Present Status and Outlook on Safety and High Efficient Heading Technology of Mine Rock Roadway in China

In combination with the present status of the mine roadway heading in China, the paper reviewed conclusively the development progress of the mine roc k roadway heading technology in China and stressed the analysis on the problems existed in the construction techniques with the drilling and blasting method and the f ully mechanized heading method in the mine rock roadway heading.The features of the“two high and two low'existed in China mine rock roadway heading were obtaine d.The average month heading rate was only 80 m and the normal circulation rate was only 75%.The causes of the low mine rock roadway heading speed were analyze d.Finally the paper pointed out the development orientation of the safety and high efficient heading in China mine rock roadway.Based on the study on the deep borehol e blasting matched technology and equipment of the new hydraulic drilling jumbo in the mine deep cross section roadway, the drilling and blasting method would assist t he mechanism study on the fine blasting of the mine large cross section roadway and the peripheral directional cracking controlled blasting and the promoted applicatio n of the controlled blasting cartridge.As for the fully mechanized heading method, based on the study on the tunneling technique of the full rock tunnel boring machine with deep borehole pre-cracking standing blasting, a study on the automatic and remote control of the fully mechanized roadheader and the full rock tunnel boring mach ine were conducted.