摘要
风火山隧道是目前世界上海拔最高的冻土隧道。详细介绍了风火山隧道喷锚支护中的低温早强喷射混凝土外加剂配制情况及喷射混凝土的配合比的确定,施工质量控制措施,以及锚杆作业情况。实践证明,该种喷锚支护施工技术解决了多年冻土隧道的喷锚支护难点。
Fenghuoshan Tunnel is the highest frozen earth tunnel in the world. The thesis mainly describes how to mix the additive of low-temperature early strength sprayed concrete, the proportion of sprayed concrete in the sprayed concrete anchor support in Fenhuoshan Tunnel, as well as quality control measures and the operation of anchor rod. It is proved that this construction technique has solved the difficulties of sprayed concrete anchor support in donkey＇ s years frozen earth tunnel.
出处
《铁道建筑技术》
2006年第4期25-28,共4页
Railway Construction Technology
关键词
冻土隧道
喷射混凝土
试配试验
frozen earth tunnel
sprayed concrete
mixture and test
