Application and Analysis of Bolt Support in Mine Driving Roadway

Mineral resources are one of the main energy sources used in industrial production. While economy is going up, mining coal mines and other mineral has also intensified. With deepening mining, difficulty increased. In order to ensure safe production relevant enterprises, it necessary vigorously apply supporting technology excavation reduce occurrence accidents area. Based on this, this paper, basis collecting geological conditions a mine, combined with stability theory roadway surrounding rock, existing bolt (anchor cable) support theory, factors affecting reliability support, analyzed principle deduced calculated capacity single group bolts process through conservation theorem. Through Mohr-Coulomb strength limit line analysis reasonable mechanical model established, concluded that ultimate bearing will increase length anchorage section no matter what method for rock have nonlinear positive correlation. However, suspension cannot meet actual work demand, while composite beam arch conclusion. addition, according conclusion suggestion design mode should start study mechanism roadway, application resource mine heading comprehensively analyzed.