摘要
采用有限元软件ANSYS对某高速公路小净距隧道群进行爆破动力分析,得到钻爆施工过程中新建隧道爆破施工产生的地震波对既有隧道的影响程度,提出新建隧道爆破施工的控制速度参考值,并对小净距隧道群爆破施工开挖顺序进行优化。
The finite element software ANSYS is adopted to analyze the blasting power of construction of small clear distance tunnel group on some expressway. As a consequence, the influential level of the earthquake wave produced by blasting construction of newly built tunnels during the drilling and blasting construction on established tunnels. This paper proposes the reference value of control speed for blasting construction of newly built tunnels and optimizes the excavation sequence of blasting construction of small clear distance tunnel group.
出处
《公路交通技术》
2008年第6期93-95,108,共4页
Technology of Highway and Transport
关键词
小净距隧道群
爆破施工
数值模拟
small clear distance tunnel group
blasting construction
numerical simulation
