For Batter Rail Vertical; For Batter Rail Perpendicular - Leica Captivate Technical Reference Manual

Slope staking using
Batter rail vertical or
Batter rail perpendic-
ular
Roads - Road
1. The first step when staking out is to find the catch point of the
slope. As the natural surface is unknown, the process is iterative. As
soon as the measured position (e) is close enough to the real catch
point (c), it can be used as the approximate catch point. Based on
this approximate catch point, the projected catch point (d) on the
slope is calculated.
No reference point offset and no traveller height are taken into
account for this step. The projected catch point (d) is then used as a
starting point for the stakeout of the reference peg (g).
2. The second step is to stake out the reference point relative to the
projected catch point. Select Place reference peg from the toolbox.
Values in Stake Slope Reference Pt guides the user to the position
to place the peg. The defined reference point offset (f) is already
taken into account.
The catch point is marked indirectly using the reference peg. Values
to be marked on the reference peg can be found on Stake Slope
Reference Pt, Info page.
The closer the real catch point and the approximated stakeout catch point are,
the closer the projected catch point gets to the real catch point.
Description
When staking out slopes with the Batter rail vertical or Batter rail perpen-
dicular method, the grade of the slope is marked with a board. Using this
method it is not necessary to stake out the catch point first.

For Batter rail vertical

1
e
d
b b
c
a
Road_024

For Batter rail perpendicular

1
e
d
b
b
c
a
Road_101
The defined rail over ground should guarantee that the rails are positioned as
high as possible, to make them easier to use.
1
2
2
a
a
d
e
b
c
c
d
e
1
2
2
a
a
d
e
b
c
c
d
e
Batter rail for a cut
Batter rail for a fill
Slope to stake out
Natural surface
Catch point of the slope
Rail over ground
Rail over batter, vertical
Batter rail for a cut
Batter rail for a fill
Slope to stake out
Natural surface
Catch point of the slope
Rail over ground
Rail over batter, perpendicular
751