Li Yan graduated from Chang 'an University in 2010 with a bachelor's degree in Civil engineering. He received his PhD in Structural Engineering from Chang 'an University in 2015. Since 2015, he has been at the Department of Safety Engineering, School of Geological Engineering and Surveying, Chang 'an University; During 2015-2021, he worked at the Postdoctoral Mobile Station of Geological Resources and Geological Engineering, Chang 'an University He is mainly engaged in the research of the dynamic mechanical properties of rock and concrete materials, geological environment and underground engineering safety, building safety engineering, and emergency management, etc. He has presided over and participated in more than 10 national- and provincial-level scientific research projects, more than 10 government and enterprise service projects, published more than 30 academic papers related to research results, including SCI and EI retrieval nearly 20, authorized more than 10 related patents and software copyrights, won the second prize of Science and Technology Progress of Shaanxi Province, and participated in the compilation of 2 standards.