Demarcation of Structural Domains in Fractured Rock Masses Using a Three-Parameter Simultaneous Analysis Method

Table 1

Aperture dimensions [1, 20].

Aperture	Description	Feature
<0.1 mm	Very tight	“Closed”
0.1–0.25 mm	Tight
0.25–0.5 mm	Partly open
0.5–2.5 mm	Open	“Gapped”
2.5–10 mm	Moderately wide
1–10 cm	Very wide	“Open”
10–100 cm	Extremely wide
>1 m	Cavernous