摘要
北固山隧道ZK5+390—ZK5+360段平均埋深在80cm左右,局部地段露出地表,属于超浅埋段,施工过程中采用常规施工方法极易发生坍塌、冒顶事故,如果采用明挖施工,对附近建筑物及游客存在一定的安全隐患,针对上述客观因素的存在,采用盖挖法施工,并对局部方案进行调整和优化,最终解决此种情况的施工难题。
The mean buried depth of Beigushan tunnel ZK5 + 390—ZK5 + 360 segment is about 80 cm,and exposed at surface in local segment,it belongs to ultra-shallow buried segment. The usually construction methods could be lead the collapsed or roof fall in the construction tunnels. If the usually excavation construction is applied,the safety of surrounding buildings and peoples can't insure,so the covered excavation method is applied in the tunnels construction,and the adjustion and optimization of local scheme is done to solve the construction difficulties.
出处
《施工技术》
CAS
北大核心
2015年第S2期381-384,共4页
Construction Technology
关键词
隧道工程
超浅埋
盖挖法
优化
tunnels
ultra-shallow buried
covered excavation method
optimization
