Reliability investigation of demolition initiation network for urban viaduct

This paper presented the delay characteristics of relay point detonator used in multiple parallel initia- tion networks and proposed the simple formula to calculate expectations of relay point initiation time. Corre- sponding reliability standards were established based on the different scale of non-electric initiation network. A multiple parallel initiation network were created, which could not only avoid the occurrence of the viaduct roll- over during dumping process, but also improve the reliability standard and realize the unlimited segmentation. Results could provide a good reference for the design of viaduct blasting initiation network.