リニューアル(10)

[VI-745] Improvement of bonded anchor used for Tunnel maintenance

〇Masataka Kago¹, Masahisa Saito¹, Hideyuki Saito¹ (1.East Japan Railway Company)

Keywords:Post-installation anchor, bonded anchor, Pull-out test, Withdrawal force

In railway tunnels, repairs such as spalling and water leakage have been implemented with the aim of preventing the effects of trains due to the peeling of the deteriorated part of the lining and the corrosion of rails and overhead lines due to water leakage. The anchor must be securely anchored to the lining. This time, for the anchor with a tip-expandable resin developed for use in tunnel repair work, the structure of the anchor reinforcement and the method of filling the adhesive have been improved so that the anchoring with the lining can be more securely secured.