Distance b to calculate the resistance of three-layer backfill.

Symbol
$b_{\mathrm{T}}$
Unit
m
Formulae
$H_{\mathrm{T}} - H_{\mathrm{c}}$
Related
$H_{\mathrm{c}}$
$H_{\mathrm{T}}$
Used in
$d_{\mathrm{T}}$
$R_{\mathrm{q23}}$
$R_{\mathrm{q33}}$