Liu Tianquan's most outstanding academic achievement is a theoretical system for understanding, predicting, preventing and controlling the deformation and failure of mining rock mass and surface, and a technical system for special mining in mines, which is of milestone significance in the history of mining scientific research. He pioneered the introduction of modern mechanical theories and methods into the fields of mining and special mining, and put forward new concepts and theories of mining response and mechanical concepts of large displacement and great damage caused by large-scale mining, which enjoyed high prestige and extensive influence in academic circles at home and abroad. He has been invited to give academic lectures in newkirk University, Hamburg University, Aachen University of Technology and other universities. Liu Tianquan's theoretical research results are widely cited by related industries at home and abroad.
In the long-term scientific research practice, Liu Tianquan presided over the completion of more than 100 scientific research projects and engineering projects, of which 12 was the first at home and abroad. He presided over and succeeded in the first batch of coal mining faces under the water bodies of Huaihai, Bohai and Weishan Lake, presided over and succeeded in the first test of mining vertical coal pillars at home and abroad, presided over and formulated the technical specifications for the unification of the first coal pillar design and coal mining technology in China's coal mines, and advocated the establishment of the technical appraisal committee of coal mining damage of China Coal Society, which made great contributions to the energy science and technology cause of China and even the world. He has won the national, provincial and ministerial scientific and technological progress award 19 times, participated in the National Science Conference 1978 times, and won three individual awards for underwater coal mining, underground coal mining and significant contribution. He has published 6 monographs, more than 60 papers, more than 0/00 research reports and technical consultation reports, 2 translations and more than 20 translations. According to the data of China Institute of Science and Technology Information and National Institute of Digital Engineering Technology:1991From 2002 to 2003, six doctors were trained in Liu Tianquan. The situation is as follows: the title of the paper, the author's tutor, the deep composite water-bearing loose layer project in the mining area, the theoretical mechanical properties of plastic damage structure in mining subsidence and its application, the grouting and filling technology in caving gap, the interaction between longwall fully mechanized caving support and top coal, the study of mining rock mass failure and seepage characteristics, and the study of water inrush mechanism and water disaster prevention methods in high-pressure aquifer by Dr. Kang Lijun, Dr. Wang, Dr. Wang, Wang, Wang, and Wang.