Table of Contents
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Roads - General
Field
Option
Drilling rig
Parallel to
orientation
alignment
Drill Pattern
Description
Plan view
e
b
c
Tunnel_030
a
Alignment
b
Instrument chainage
c
Start chainage or Start distance
d
End chainage or End distance
e
Before instrument
f
After instrument
Guides a jumbo to drill in the direction paral-
lel to the alignment.
Tunnel_031
a
Alignment
b
Drill direction
Guides a jumbo to drill in the user-defined
direction. The direction must not be parallel
to the alignment.
Tunnel_032
a
Alignment
b
Drill direction
f
d
a
a
b
a
b
641
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