vasco98: Surface deformation associated with fluid withdrawl: an...

In abarbour/deform: Crustal Deformation Modeling Tools in R

Description

Surface deformation associated with fluid withdrawl: an alternative formulation

Usage

vasco98(help = FALSE)

.surface_g_pt(x = 0, x_src = 0, z_src = 0, nuu. = 1/3)

surface_displacement_point(x, depth, delV., B. = 1, rho_f. = 1000, tol, ...)

Arguments

help	logical; load documentation for vasco98
x	numeric; spatial coordinate relative to extraction point
x_src	numeric; the horizontal distance from the source
z_src	numeric; the depth of the source below the surface
nuu.	numeric; the 'undrained' Poisson's ratio (typically 1/3)
depth	numeric; the depth below the surface to the source
delV.	numeric; uniform change in pore-fluid volume (positive = loss)
B.	numeric; the xxx
rho_f.	numeric; the fluid density
tol	numeric; the numerical tolerance in the integration; if supplied, this should be much smaller than the smallest difference between any values in x divided by the depth
...	additional arguments passed to .surface_g_pt

References

Vasco, D., et al. (1998), Monitoring of Fluid Injection and Soil Consolidation Using Surface Tilt Measurements, http://ascelibrary.org/doi/abs/10.1061/(ASCE)1090-0241(1998)124:1(29)

See Also

segall85, or segall89; Simple-deformation

Examples

# Reproduce...
r <- seq(-10,10,by=0.2) # km
r.m <- r*1e3
xx <- surface_displacement_point(r.m, depth=2e3, delV.=1e7)
plot(uz ~ x, xx, type='l')

abarbour/deform documentation built on Feb. 15, 2022, 6:24 p.m.