Optimization of Open-cast Mining Procedure Based on RSR Method

To explore the optimal evaluation mechanism of open-cast mining procedure, this paper takes the actual operation status of Huolinhe No.1 Open-cast Mine as the research basis, and makes a deep analysis of the four representative mining procedures proposed by this mine. A detailed and comprehensive evaluation system is constructed using rank-sum ratio (RSR) method. The system covers 17 key indicators and aims to evaluate the advantages and disadvantages of each scheme in an all-round and multi-angle manner. Through the calculation and analysis by RSR method, the comprehensive evaluation of the four types of mining procedure schemes is carried out, and finally the secondary river improvement project is determined as the optimal mining implementation scheme, and the joint mining scheme of the south and north areas is the alternative strategy. The research results of this paper are objective, clear and definite, can not only reveal the effectiveness and feasibility of RSR method in solving the problem of open-cast mining procedure optimization, but also provide a strong technical support and decision-making basis for the future production development of Huolinhe No.1 Open-cast Mine. Thus, this study is expected to further promote the scientific and refined process of mining operations.