摘要
在数值模拟和动光弹试验研究的基础上 ,对马蹄形隧道在邻近爆破作用下的动态响应特点进行了分析 ,并在综合考虑入射应力波波长、隧道直径、爆源与隧道的相对距离的基础上 ,提出了隧道迎爆一侧的动应力集中因子的近似确定方法 ,为今后邻近隧道的爆破施工安全提供了有益的参考。
Dynamic responses of hoof shaped tunnels to adjacent blastings were studied using numerical simulations and dynamic photoelastic experiments.A method to determine dynamic stress concentration factor on surrounding rock facing the charge was suggested.The method takes incident wavelength,tunnel diameter and the distance between charges and tunnel surface into account,and can be used to evaluate the safety of tunnels nearby blastings.
出处
《爆炸与冲击》
EI
CAS
CSCD
北大核心
2000年第2期175-181,共7页
Explosion and Shock Waves
