トンネル(2)

[III-16] Consideration of vibration measurement results of existing lining during excavation to widen the cross section of the existing tunnel

〇Yoshitomo Tatsumi¹, Atsushi Kusaka¹, Naoto Hiromatsu², Shinsuke Takayama² (1.Public Works Research Institute, 2.Asunaro Aoki Construction Co.,Ltd.)

Keywords:mountain tunnel, lining, renewal, vibration