Research on Green Mining of Coal Resources in China:Current Status and Future Prospects

China is one of the very few countries using coal as its dominant energy resources,with the coal production exceeding one thirds of the total in the world.Some problems relating to coal mining are serious,such as resources destruction,environmental damage,and production accidents.Thus,Chinese scholars firstly proposed the concept of green mining of coal resources and scientific research and technological system for realizing the green mining.Then they put forward the academic viewpoint of realizing scientific mining.In this paper,we discuss,from the connotation and the basic system of the green mining,the structure theory of mining-induced rock mass,and the seepage theory of mining-induced rock mass,the main progresses achieved in the basic research of the coal resource green mining.According to the technical innovations of simultaneous extraction of coal and gas,water preserved mining,and the coal mining with gangue backfilling,we summarize the important progress in the coal resource green mining which has broken the traditional mining technology.Finally,we hold that more attention should be paid to achieving the coal resource green mining,such as the basic research,the key technology,the government's proper function,and the national legislation.