Study on influencing factors of coal-water coordinated co-mining in coal resource rich area

Under coal mining activities, the ecological fragility of Mu Us Sandy Land has become more prominent, and it is urgent to solve the contradiction between regional coal resource development and water resource protection, so as to build a new pattern of green and high-quality development of mining areas. Taking Hujith mining area of Shendong coal base as a typical research area, based on the concept of green mining, life cycle theory is used to analyze the stage characteristics of the impact of coal mining process on water resources and explain it. Based on the current situation of coal and water resources development and utilization in coal resource rich areas, 23 key influencing factors were extracted from 6 aspects of hydrogeology, natural resources, mining impact, ecological environment, coal mine disaster and social economy, and the influence index system of coal and water coordinated co-mining in coal resource rich areas was established. Based on the sharp-cone network analysis method optimized by coning rules, a “multi-cone common base” model is proposed. The cone top, cone base and shared cone base elements are determined by the influence relationship among factors, and a “multi-cone common base” analysis structure is constructed, so as to explore the interaction degree and feedback relationship between related factors. At the same time, the weight results obtained by three methods, such as network analysis and sharp cone network analysis, are compared and analyzed. The results show that the weight ratio of mining impact system is the highest, followed by coal mine disaster system, and the weight ratio of ecological environment system, social economy system, natural resources system and geological system decreases successively. Under the joint action of various factors, the weight of mine water inflow and mine water utilization rate is relatively large. The research believes that the three processes of mine water source, generation and utilization should be focused on to achieve the coordinated green and high-quality development of coal-water in coal resource-rich areas, and coordinate the two aspects of ecological environment health and mine safety production. Further strengthen the supporting role of coal resource elements in the process of high-quality development of local economy, so as to promote the green and high-quality development of regional coal and water resources.