深圳地铁一期工程2号竖井控制爆破技术

Controlled blasting technology of 2# shaft in Laojie station-Great Theatre station region of Shenzhen metro

针对 2号竖井浅孔爆破和微差控制爆破相结合的实施情况 ,从爆破方法、爆破参数的控制及对爆破震动速度的监测等方面作了介绍 ,提出了应采取的防护措施 ,并对爆破效果进行了分析。

According to the practical situations of 2# shaft the method combined with the shallow blasting and millisecond blasting is applied. In this paper from blasting method,parameter control,monitoring of blasting vibration velocity and other aspects detailed introduced is made; in addition,corresponding protective measures are proposed. The application effect is also analyzed in the end.