Abstract:
In order to explore the research status and research frontier of China’s coal mine backfill mining technology and grasp its overall development trend, taking the 1 250 related literatures in the field of backfill mining in China from 2000 to 2024 included in CNKI database as the research object, and used CiteSpace software to make a visualization analysis of the annual number of papers published in this field, the cooperation network between authors and institutions, the co-occurrence of keywords, the emergence of keywords and cluster analysis. The research findings indicate that the overall trend of published research in the field of coal mine backfill mining in our country has evolved from a period of stable development to a phase of steep growth, followed by a tendency towards slight fluctuations and stable development. The main research institutions include the School of Mining Engineering of China University of Mining and Technology, the School of Energy and Mining Engineering of China University of Mining and Technology-Beijing, and other universities and laboratories engaged in coal research. Combing keywords clustering and related literature, it mainly includes high-frequency keywords such as numerical simulation, gob-side entry retaining, green mining, gangue filling, surface subsidence, paste filling, etc. The research on the evolution path of hot spots is obviously related to the national policies. By extracting the keywords with high emergent intensity and reordering them according to the emergent years, the evolution of emergent words with time is obtained, which shows that the research hotspots such as filling treatment of coal-based solid waste and research on multifunctional filling materials have been formed and the future research direction is prospected in recent years. Based on the analysis of knowledge graph in the field of coal mine backfill mining, this paper comprehensively combs the research progress and development trend in this field, which provides scientific basis and practical guidance for relevant researchers and industry development.