科技创新与应用2024，Vol.14Issue(17)：63-67,5.DOI:10.19981/j.CN23-1581/G3.2024.17.015
隧道近距离下穿既有引水隧洞爆破振动影响研究
严雅梅 1管亚君 1陈旭强2
作者信息
- 1. 浙江交工集团股份有限公司设计院分公司,杭州 310051
- 2. 杭州余杭区交通项目管理有限公司,杭州 311100
- 折叠
摘要
Abstract
Blasting construction has a great influence on the structural safety of the adjacent existing tunnel.Taking the engineering practice as an example,the influence of blasting construction on the vibration of the existing tunnel is analyzed by numerical simulation.The results show that the distance between the influence surface and the blasting source of the existing tunnel directly affects the blasting vibration velocity.On the same section,the vibration velocity of the top and side of the tunnel is higher than that of the bottom area,and the amount of blasting charge has a great influence on the adjacent existing tunnel.It is suggested that the charge quantity and blasting control range should be reasonably controlled to reduce the influence of blasting construction on the existing tunnel.This study can provide theoretical reference for tunnel blasting construction under similar working conditions.关键词
隧道/爆破/振速/数值模拟/位移Key words
tunnel/blasting/vibration velocity/numerical simulation/displacement分类
交通工程引用本文复制引用
严雅梅,管亚君,陈旭强..隧道近距离下穿既有引水隧洞爆破振动影响研究[J].科技创新与应用,2024,14(17):63-67,5.
