Civil Engineering Reference
In-Depth Information
N
180
°
Pile orientation
50
°
/130
°
130
°
Pole
W 90
°
270
°
E
Figure 2.9
Plotting poles on a
polar net. Plot pole of plane
oriented at 50/130—locate dip
direction of 130
◦
clockwise
around the circumference of a
circle starting at the lower end of
the vertical axis. At 130
◦
radial
line, count 50
◦
out from the
center of the net, and plot a point
at the intersection between 130
◦
radial line and 50
◦
circle.
0
S
N
Surface type
1 [33]
2 [253]
9 [135]
Faults
Joints
Bedding
W
E
Equal Area
Lower Hemisphere
421 Poles
421 Entries
Figure 2.10
Example of
pole plot of 421 planes
comprising bedding,
joints and faults.
S
