On the Freeze-Thaw Instability of an Open Pit Slope Using Three-Dimensional Laser Scanning and Numerical Simulation

Table 1

Parameters of 3D laser scanner.

Parameters	Index
Maximum measuring distance (m)	2000
Minimum measuring distance (m)	1.5
Scanning vision angle (°)
Principle of distance measuring	Pulse
Laser head rotation mechanism	Swinging mirrors
Working temperature (°C)	-20~50