeability_of_soils subject Category:Pedology.
- Factors_affecting_permeability_of_soils subject Category:Soil_mechanics.
- Factors_affecting_permeability_of_soils subject Category:Soil_science.
- Factors_affecting_permeability_of_soils comment "The following factors affect permeability of soils. Particle Size. It was studied by Allen Hazen that the coefficient of permeability (k) of a soil is directly proportional to the square of the particle size (D). Thus permeability of coarse grained soil is very large as compared to that of fine grained soil. The permeability of coarse sand may be more than one million times as much that of clay. Impurities in water.".
- Factors_affecting_permeability_of_soils label "Factors affecting permeability of soils".
- Factors_affecting_permeability_of_soils sameAs m.010gk5yk.
- Factors_affecting_permeability_of_soils sameAs Q18354632.
- Factors_affecting_permeability_of_soils sameAs Q18354632.
- Factors_affecting_permeability_of_soils wasDerivedFrom Factors_affecting_permeability_of_soils?oldid=635908620.
- Factors_affecting_permeability_of_soils isPrimaryTopicOf Factors_affecting_permeability_of_soils.