Study on the Vibration Effect of Short Footage Blasting Load on Surrounding Rock-Support Structure of Tunnel

Table 4

Peak displacement at each measuring point of 5-5 profile (mm).

Blasting times	Arch bottom	Arch top	Left arch waist	Right arch waist
1	8.536	8.345	8.563	8.653
2	11.421	11.652	11.543	11.452
3	13.435	13.856	13.764	13.352
4	21.865	20.745	21.645	21.746
5	35.425	33.452	33.752	34.532