On November 28, 2024, the meeting on summarizing scientific and technological innovation achievements and exchange of new technologies was held in Xiamen, Fujian Province. The awarded projects of the 2024 Science and Technology Award of China National Coal Association was announced at the meeting. Led by Wang Aiwen and participated by university teachers including Lian Peng, Xiao Yonghui, Shi Tianwei and Wang Gang, the project ‘Key Technologies and Equipment for Prevention and Control of Coal Seam Roadway Impact-Roof Fall Compound Dynamic Disaster’ won the first prize of science and technology.   

After years’ of joint efforts on production, education, research and application, the project established the theory of prevention and control of combined dynamic disasters of coal seam roadway impact and roof caving. It also established a set of technical systems covering impact risk assessment, monitoring, drilling pressure relief, and scour prevention support. The project achievements have been successfully applied to more than 10 mines, such as Longjiabao Coal Mine in Jilin Province, Laohutai Coal Mine of Fushun Mining Group and Gengcun Coal Mine of Henan Dayou Energy Co., Ltd. Their application have effectively solved the technical problem of combined dynamic disaster prevention and control of rock burst and roof caving in the mining process of coal seam roadway, improved the safety production in coal mines, promoted the technical progress of complex dynamic disaster prevention and control in coal industry and achieved remarkable economic and social benefits.  

In recent years, the Institute of Disaster Rock Mechanics worked closely with the School of Environment, the School of Information, the School of Physics and other departments under the support of university leaders. Guided by the principle of going out of the campus, going into the society and going up to a higher level, the institute carries forward the integrated mechanism of talent training, scientific research and social services. By building a strong professional team, conducting scientific research activities and pooling strengths together to solve key problems, the institute has made  in-depth research in the field of coal mine power disaster prevention and control, especially in the key technologies such as roadway impact risk assessment, borehole pressure relief and scour prevention mechanism, energy absorption and scour prevention support technology and quantitative design of support parameters. A risk assessment method of rockburst based on critical stress index method was put forward, which provided a scientific basis for the prediction and prevention of rockburst. The determination method of drilling parameters of scour hole was put forward and the design of pressure relief hole was optimized, which effectively reduced the risk of rock burst in roadway. Energy-absorbing bolt, energy-absorbing anchor cable and energy-absorbing hydraulic support were developed, the design principles and key indexes of roadway anti-impact support were put forward and the design of support structure was optimized, which improved the anti-impact ability of roadway. For the technical problems of prevention and control of combined dynamic disasters of rock burst and roof caving in coal mines, systematic research and engineering practices were carried out. The institute also participated in the formulation and revision of industry standards many times, making great contributions to national coal mine safety production.