复杂环境下城市浅埋隧道爆破震动控制技术  

Vibration Control Technology for Shallow Tunnel Blasting under Complex Environment of City

作　　者：罗德丕 池恩安[1,2,3,4] 张修玉[3,4] 王缪斯[3,4] 

机构地区：[1]贵州久联民爆器材发展股份有限公司,贵州贵阳55001 [2]贵州新联爆破工程有限公司,贵州贵阳550002 [3]贵州大学矿业学院,贵州贵阳550003 [4]贵州非金属矿产资源综合利用重点实验室,贵州贵阳550003

出　　处：《矿业研究与开发》2012年第4期105-107,共3页Mining Research and Development

摘　　要：针对某城市浅埋深隧道爆破开挖环境较复杂的实际情况,为确保隧道上方变电站的绝对安全,基于干扰降震的机理,根据实测爆破震动波,并结合现场实际情况,确定合理的微差起爆时间,利用高精度数码雷管对爆破振动效应进行控制。实际监测表明,爆破震动质点振速峰值小于0.3cm/s,满足了规定的要求。In light of the complex environment of blasting excavation of shallow buried tunnel in a city,ln order to secure absolute safety of the transformer substation above the tunnel engineering, based on the mechanism of reducing vibration by wave interference and the measured data of blasting vibration, combined with the actual field conditions, reasonable millisecond delay intervals were determined. A high precision digital detonator was used to control the effect of blasting vibration. The actual monitoring of blasting vibration showed that the peak particle velocity was lower than 0.3 cm/s, meeting the specified requirement.

关 键 词：浅埋隧道 爆破震动 微差爆破 干扰降震 

分 类 号：TD235.4[矿业工程—矿井建设]