Sensitivity analysis for parameters of a monitoring system for steep slopes of open-pit mines

Abstract

Monitoring the stability of steep slopes of open-pit mines is a major issue relating to production safety in mines. In order to determine the technical parameters of a new type of supervising system applied in monitoring steep slopes of open-pit mines, the MSARMA method was used to establish analytical models for the monitoring system, given various parameter settings based on the description of mechanical monitoring principles. We used this sensitivity analysis to conclude that the setting of the most sensitive location of a mechanical monitoring system should be within a range of 1/5∼1/2 of the lower part in a vertical direction of steep slopes, with a rational and feasible range of the dip angle setting between 0°∼20°. Given the analytical results of our on-site experiments, we have shown that the parameters determined reflect the stability of steep slopes accurately and effectively. These conclusions provide a basis for the application of a new type of steep slope stability monitoring technology in open-pit mines.