Study on Failure Law of Deep Surrounding Rock Roadway under Dynamic Disturbance
In order to solve the problem of instability and difficult control of damage in deep surrounding rock under high ground stress,numerical simulation software was used to study the deformation of tunnel surrounding rock under dynamic load disturbance.It was found that with the increase of time,the deformation of tunnel surrounding rock showed a gradually increasing trend,with displacement deformation first appearing on the tunnel arch,followed by the left side.At the same time,an analysis was conducted on the impact of disturbance intensity on the number and type of cracks,and it was found that the magnitude of disturbance intensity had no significant effect on the fracture form of cracks,only on the number of cracks.
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