Study on roadway supporting technology under influence of tectonic stress
In view of the fact that the auxiliary transportation roadway in 2-2 mining area of Xiayukou Coal Mine is difficult to maintain due to the influence of high-level tectonic stress,the numerical simulation of the original supporting of the roadway and the horizontal tectonic stress applied at different angles was carried out,the causes of roadway instability and deformation characteristics were ana-lyzed,the countermeasures of roadway supporting were put forward,and the bolt-cable combined supporting mode of high-strength stabil-ity was determined,and monitoring and analysis were conducted on the on-site anchor rods,anchor cable forces,and roadway surround-ing rock displacement.The practice shows that the deformation of roadway surrounding rock has been effectively controlled.
soft rock roadwaytectonic stressbolt-cable combined supporting
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