摘要
依托安六高铁地宗隧道工程,对现场爆破试验数据进行分析,研究隧道爆破振动的传播规律与振动衰减公式。研究表明,爆破振速随着爆心距的增加而减小。同时基于理论推导和回归拟合,获得了爆破振动衰减公式,由此确定爆破设计参数,并将公式用于地宗隧道进行现场验证。
In this paper,based on Anshun to Liupanshui highspeed railway Dizong tunnel engineering,the field blasting monitoring data is analyzed,the propagation law and vibration attenuation formula of tunnel blasting vibration are studied.The results show that the blasting vibration velocity decreases with the increase of the detonation center distance.At the same time,based on theoretical derivation and regression fitting,the blasting vibration attenuation formula is obtained,and the blasting design parameters are determined.The formula is also used for field verification in local tunnel.
作者
刘强
何鑫和
LIU Qiang;HE Xin-he(China Railway Construction Bridge Engineering Bureau Group Co.Ltd.,Tianjin 310003,China;Shaanxi Provincial Key Laboratory of Geotechnical and Underground Space Engineering,Xi’an 710055,China;School of Civil Engineering,Xi'an University of Architecture and Technology,Xi’an 710055,China)
出处
《工程建设与设计》
2023年第15期92-96,共5页
Construction & Design for Engineering
关键词
台阶爆破
现场监测
传播规律
衰减公式
step blasting
field monitoring
communication law
attenuation formula
