城市隧道爆破对附近地表的振动监测与影响分析

摘要

We got the variation law of ground vibration velocity in underground rock blasting excavation which based on fitting the monitoring re-sults of ground vibration velocity peak of blasting vibration in the scene. By comparing the surface particle vibration velocity between cut blasting and non in the same section,explosive charges and test point. The results show that the reasonable design of cutting technology is the key point as cut blasting generates a larger vibration velocity.%对某现场爆破振动地表振动速度峰值监测结果进行了研究，拟合得到了地下工程岩石开挖爆破地面振动速度的变化规律，并对同断面、同药量、同测点掏槽爆破地表质点振速和非掏槽地表质点爆破振速进行比较，结果表明掏槽爆破产生振速较大，合理设计掏槽为关键点。