Research and application of filling technology for underground gangue roadway in Yuwu Coal Mine
In order to improve the construction speed of rock roadway,Yuwu Coal Mine adopts shield tunneling machine,which produces a large amount of gangue.On the basis of comparing the advantages and disadvantages of three different gangue underground treatment methods of fully mechanized mining gangue filling,fully mechanized mining paste filling and roadway filling,the roadway filling is determined.The model of stress distribution in tunneling roadway is established,and the calculation formula of coal pillar width is deduced.The width of coal pillar is calculated to be 15 m by equivalent mining height.Combined with the actual situation of the site,the transportation route and main equipment of gangue materials were determined.The practical results show that the use of roadway filling to treat gangue underground in situ has significant economic and social benefits,which can provide reference for gangue treatment under similar conditions.
万方数据
维普
