海工挤淤爆破对周围民房的振动影响分析  

Analysis on Vibration Effect induced by Embankment Blasting Toe-Shooting on Buildings around the Monitoring Area

作　　者：张南[1] 方向[1] 范磊[1] 杜锴[1] 

机构地区：[1]解放军理工大学工程兵工程学院,江苏南京210007

出　　处：《爆破器材》2012年第3期35-37,40,共4页Explosive Materials

摘　　要：挤淤爆破施工中,为了防止爆破振动对周围民房建(构)筑物的危害,对现场进行了爆破振动监测,经统计,振动危害均在控制范围内。通过对监测数据的回归和小波包分析发现:段药量和爆破地震波的主传方向对爆破振动效应影响都较大,水介质对爆破地震波的传播能力明显强于岩石介质;爆破振动能量主要集中在低频频带,高频部分很少。In order to prevent surrounding buildings from the hazards of blasting vibration in the blasting toe-shoot- ing, the on-site blasting vibration was monitored. Vibration hazards were within the control according to statistics. By means of regression of the monitoring data and analysis of the wavelet packet, it was found that both segment dose and chief propagation direction of blasting seismic wave have great influence on the blasting vibration. Propagation ability of water medium on blasting seismic wave was stronger than that of the rock medium. Meanwhile, the blasting vibration energy mainly concentrates on low frequency band, but presents insignificance on the higher frequency.

关 键 词：挤淤爆破 民房建筑 振动效应 回归 小波包分析 

分 类 号：TV221[水利工程—水工结构工程] TD235.39[矿业工程—矿井建设]