compressive_properties2 {soilphysics}

Estimation of compressive properties by Keller and Arvidsson (2007)

Description

It calculates the compressive parameters N and lambda using the pedo-transfer function from Keller and Arvidsson (2007)

Usage

 
compressive_properties2(particle.density, bulk.density)

Arguments

particle.density

a numeric vector containing the values of particle density, Mg m^{-3}

bulk.density

a numeric vector containing the values of bulk density, Mg m^{-3}

Details

In Keller and Arvidsson (2007), the recompression index, kappa, was found as 0.042 for all soil.

Value

N

the specific volume at p = 1 kPa, N

CI

the compression index, lambda

Author(s)

Renato Paiva de Lima <[e-mail]> Anderson Rodrigo da Silva <[e-mail]>

References

Keller, T., Arvidsson, J., 2007. Compressive properties of some Swedish and Danish structured agricultural soils measured in uniaxial compression tests. European Journal of Soil Science , 58: 1373-1381.

See Also

stressTraffic

Examples

# EXAMPLE 1

 compressive_properties2(particle.density=2.65, bulk.density=1.5)

# EXAMPLE 2

BD <- seq(from=1.2,to=1.8, by=0.01) # range of bulk density from 1.2 to 1.8
out <- compressive_properties2(particle.density=2.65, bulk.density=BD)

plot(x=BD,y=out$N, ylab="N", xlab="Bulk density") # for N
plot(x=BD,y=out$CI, ylab="Compression index (CI)", xlab="Bulk density") # for compression index

# End (not run)