10.6.7 Laser image scanning system
3-D laser scanning has recently become popular in the mining industry because of its high precision and speed, which surpasses that of the traditional single-point measurement method. This technique captures the integrated, comprehensive, consecutive and associated panoramic coordinate data with high precision. It also describes factually the frame and configuration of the object. Therefore, the resulting estimates are closer to actual conditions. The rescale range analysis method and a 3-D laser image scanning system are used to obtain slope data. From this, the characteristic slope displacement may be analyzed.
A 3-D laser scanning system is capable to predict slope failure with better accuracy. However, the exact identification of a corresponding point in scan is a problem in this method.