Depth to lower edge of cable bedding (used for multi-layer backfill).

Symbol
$H_{\mathrm{T}}$
Unit
m
Formulae
$\frac{h_{\mathrm{b}}}{1000} + s_{\mathrm{1}} + s_{\mathrm{2}}$
Related
$h_{\mathrm{b}}$
Used in
$b_{\mathrm{T}}$
$R_{\mathrm{q32}}$
$R_{\mathrm{q34}}$
$s_{\mathrm{3}}$
$s_{\mathrm{4}}$