隧道爆破不同类型最大振速对建筑物的影响研究  

Influence of Different Direction Vibration Peak Velocity of Tunnel Blasting on Building

作　　者：王利[1] 王海亮[1] 

机构地区：[1]山东科技大学矿山灾害预防控制教育部重点实验室,青岛266590

出　　处：《爆破》2012年第4期6-9,69,共5页Blasting

基　　金：国家自然科学基金资助项目(10672091);山东省高等学校科技计划资助项目(J08LA07)

摘　　要：胶州湾海底隧道青岛端接线工程左线主隧下穿4层砖混结构建筑物,对其进行爆破振动监测。监测到垂直方向、水平径向、水平切向3个方向的全段最大振速值,并提取各振动方向第1段振速最大值,分析了2种振速最大值随建筑物楼层的变化关系,总结出建筑物爆破振动的规律及2种振速随楼层变化的区别与联系。研究结果表明:垂直方向第1段振速最大值与全段振速最大值数据相同;水平径向第1段振速最大值略小于全段振速最大值;水平切向第1段振速最大值普遍低于全段振速最大值。The left tunnel of Qingdao＇s guide line of Kiaochow Bay Tunnel ran through a building structure with 4 layers brick and concrete and the blasting vibration needs monitoring. The whole peak vibration value of vertical direction, horizontal radial direction and horizontal tangential direction was monitored, and the peak values of first stage were extracted respectively. The relationship between these two types of peak velocity and the building floor height was discussed. Results show that the peak value of first segment is similar to the whole blasting vibration value in vertical direction,while the peak value of first segment is slightly less than the horizontal radial direction vibration and generally less than the whole blasting vibration in horizontal tangential direction.

关 键 词：隧道 振速 建筑物 

分 类 号：TD235.3[矿业工程—矿井建设]