隧道爆破近区爆破振动测试研究  

STUDY OF BLASTING VIBRATION TEST OF AREA NEAR TUNNEL BLASTING SOURCE

作　　者：傅洪贤[1] 赵勇[1,2] 谢晋水[3] 侯永兵[3] 

机构地区：[1]北京交通大学隧道及地下工程教育部工程研究中心,北京100044 [2]铁道部工程设计鉴定中心,北京100844 [3]中铁十四局集团有限公司,山东济南250014

出　　处：《岩石力学与工程学报》2011年第2期335-340,共6页Chinese Journal of Rock Mechanics and Engineering

基　　金：铁道部科技研究开发计划项目(2009G005–C)

摘　　要：隧道掌子面附近围岩的稳定性对施工人员和隧道自身的安全至关重要,实践证明,由隧道爆破远区振动数据得出的围岩振动规律不适用于爆破近区。因此,测试隧道爆破近区围岩的振动、研究隧道掌子面附近围岩的振动规律是隧道钻爆施工安全的重要保证。以贵阳—广州铁路棋盘山隧道为工程背景,在隧道掌子面后方隧道拱顶5m范围的围岩内安装定制的速度传感器,测试隧道拱顶部位围岩的爆破振动速度;利用隧道中导洞的开挖,在中导洞掌子面正上方和侧面2m范围的围岩内安装定制的速度传感器,测试掌子面正上方和侧面围岩的爆破振动速度;研究隧道掌子面后方隧道拱顶、掌子面正上方和侧面围岩的爆破振动规律。研究成果对隧道钻爆施工具有一定的指导意义。When a tunnel is constructed by blasting,the stability of surrounding rock near tunnel face is important for safety of builders and tunnel itself. It is testified that the blasting vibration rule obtained from area remote blasting source is not suitable for the area near tunnel blasting source. So it is necessary to test blasting vibration of the surrounding rock near tunnel blasting source and to study the blasting vibration rule. Based on Qipanshan tunnel of Guiyang-Guangzhou railway,the tailor-made blasting vibration sensors are disposed in the arch crown surrounding rock within the range of 5 m to test the blasting vibration velocity. Taking advantage of middle drift excavation,the tailor-made blasting vibration sensors are disposed in upper and side surrounding rocks within the range of 2 m to test blasting vibration velocity. The blasting vibration rules of arch crown and upper and side surrounding rocks behind tunnel face are studied. The study results can provide references for tunnel blasting construction.

关 键 词：隧道工程 爆破测试 振动规律 爆破近区 

分 类 号：U45[建筑科学—桥梁与隧道工程]