施工計画(3)

[VI-1037] Securing building limits in tunnel lining improvement work

〇KAMIKAWARA ryo¹, OHBA hiroki¹ (1.SENKENKOGYO)

Keywords:Construction limit

This tunnel, which was initially constructed with brick lining, had been loosened in the past due to earth pressure from the ground. The concrete was rolled up all around the lining and repaired. However, the signs of the shrinkage displacement occurred again, so the lining repair to increase the liner plate was planned. In this paper, we report on the design and structure of lining repairs using liner plates, and on how to secure building limits.