segall89: Surface deformation associated with fluid withdrawl from a...

In abarbour/deform: Crustal Deformation Modeling Tools in R

Description

Surface deformation associated with fluid withdrawl from a disk-shaped reservoir

Usage

segall89(help = FALSE)

.surface_g_xi(x, depth, halfwidth, thickness)

surface_displacement_reservoir(
  x,
  depth = 1,
  halfwidth = depth,
  thickness = depth/10,
  DelM. = 1,
  nuu. = 1/3,
  B. = 1,
  rho_f. = 1000,
  ...
)

Arguments

help	logical; load documentation for segall89
x	numeric; the horizontal (or radial) distance from the source
depth	numeric; the depth below the surface to the top of the reservoir
halfwidth	numeric; the half-length of the reservoir
thickness	numeric; the thickness of the reservoir
DelM.	numeric; the change in mass per unit volume in the reservoir
nuu.	numeric; the undrained Poisson's ratio for the reservoir material
B.	numeric; Skempton's ratio for the reservoir material
rho_f.	numeric; the density of the fluid in the reservoir material
...	additional parameters (currently unused)

See Also

segall85; Simple-deformation

Examples

# Reproduce Figure 5 from Segall (1989)
r <- seq(-4,4,by=0.1)
xx <- surface_displacement_reservoir(r)
plot(Xi_z ~ x, xx, type='l', ylim=c(-1.6,0.8))
lines(Xi_x ~ x, xx)
lines(Xi_xx ~ x, xx)

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