摘要
姜路岭隧道是青海省共玉高速公路上具有代表性的大变形隧道,施工过程中曾发生过若干次大变形,给施工造成极大困难,也曾一度使施工处于停滞状态。通过现场观察和拱顶下沉、周边收敛等量测,运用换拱、增设临时钢支撑、加强支护参数、增大预留变形量等技术对该隧道大变形段进行处治,获得满意效果。
Jiangluling tunnel is a typical large deformed tunnel on Gonghe-Yushu expressway in Qinghai province,there were several big deformations during construction,which caused great difficulty to the construction and once stagnated the construction. Through on-the-spot observation and measurement of arch settlement and peripheral convergence,the author applied technologies such as changing the arch,adding temporary steel support,increasing support parameters,increasing foreseen deformation,etc.,to treat the large deformation of the tunnel,the result is satisfying.
出处
《公路交通技术》
2016年第6期115-120,共6页
Technology of Highway and Transport
关键词
监控量测
多年冻土隧道
炭质页岩
大变形
monitoring ＆ measurement
permafrost tunnel
carbonaceous shale
large deformation
