摘要
新建隧道左右线分别上跨既有铁路隧道正洞及斜井,通过分析新建隧道分别采用机械开挖、爆破方式开挖对既有铁路隧道的影响,以及新建隧道运营状态下对既有铁路隧道产生的影响,判断既有隧道的安全状况。
The left and right lines of newly - built tunnel respectively overpass the main cave and slant well of existing railway tunnel. Through analyzing the impact of respectively adopting mechanical excavation and blasting excavation on existing railway tunnel and the impact of newly - built tunnel on existing railway tunnel under the operation state of newly - built tunnel, the safety situation of existing tunnel is judged.
出处
《北方交通》
2017年第5期115-119,共5页
Northern Communications
关键词
新建隧道开挖
既有铁路隧道
爆破施工
上跨
振动速度
Newly- built tunnel excavation
Existing railway tunnel
Blasting construction
Overpass
Vibration velocity
