Abstract
The deep mine in Xingdong Mine used to be supported by bolting, mesh and shotcreting, which resulted in serious deformation of the roadway. According to the characteristics of surrounding rock deformation and engineering technology, three different supporting technologies are used for numerical simulation analysis: anchor mesh cable support, anchor injection, U-shaped shed support. Through the comparison of the stress changes of the surrounding rock under three different support methods by numerical simulation technology, it can be seen that when the fully closed U-shaped steel ring support is adopted, the self-supporting force of the surrounding rock increases and the support effect is better. The monitoring results show that the fully enclosed U-shaped steel ring support technology has the best supporting effect, the roadway deformation meets the production requirements, the roadway renovation time is longer, and it can meet the requirements of the surrounding rock of the roadway with a depth of 1 km.
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