Optimization of Design Parameters and Intelligent Back-analysis of High Bench Dump Slope in Open Pit

Dump engineering is an important part in production processes of open-pit mining. In order to complete the mine production tasks smoothly, it is necessary to make the most of land possessed by the dump in an economical and reasonable way. In the paper, we use the dump of Qidashan iron mine which belongs to Anshan Iron and Steel Group as an engineering background to achieve the aim of improving the dump capacity. Basic on the limit equilibrium method to analysis on dump slope parameters which must be inversed in the displacement and back analysis, we constructed the Knowledge Base for the inversion of slope mechanical parameters by using orthogonal experiments and numerical simulation, and substituted the in-situ monitoring data after establishing the neural network prediction model. Then we inferred the equivalent mechanical parameters of scattered particles of dump, it can provide a reliable calculation parameters for slope design, thereby maximize the dump capacity and improve the open pit’s economic benefits.