Knowledge domain and hotspot trends in coal and gas outburst: a scientometric review based on CiteSpace analysis

Abstract

Abstract Coal and gas outburst is one of the main dynamic disasters in coal mine production. When a coal and gas outburst occurs, a large amount of coal and gas are thrown into the mining space, causing casualties and equipment damage, and even inducing secondary disasters such as gas explosions and coal dust explosions. Therefore, it is essential to carry out relevant research on coal and gas outburst to prevent the occurrence and development of accidents. In order to deeply understand the overall research progress in the field of coal and gas outburst, the Web of Science (WOS) database is used as the sample source, and the bibliometric analysis of the literature in the field of coal and gas outburst from 2000 to 2021 is carried out by CiteSpace software. The knowledge maps of the publication quantity, country, institution, and keyword cluster are drawn. The results show that the time distribution has gone through three stages of germination period, development period, and growth period. Especially during 2010–2021, the publication quantity increased exponentially, which opened the golden age of rapid development in the field of coal and gas outburst. In terms of the cooperation network, China, Australia, and USA are the main core research countries, while China University of Mining and Technology, Chongqing University, and Henan Polytechnic University are the main core research institutions, and the main core journals are IGCG, IGRMM, and Fuel. By drawing the knowledge map of keywords timeline, the evolution law of keywords in the field of coal and gas outburst with time is obtained; Taking keywords as the object, cluster labels with gas outburst, gas extraction, gas control, and pore structure as the core are presented; By extracting and analyzing the top 10 keywords of burst strength, keywords such as stress, disaster, and desorption have gradually become the development trend of hot spots and have been widely concerned by researchers. On this basis, from a new perspective, this paper outlines the "scientific research landscape map" in the field of coal and gas outburst, in order to provide a scientific reference for coal and gas outburst research.