Abstract: Abstract: Only rely on the deformation monitoring of surrounding rock can’t be evaluated whether roadway supporting load meets the requirements of single rock in the service life of roadway, and there are some limitations that the surrounding rock deformation monitoring to reflect the long-term stability of roadway. Using 2107 track trough as research object to study this security problem, based on the roadway deformation monitoring technology, the derivation of equations considering the time factor on the roadway deformation and anchor bolt (cable) support load, which The estimates amount of deformation in the service life of the roadway and that evaluates bolt (cable) support stability. The research results of this paper to estimate the amount of deformation of surrounding rock in the service period, to judge the supporting structure occur overload time, in order to eliminate hidden danger of support engineering, to formulate measures to gain the initiative response time.

Key words: Keywords：Deformation Monitoring of Surrounding Rock, The Stability of Surrounding Rock and Support Structure, The Surrounding Rock Deformation, Continued Deformation Rate, Bolt (cable) Support Load