大连东港商务区220千伏供电隧道主体施工二标段7段地下顶管控制爆破工程，属复杂环境下的地下石方控制爆破，通过控制爆破方案的确定，爆破参数的设计，起爆网络的相应控制等，取得了良好的爆破效果，在保证施工安全的前提下加快了顶管的施工进度，节省了项目投资。“,”Dalian Donggang Business District 220 kV Power Supply Tunnel body construction bid 2 7 section of controlled blasting of underground pipe jacking engineering, underground stone controlled blasting under complicated environment, through the control of the determination of blasting scheme, the design of blasting parameters, blasting network, the corresponding control and so on, has obtained the good blasting effect, on the premise of ensure the safety of construction speed up the construction progress of pipe jacking, Saving project investment。