Study on the integrated planning of deep mining considering rock burst prediction

Abstract

Abstract Deep mining is an inevitable future trend involving resource acquisition. However, as mining depth increases, the high geostress and severe mining disturbance lead to prominent rock burst disasters. At present, the design of deep mines is mainly based on the engineering experiences based on shallow mining. To date, no integrated planning has been implemented for deep mining in domestic mines. Moreover, during the deep mining process, most problems are handled and solved only after the disaster happens due to the lack of understanding of deep disaster problem. In this paper, a large-scale 3D numerical model was established by Map3D software by considering the high geostress environment, the physical and mechanical parameters of rocks, the constitutive model, and preliminary design parameters Based on this model, the disturbance coefficient and energy accumulation state of stopes was predicted, and the rock burst risk was evaluated. According to the analysis results, the medium-deep hole sublevel open stopping method was chosen to reduce the rock burst risk during deep mining. Through the integrated planning of deep mining, the risk of rock burst disasters can be evaluated ahead of time, thus facilitating the use of a more scientific and reasonable mining method in the field of mining engineering. Integrated planning provides a new method for deep mining and can also and can help reduce or even control fundamentally the magnitude and frequency of rock burst disasters. Thus, it has great security and economic significance for mining engineering.