摘要
兰渝线桃树坪隧道施工地质为第三系富水粉细砂层,该种岩性隧道在国内极少见到,隧道在开挖后极不稳定,极易出现溜塌甚至大塌方情况.结合该隧道施工中发生的一次较大塌方提出处理方案,并进行了方案分析和比选探讨.
The construction geology of Lan-Yu railway Taoshuping tunnel is Tertiary Silty Sand, the lithology tunnel rarely seen in the country,the tunnel excavation is very unstable and easy to collapse even large landslides slip.The combination of a large landslide occurred in the tunnel con-struction treatment program,making the program analysis and comparison discussion.
出处
《兰州交通大学学报》
CAS
2014年第1期112-118,共7页
Journal of Lanzhou Jiaotong University
关键词
桃树坪隧道
富水粉细砂层
塌方
处理方案
Taoshuping tunnel
tertiary silty
landslides
treatment program
